From daly.66 at osu.edu Mon Nov 2 08:43:07 2020 From: daly.66 at osu.edu (Daly, Marymegan) Date: Mon, 2 Nov 2020 13:43:07 +0000 Subject: [Nhcoll-l] Mollusc curator position at Ohio State Message-ID: The Ohio State University Department of Evolution, Ecology, and Organismal Biology seeks a curator for the Mollusc collections of the OSU Museum of Biological Diversity. This is a staff position within the College of Arts and Sciences. The Mollusc collections are especially strong in their holdings of freshwater Molluscs and are part of ongoing, state-funded research programs for conservation. Duties include those related to the accession and maintenance of the collection, service to professional societies and within the university, and outreach to the general public. Required qualifications include taxonomic expertise in Molluscs, a MS or more advanced degree in Biology or a related field, and experience with museum collections. Applications are accepted through 11/15/2020. Details, including the portal for application, are here http://www.jobsatosu.com/postings/103882. Questions about the position can be directed to Marymegan Daly, Director of the Museum of Biological Diversity daly.66 at osu.edu -------------- next part -------------- An HTML attachment was scrubbed... URL: From emily.braker at colorado.edu Mon Nov 2 15:56:44 2020 From: emily.braker at colorado.edu (Emily M. Braker) Date: Mon, 2 Nov 2020 20:56:44 +0000 Subject: [Nhcoll-l] Webinar (Nov. 10) - Introduction to Arctos for Bird & Egg/Nest Collections Message-ID: Please join us for an introduction to managing Ornithology Collections in Arctos. Abstract: Arctos serves data on over 467,000 ornithological records from 29 collections, including bird specimens, observations, eggs, nests, and media (photographs, audio recordings). Data sets range from 6 to over 191,000 records, making Arctos attractive for both small and large collections. The oldest specimen is a skin from 1830, and representation is broad both in taxonomic and geographic scope. This webinar will highlight some of the key features of Arctos for managing ornithological data, including: shared localities and georeferences, relationships between different types of specimens (e.g., host-parasite, predator-prey), transactions (accessions, loans, permits), object tracking, and projects/publications for citing usage in research, teaching, and art. We also will illustrate how media are linked to bird and egg/nest specimens in Arctos, and will showcase how these media have been used in impactful ways. Finally, we will discuss how Arctos handles bird observational data, a unique feature for a museum collection management system. Presenters: Carla Cicero (Staff Curator of Birds, Museum of Vertebrate Zoology) and Elizabeth Wommack (Curator and Collections Manager of Vertebrates, University of Wyoming Museum of Vertebrates) When: Tuesday, November 10, 2020 at 3:00pm ET (19:00 UTC) Where: https://cuboulder.zoom.us/j/92226989182 Can't Make It?: View archived recordings here https://arctosdb.org/learn/webinars/ Emily Braker Vertebrate Collections Manager, Zoology Section University of Colorado Museum of Natural History 265 UCB, Bruce Curtis Building Boulder, CO 80309-0218 Phone: 303-492-8466 http://www.colorado.edu/cumuseum/research-collections/vertebrates -------------- next part -------------- An HTML attachment was scrubbed... URL: From campbell at carachupa.org Tue Nov 3 14:30:13 2020 From: campbell at carachupa.org (Mariel Campbell) Date: Tue, 3 Nov 2020 12:30:13 -0700 Subject: [Nhcoll-l] SPNHC Book Reviews Editor Needed Message-ID: The Society for the Preservation of Natural History Collections is seeking applications for an Associate Editor for Book Reviews. The Book Reviews Editor is a member of the Publication Committee who works to identify potential texts, solicit and edit reviews, and collaborate with the SPNHC Managing Editor and the SPNHC Newsletter Editor to publish the reviews in the SPNHC Connection Newsletter or online. For more information, please contact: Mariel Campbell Managing Editor editor at spnhc.org -------------- next part -------------- An HTML attachment was scrubbed... URL: From aflemming at flmnh.ufl.edu Wed Nov 4 13:48:14 2020 From: aflemming at flmnh.ufl.edu (Flemming,Adania) Date: Wed, 4 Nov 2020 18:48:14 +0000 Subject: [Nhcoll-l] We need your help: brief survey- undergraduates using museum collections Message-ID: Hello SPNHC folks, I hope you are all doing well given the multiple pandemics we are experiencing across the globe. Herein we provide you with an election break/distraction for those of us in the US or tuned in to the elections. You can help us help the next generation of academics. Do you use or have you considered using natural history collections in your undergraduate courses? If so, please help with my research on courses using natural history collections by filling out this brief survey. BACKGROUND: My name is Adania Flemming. I am a PhD student in the department of Biology with joint appointment in the Florida Museum of Natural History, at the University of Florida. I am also a research assistant with iDigBio (Integrated Digitized Biocollections). I created an Introduction to Natural History Museums course geared towards introducing undergraduate students to careers in Science Technology Engineering Art and Mathematics (STEAM) through hands on research-based projects. As part of my research, I am interested in knowing if similar courses exist and understanding the goals of those courses. I am specifically interested in courses meant to introduce students to the nature of science, provide an understanding of how scientific knowledge is generated, and what conducting research entails. I would like to know the role that museum specimens play in this process of learning. I am secondarily interested in how museum collections are used in other aspects of teaching undergraduate students. Last, my collaborator Kari Harris, who started the Natural History Collections Club Network (NHCCN), is interested in gathering information about relevant student clubs near you. Please complete the survey by Wednesday 2nd December at 5pm Eastern. Feel free to email me directly if you have questions. Full Survey Link: https://ufl.qualtrics.com/jfe/form/SV_5b9rYCgKiKD95Rz Thank you! Regards, Adania Flemming M.S. Pronouns: She/her/hers Department of Biology Florida Museum of Natural History/iDigBio/TESI University of Florida Office Phone: 352-273-1951 Email: aflemming at flmnh.ufl.edu FMSA Website: https://www.floridamuseum.ufl.edu/student-association/ -------------- next part -------------- An HTML attachment was scrubbed... URL: From jpandey at aibs.org Thu Nov 5 11:10:27 2020 From: jpandey at aibs.org (Jyotsna Pandey) Date: Thu, 5 Nov 2020 11:10:27 -0500 Subject: [Nhcoll-l] Bring the AIBS Enabling Interdisciplinary and Team Science Course to Your Institution In-Reply-To: References: Message-ID: *Online Professional Development Training for Scientists* Reports abound from professional societies, the Academies, government agencies, and researchers calling attention to the fact that science is increasingly an interdisciplinary, transdisciplinary, inter-institutional, and international endeavor. In short, science has become a ?team sport.? Team science is increasingly common in the 21st century to develop convergent solutions to complex problems. Collaboration is no longer limited to sharing ideas with the biologist in the lab next door. The questions confronting science often require teams that may include a mix of computer and information scientists, physical and social scientists, mathematicians, ethicists, policy and management experts, as well as community stakeholders and citizen scientists. Adding to this complexity, teams span programs within organizations, cross organization boundaries to form institutional consortia, and often include international partners. There is a real and present need to better prepare scientists for success in this new collaborative environment. The American Institute of Biological Sciences (AIBS) has responded to this call with a program for scientists, educators, and individuals who work with or participate in scientific teams. This intensive, two-day, interactive, professional development course was developed by scientists and other experts focusing on collaboration and teamwork to provide participants with the knowledge and skills required to become productive and effective members of scientific teams. *Nothing teaches collaboration like practicing collaboration. *This is not a course that asks you to learn in isolation. It is a microcosm of scientific collaboration, with extensive hands-on learning as part of a scientific team, with scientific case studies and examples. *Who should attend?* - Research program/lab directors - Scientists and faculty engaged in collaborative projects - Researchers and faculty working at the interface of different fields and/or scientific approaches - Graduate students and postdocs looking to augment research planning and communication skills - Groups interested in planning successful research proposals and interdisciplinary research teams - Academic, government, and industry scientists This course is designed for anyone involved in collaborative scientific endeavors. Team leaders will find the course especially helpful. Because participants will work on ?real-world? team science concerns, we encourage multiple members of a team to attend together. *Participants will develop and hone the skills needed to:* - Explain interdisciplinary team science and characteristics of effective scientific teams - Describe how teams work - Improve team communication and trust - Resolve individual and team conflicts - Recognize competencies and characteristics of effective team leadership - Create effective teams and team culture - Develop a shared vision, mission, plan, and key performance indicators for a scientific team - Identify and assess the right mix of competencies and people needed for a scientific team - Use team tools and processes such as quality improvement cycle and knowledge mapping Participants also have ongoing free access to a course folder packed with resources like course presentation slides, exercises to use with teams, templates, articles, and links to surveys and assessments, videos, websites, and other information. *We'll come to you* AIBS can bring the course to your university, department, lab, or research team. We can also customize the course based on your needs. As a result of the COVID-19 pandemic, we now offer an online version of the workshop. If you are interested in organizing a workshop for your institution, please contact Scott Glisson at sglisson at aibs.org for more information. Additional information, including a course outline, is available at https://www.aibs.org/news/2020/200420-team-science.html. We look forward to hearing from you! Jyotsna Pandey, Ph.D. Public Policy Manager American Institute of Biological Sciences -- This message is confidential and should only be read by its intended recipients.? If you have received it in error, please notify the sender and delete all copies. -------------- next part -------------- An HTML attachment was scrubbed... URL: From Lennart.Lennuk at loodusmuuseum.ee Mon Nov 9 05:01:34 2020 From: Lennart.Lennuk at loodusmuuseum.ee (Lennart Lennuk) Date: Mon, 9 Nov 2020 10:01:34 +0000 Subject: [Nhcoll-l] Fish stuffings Message-ID: Dear curators of zoology, We have some 200 fish stuffed with diferent materials (eg. cotton batting, plaster). Mostly made in the middle of 20. century and later, so the arsenic has been in use during tha making. The stuffings have been damaged by mold and also too dry climate and we are planning to restore those. Has anybody have experience with Fish stuffings? I find the stuffing quite extraordinary conservation method for fish. Is the taxidermy practice as rare as it seems to me or are there a lot of stuffed fish out there? ? Head! Lennart -------------- next part -------------- An HTML attachment was scrubbed... URL: From abentley at ku.edu Mon Nov 9 11:49:14 2020 From: abentley at ku.edu (Bentley, Andrew Charles) Date: Mon, 9 Nov 2020 16:49:14 +0000 Subject: [Nhcoll-l] FW: Science Policy News from AIBS In-Reply-To: References: Message-ID: <44E51D67-2D19-4D78-BEC9-D22D7A00B25C@ku.edu> Email not displaying correctly? View it in your browser. AIBS Public Policy Report AIBS Public Policy Report, Volume 21, Issue 23, November 9, 2020 * Science in the U.S. Elections * AIBS Submits Comments Opposing Proposed Student Visa Restrictions * Trump Administration Delists Gray Wolves from Endangered Species Act Protections * OSTP Highlights Science & Technology Achievements during Trump Administration * Webinar Series: Resources for Natural History Collections in a New Virtual World * Now Online: AIBS Enabling Interdisciplinary and Team Science * Four Biologists Included in MacArthur Fellows Class of 2020 * Short Takes * USGS Director Retaliated Against Whistleblower, Says Watchdog * NIH Announces Final Policy for Data Management and Sharing * U.S. Leaves Paris Climate Agreement * From the Federal Register ________________________________ The AIBS Public Policy Report is distributed broadly by email every two weeks . Any interested party may self-subscribe to receive these free reports by email. With proper attribution to AIBS, all material from these reports may be reproduced or forwarded. AIBS staff appreciates receiving copies of materials used. If you have questions, comments, or suggestions, please contact the AIBS Public Policy Manager, Jyotsna Pandey, at 202-628-1500 x 225. ________________________________ Science in the U.S. Elections Former Vice President Joe Biden (D) has won the 2020 U.S. Presidential elections after securing narrow but crucial victories in the battleground states of Arizona and Pennsylvania. He is also currently leading in the vote tallies in Georgia. President Donald Trump has not yet conceded. His campaign has filed multiple lawsuits challenging vote counting processes and attempting to block counting efforts in a number of states. He has questioned the legitimacy of mail-in ballots since before the election, and has now accused Democrats of ?stealing? the election without offering any evidence. Several Republican lawmakers have expressed support for Trump?s assertions, including Senator Lindsey Graham (R?SC), Senator Marco Rubio (R-FL), and House Minority Leader Kevin McCarthy (R?CA). Only two Republican Senators, namely Lisa Murkowski (AK) and Mitt Romney (UT), have acknowledged Biden?s win. Science was not a priority for President Trump during his term. He consistently proposed drastic budget cuts to a number of federal science agencies and delayed the appointment of a White House science advisor for 19 months. Furthermore, his Administration made attempts to bar scientists funded by Environmental Protection Agency (EPA) from serving on advisory panels, prevent EPA from formulating regulatory decisions on studies for which the underlying data is not publicly available; censor government science; withdraw from the Paris Climate agreement; and discredit the nation?s leading epidemiologist, Dr. Anthony Fauci, during a pandemic. President-Elect Biden, on the other hand, has pledged to ?put scientists and public health leaders front and center? and ensure that government scientists ?do not fear retribution or public disparagement for performing their jobs.? However, he could face hurdles in implementing his science priorities, depending on which party controls the Senate. Control of the Senate will likely not be determined until January. The two Georgia Senate races are headed towards runoff elections with no candidate in either contest securing the required 50 percent threshold in votes to win. According to current projections, Democrats will keep their majority in the House of Representatives despite losing some seats. Several congressional candidates and incumbents with science backgrounds are likely to lose their reelection bids. Here is how some of the key science candidates have fared in the elections so far: * Representative Sean Casten (D?IL), a biochemical engineer, has defeated the Republican challenger for his seat. * Representative Elaine Luria (D?VA), a nuclear engineer, has won against former House member Scott Taylor. * Representative Kim Schrier (D?WA), a pediatrician, is leading against her opponent and is expected to retain her seat. * Representative Bill Foster (D?IL), a physicist who also chairs the House Science Subcommittee on Investigations and Oversight, has been re-elected for his fifth term. * Representative Joe Cunningham (D?SC), an environmental engineer who was elected to the House in 2018, lost his seat to Republican challenger Nancy Mace. * Representative Lauren Underwood (D?IL), a former registered nurse and health policy expert, is narrowly leading the Republican challenger, State Senator Jim Oberweis. * Nancy Goroff, a chemistry professor at Stony Brook University and Democratic challenger to Representative Lee Zeldin (R?NY) is currently trailing by a significant margin. * Kathleen Williams, a water resource management expert from Montana, has lost to Republican Matt Rosendale for a seat on the House. * Cameron Webb, a physician and health care advocate, was defeated by Republican Robert Good in Virginia. * Democrat Hiral Tipirneni, an emergency room physician, has lost to Representative David Schweikert (R?AZ) in Arizona. * Democrat Merav Ben-David, who is an ecologist, lost her bid for a Senate seat in Wyoming to former Representative Cynthia Lummis. Representatives Eddie Bernice Johnson (D?TX) and Frank Lucas (R?OK) will remain Chair and Ranking Member, respectively, of the House Committee on Science, Space, and Technology. Representative Haley Stevens (D?MI), who chairs the Subcommittee on Research and Technology, Representative Lizzie Fletcher (D?TX), who chairs the Energy Subcommittee, and Representative Mikie Sherrill (D?NJ), who leads the environmental panel, have also retained their seats. However, Representative Kendra Horn (D?OK), who currently chairs the Subcommittee on Space and Aeronautics, has lost her seat. In the Senate, two members of the Commerce, Science, and Transportation Committee were up for reelection this year. Senator Cory Gardner (R?CO), who is an ardent advocate for research, lost to John Hickenlooper (D). Senator Gary Peters (D?MI) narrowly won against Republican challenger John James. AIBS Submits Comments Opposing Proposed Student Visa Restrictions The American Institute of Biological Sciences (AIBS) has submitted comments to the U.S. Department of Homeland Security opposing a recent proposal to impose new visa restrictions on international students. The proposed rule would establish fixed terms of two to four years for international students and exchange visitors to complete their degrees and research, forcing students to reapply during their course of study and potentially leading to delays in degree completion. ?If finalized, this rule would unnecessarily create uncertainty for many international students and exchange visitors about their ability to maintain their legal status in the United States during the course of their studies or program,? argued AIBS. ?This policy undermines our ability to recruit the best science, technology, engineering, mathematics, and medicine (STEMM) students who may instead choose to study in China or Europe. Instead of creating additional complications and barriers, the federal government should be encouraging international students to study in the U.S.? It was also noted that the new requirements would increase the burden on the immigration system, which already closely monitors international students and visiting scholars. AIBS has called for the proposed rule to be withdrawn in its entirety. Trump Administration Delists Gray Wolves from Endangered Species Act Protections On October 29, 2020, the Trump Administration announced the removal of the gray wolf from the Endangered Species Act list, ending federal protections for one of the first species safeguarded by the Act and placing the responsibility of overseeing the predators on states and tribes. The delisting would affect gray wolf populations in the lower 48 states. Interior Secretary David Bernhardt claimed that this removal was based on the ?best scientific and commercial data available.? However, scientists that independently reviewed the proposal, which was issued in March 2019, raised concerns about lifting protections citing lack of scientific justification. Dr. Adrian Treves, one of the reviewers and Professor of Environmental Studies at the University of Wisconsin-Madison, said the proposal did not accurately estimate how many wolves would be killed by people. Another reviewer, Dr. Carlos Carroll, an independent biologist with the Klamath Center for Conservation Research, said the proposal was ?critically flawed? and ignored the importance of genetic variation in species. Drs. Treves and Carroll also published an article in BioScience rebutting the proposal. An upcoming BioScience Talks podcast, featuring the article?s authors, will be released on Wednesday, November 11. Conservation groups have also criticized the rule. ?Instead of pursuing further wolf recovery, the Fish and Wildlife Service has just adopted the broadest, most destructive delisting rule yet,? said Collette Adkins, Carnivore Conservation Director at the Center for Biological Diversity. Farmers and hunters welcomed the new rule, citing their ability to protect their livestock from the predators. ?Producers have endured unacceptable personal stress, ongoing chronic confirmed and unconfirmed predation as well as loss of production in the cattle they work so hard to protect,? stated Oregon Cattlemen?s Association?s Wolf Committee Co-Chair Roger Huffman. Gray wolf protections have had a contentious standing, with the most recent attempt at delisting the species occurring during the Obama administration in 2013. A federal court order in 2014 eventually reinstated Endangered Species Act protections for gray wolves after there was a sharp decline in their population due to hunting. Parts of the nation have seen significant increases in gray wolf populations but the population remains absent from much of their historical range. The current delisting highlights the underlying disagreement on the scope of the Endangered Species Act itself; whether it should raise endangered species out of extinction or should they be restored until they occupy a significant role in their ecosystem. The final rule delisting the gray wolf will go into effect on January 4, 2021. Environmental groups are planning to challenge the rule in the courts. OSTP Highlights Science & Technology Achievements during Trump Administration On October 27, 2020, the White House Office of Science and Technology Policy (OSTP) released a report describing President Trump?s science and technology (S&T) accomplishments during his first term in office. Notably, a press statement released along with the report highlighted ?ending the COVID-19 pandemic? as one of the achievements. The report, Advancing America?s Global Leadership in Science and Technology ? Trump Administration Highlights: 2017-2020, enumerates ?significant investments, policies, and other actions? undertaken by the Administration to advance science and technology progress. ?President Trump has solidified America?s standing as the most scientifically and technologically advanced nation the world has ever known,? stated OSTP Director, Dr. Kelvin Droegemeier. ?We?ve announced unprecedented investments in artificial intelligence and quantum information science, launched new workforce initiatives and public-private collaborations, and established first-of-their-kind international alliances to develop critical technologies with our allies,? said U.S. Chief Technology Officer Michael Kratsios. The largest section of the report was dedicated to the achievements in promoting the five ?Industries of the Future? which included artificial intelligence, quantum information science, and biotechnology. Specifically, the Trump Administration boasts its efforts in modernizing the regulatory approval process for agricultural biotechnology products and the creation of a new interagency Subcommittee on Bioeconomy S&T within the National Science and Technology Council (NSTC). The report highlights the Administration?s efforts in improving health security and innovation, including measures undertaken to address the COVID-19 pandemic. Unlike the press statement, the report itself does not specify ending the pandemic as an achievement, but it does expound on the efforts made by the administration to fast-track a vaccine against COVID-19, through the Operation Warp Speed program, and its critical role in supporting research and development and related activities. In addition, the document highlights the many different ways in which the ?the federal government has taken action to understand and protect our environment to ensure that the American people will have clean air, clean water, and a resilient environment for generations to come.? The report describes actions taken in ?exploring, preserving, & protecting our oceans,? the Trillion Tree?s Initiative, along with the Administration?s efforts in predicting ?extreme environmental events.? Another section of the report discusses efforts in ?building the S&T workforce.? The Administration highlights its efforts to promote STEM (science, technology, engineering, and math) education, including creating the Federal STEM Education Strategic Plan released by the NSTC Committee on STEM Education in 2018, ?expanding access to high-quality STEM and computer science education to K-12 students? through a 2017 Presidential Memorandum, and partnering with different institutions to launch the National Q-12 Education Partnership. Despite the Administration?s repeated proposals to drastically cut funding for scientific research, the report touts its efforts in ?promoting & protecting the research enterprise?. Specifically, the document discusses how the Trump Administration initiated the Joint Committee on Research Environment (JCORE) in 2019 to bring ?together government, academia, and many others to address administrative burdens on federally funded research; improve rigor and integrity in research; create safe, inclusive, and equitable research settings; and protect our research assets while ensuring the research enterprise remains open and collaborative.? Webinar Series: Resources for Natural History Collections in a New Virtual World Recognizing the rapid changes happening within museum communities and the efforts being made throughout the community to adapt to these changes, iDigBio is organizing a webinar series, entitled Adapting to COVID-19: Resources for Natural History Collections in a New Virtual World. The webinar series aims to help provide insight into how different groups and institutions are adapting to life in a quickly evolving world. AIBS, the Society for the Preservation of Natural History Collections (SPNHC), and the Natural Science Collections Alliance contributed to the planning of these programs. The next webinar will be held on November 18 from 2:00?3:00 PM ET. All webinars will be recorded and held in Zoom. Engaging Public Participation in Collections Digitization Learn about opportunities to use the Zooniverse platform for collections digitization, including examples of Notes from Nature related to transcription and phenology scoring projects. There will be a demo of available project management tools for NfN, followed by a higher-level explanation of the technology behind the platform that makes it all possible. Speakers: * Austin Mast; iDigBio, Florida State University * Katie Pearson, Project Manager California Phenology TCN Zoom link: https://ufl.zoom.us/j/99571640979?pwd=V0VwbDBySEtBYUptNUZ2L0RQNGh0UT09 Visit the webinar series page for more information: https://www.idigbio.org/content/webinar-series-adapting-covid-resources-natural-history-collections-new-virtual-world Now Online: Enabling Interdisciplinary and Team Science Reports abound from professional societies, the Academies, government agencies, and researchers calling attention to the fact that science is increasingly an interdisciplinary, transdisciplinary, inter-institutional, and international endeavor. In short, science has become a ?team sport.? Team science is increasingly common in the 21st century to develop convergent solutions to complex problems. Collaboration is no longer limited to sharing ideas with the biologist in the lab next door. The questions confronting science often require teams that may include a mix of computer and information scientists, physical and social scientists, mathematicians, ethicists, policy and management experts, as well as community stakeholders and citizen scientists. Adding to this complexity, teams span programs within organizations, cross organization boundaries to form institutional consortia, and often include international partners. There is a real and present need to better prepare scientists for success in this new collaborative environment. The American Institute of Biological Sciences (AIBS) has responded to this call with a program for scientists, educators, and individuals who work with or participate in scientific teams. This intensive, two-day, interactive, professional development course was developed by scientists and other experts focusing on collaboration and teamwork to provide participants with the knowledge and skills required to become productive and effective members of scientific teams. Nothing teaches collaboration like practicing collaboration. This is not a course that asks you to learn in isolation. It is a microcosm of scientific collaboration, with extensive hands-on learning as part of a scientific team, with scientific case studies and examples. The Enabling Interdisciplinary and Team Science course is designed for anyone involved in collaborative scientific endeavors. Team leaders will find the course especially helpful. Because participants will work on ?real-world? team science concerns, we encourage multiple members of a team to attend together. As a result of the COVID-19 pandemic, we now offer an online version of the workshop. We can also customize the course and bring it to your university, department, lab, or research team. If you are interested in organizing a workshop for your institution, please contact Scott Glisson at sglisson at aibs.org for more information. Additional information, including a course outline, is available at https://www.aibs.org/news/2020/200420-team-science.html. Four Biologists Included in MacArthur Fellows Class of 2020 The John D. and Catherine T. MacArthur Foundation has announced twenty one recipients of the prestigious MacArthur Fellowships this year, including four with biological expertise: * Nels Elde is an evolutionary geneticist at the University of Utah. He investigates host-pathogen interactions and the evolutionary processes that enable organisms to better attack others or defend themselves. * Polina V. Lishko is a cellular and developmental biologist at the University of California, Berkeley investigating the molecular mechanisms that guide mammalian fertilization. * Mohammad R. Seyedsayamdost is a biological chemist in the Department of Chemistry at Princeton University investigating the synthesis of new small molecules with bioactive or therapeutic properties. Seyedsayamdost is increasing access to previously unknown and potentially therapeutic biochemical compounds. * Damien Fair is a cognitive neuroscientist at the University of Minnesota Medical School, He investigates resting state brain connectivity?the brain?s intrinsic or spontaneous neural activity by combining technical advances in functional magnetic resonance imaging (fMRI), advanced mathematical techniques, and expertise in psychology and neuroscience. The MacArthur Fellows Program rewards people of extraordinary talent and promise in their field with a five-year grant to help them continue their pursuits. More information on the MacArthur Fellows Program can be found here. Short Takes * According to a report by the Department of the Interior Inspector General, U.S. Geological Survey (USGS) Director James Reilly violated federal whistleblower protection statute by reassigning an employee to a different position after learning that the employee had filed a complaint against him with the Inspector General. ?The agency did not meet its burden of establishing by clear and convincing evidence that it would have reassigned the complainant to a different position even if the complainant had not engaged in a protected activity,? reads the report. Chairwoman of the House Committee on Oversight and Reform Carolyn Maloney (D?NY), Chairman of the Subcommittee on Government Operations Gerald Connolly (D?VA), and Chairman of the House Committee on Natural Resources Ra?l M. Grijalva (R?AZ), have called for Reilly?s removal from USGS. It seems unlikely that Interior Secretary David Bernhardt will take any disciplinary action. ?The Inspector General's report is wrong in its legal and factual conclusions,? said Interior spokesman Nicholas Goodwin. * The National Institutes of Health (NIH) has issued a new Policy for Data Management and Sharing, which requires researchers to ?plan prospectively? for managing and sharing scientific data generated with NIH funds. The new policy ?establishes the baseline expectation that data sharing is a fundamental component of the research process, which is in line with NIH?s longstanding commitment to making the research it funds available to the public.? The policy will go into effect on January 25, 2023. * The United States officially withdrew from the Paris climate agreement on November 4, 2020. The landmark agreement was forged in 2015 to limit global warming to below 2 ?C above pre-industrial temperatures. President Donald Trump first announced that the United States would pull out from the agreement in June 2017. President-Elect Joe Biden has vowed to rejoin the Paris accord early in his term. From the Federal Register The following items appeared in the Federal Register from October 26 to November 6, 2020. Week Ending November 6, 2020 Commerce * Ocean Exploration Advisory Board (OEAB) Meeting Health and Human Services * Advisory Council for the Elimination of Tuberculosis Meeting (ACET) * Request for Information (RFI): Inviting Comments and Suggestions on the NIH-Wide Strategic Plan for COVID-19 Research * Review and Revision of the Screening Framework Guidance for Providers of Synthetic Double-Stranded DNA * Solicitation of Nominations for Appointment to the Tick-Borne Disease Working Group; Extension of Nomination Period Interior * Aquatic Nuisance Species Task Force Meeting * Endangered and Threatened Wildlife and Plants; Removing the Gray Wolf (Canis lupus) From the List of Endangered and Threatened Wildlife; Final Rule National Science Foundation * Sunshine Act Meeting; National Science Board Office of Science and Technology Policy * Implementing the Freedom of Information Act Week Ending October 30, 2020 Commerce * Agency Information Collection Activities; Submission to the Office of Management and Budget (OMB) for Review and Approval; Comment Request; Sea Grant Program Application Requirements for Grants, for Sea Grant Fellowships * Gulf of Mexico Fishery Management Council; Public Meeting * New England Fishery Management Council; Public Meeting * North Pacific Fishery Management Council; Public Meeting * Scientific Advisory Subcommittee to the General Advisory Committee and General Advisory Committee to the U.S. Section to the Inter-American Tropical Tuna Commission; Meeting Announcements * Solicitation of Nominations for Appointment to the World Trade Center Health Program Scientific/Technical Advisory Committee (STAC) Environmental Protection Agency * Notification of Public Meetings of the Science Advisory Board Radiation Advisory Committee Augmented for the Review of Revision 2 of the Multi-Agency Radiation Survey and Site Investigation Manual (MARSSIM) (Draft for Public Comment) Health and Human Services * Meeting of the National Advisory Council for Healthcare Research and Quality * Meeting of the Tick-Borne Disease Working Group * Office of The Director, National Institutes of Health Notice of Meeting * Solicitation of Nominations for Appointment to the Lead Exposure and Prevention Advisory Committee (LEPAC) ________________________________ * Give your society or organization a voice in public policy. Join AIBS today. * Become an advocate for science, visit the AIBS Legislative Action Center. The American Institute of Biological Sciences is a nonprofit 501(c)(3) scientific association dedicated to advancing biological research and education for the welfare of society. AIBS works to ensure that the public, legislators, funders, and the community of biologists have access to and use information that will guide them in making informed decisions about matters that require biological knowledge. The organization does this through informing decisions by providing peer-reviewed or vetted information about the biology field and profession and by catalyzing action through building the capacity and the leadership of the community to address matters of common concern. Founded in 1947 as a part of the National Academy of Sciences, AIBS became an independent, member-governed organization in the 1950s. Today, Today, AIBS has over 140 member organizations and has a Public Policy Office in Washington, DC. Its staff members work to achieve its mission by publishing the peer-reviewed journal BioScience, by providing scientific peer-review and advisory services to government agencies and other clients, and by collaborating with scientific organizations to advance public policy, education, and the public understanding of science. Website: www.aibs.org. You received this message because you or your organization have interacted with one of our programs or initiatives. Our mailing address is: American Institute of Biological Science 950 Herndon Parkway Suite 450 Herndon, VA 20170 Copyright (C) 2020 American Institute of Biological Sciences All rights reserved. -------------- next part -------------- An HTML attachment was scrubbed... URL: From emily.braker at colorado.edu Tue Nov 10 10:22:15 2020 From: emily.braker at colorado.edu (Emily M. Braker) Date: Tue, 10 Nov 2020 15:22:15 +0000 Subject: [Nhcoll-l] Webinar Reminder - TODAY - Introduction to Arctos for Bird & Egg/Nest Collections Message-ID: Please join us for an introduction to managing Ornithology Collections in Arctos. Abstract: Arctos serves data on over 467,000 ornithological records from 29 collections, including bird specimens, observations, eggs, nests, and media (photographs, audio recordings). Data sets range from 6 to over 191,000 records, making Arctos attractive for both small and large collections. The oldest specimen is a skin from 1830, and representation is broad both in taxonomic and geographic scope. This webinar will highlight some of the key features of Arctos for managing ornithological data, including: shared localities and georeferences, relationships between different types of specimens (e.g., host-parasite, predator-prey), transactions (accessions, loans, permits), object tracking, and projects/publications for citing usage in research, teaching, and art. We also will illustrate how media are linked to bird and egg/nest specimens in Arctos, and will showcase how these media have been used in impactful ways. Finally, we will discuss how Arctos handles bird observational data, a unique feature for a museum collection management system. Presenters: Carla Cicero (Staff Curator of Birds, Museum of Vertebrate Zoology) and Elizabeth Wommack (Curator and Collections Manager of Vertebrates, University of Wyoming Museum of Vertebrates) When: Tuesday, November 10, 2020 at 3:00pm ET/1:00pm MT (19:00 UTC) Where: https://cuboulder.zoom.us/j/92226989182 Can't Make It?: View archived recordings here https://arctosdb.org/learn/webinars/ Emily Braker Vertebrate Collections Manager, Zoology Section University of Colorado Museum of Natural History 265 UCB, Bruce Curtis Building Boulder, CO 80309-0218 Phone: 303-492-8466 http://www.colorado.edu/cumuseum/research-collections/vertebrates -------------- next part -------------- An HTML attachment was scrubbed... URL: From soledad.esteban at transmittingscience.org Wed Nov 11 03:29:25 2020 From: soledad.esteban at transmittingscience.org (soledad.esteban at transmittingscience.org) Date: Wed, 11 Nov 2020 09:29:25 +0100 Subject: [Nhcoll-l] Courses on scientific illustration and 3D modelling Message-ID: <20201111092925.Horde.stIErLBzwJpIX6eVsyn-mpj@www.transmittingscience.com> Dear Colleagues, Transmitting Science is offering 3 different courses related to scientific illustration, all of them live online: Introduction to Organic 3D Modelling, January 11th-22nd, 2021. Course webpage https://www.transmittingscience.com/courses/scientific-communication/introduction-to-organic-3d-modelling/ Naturalistic and Scientific Illustration 1: Traditional Techniques, January 25th-29th, 2021. Course webpage https://www.transmittingscience.com/courses/scientific-communication/naturalistic-and-scientific-illustration/ Naturalistic and Scientific Illustration 2: Digital techniques, February 1st-3rd, 2021. Course webpage https://www.transmittingscience.com/courses/scientific-communication/naturalistic-and-scientific-illustration-2/ If you have any question, please write to courses at transmittingscience.com Best regards Sole From dtrock at calacademy.org Wed Nov 11 14:42:41 2020 From: dtrock at calacademy.org (Debra Trock) Date: Wed, 11 Nov 2020 13:42:41 -0600 Subject: [Nhcoll-l] cryo storage Message-ID: Have folks been giving a thought to the fact that if the Pfizer COVID-19 vaccine requires ultra cold storage, there could be a shortage of liquid nitrogen and ultracold freezers on the horizon? Are their contingency plans for the cryo collections in museums around the country - in fact the world? Cheers, Deb -------------- next part -------------- An HTML attachment was scrubbed... URL: From cwthomp at umich.edu Wed Nov 11 15:08:37 2020 From: cwthomp at umich.edu (Cody Thompson) Date: Wed, 11 Nov 2020 15:08:37 -0500 Subject: [Nhcoll-l] cryo storage In-Reply-To: References: Message-ID: Debra: That is a good question! I suspect it depends on plant capacity if you are reliant on a vendor. We use Messer as our bulk LN2 vendor - they do a lot of work with medical facilities - and I have not received any information from them regarding this particular issue. However, I definitely will be asking that question. Thanks, Cody Cody W. Thompson, PhD Mammal Collections Manager & Assistant Research Scientist University of Michigan Museum of Zoology 3600 Varsity Drive Ann Arbor, Michigan 48108 Office: (734) 615-2810 Fax: (734) 763-4080 Email: cwthomp at umich.edu Website: codythompson.org *In response to the ongoing events associated with COVID-19, the University of Michigan Museum of Zoology has suspended non-essential operations. This includes access to the collections via scientific visits or outgoing loans. Please do not ship collections (gifts, exchange, loan returns, etc.) to the museum at this time.* On Wed, Nov 11, 2020 at 2:51 PM Debra Trock wrote: > Have folks been giving a thought to the fact that if the Pfizer COVID-19 > vaccine requires ultra cold storage, there could be a shortage of liquid > nitrogen and ultracold freezers on the horizon? Are their contingency > plans for the cryo collections in museums around the country - in fact the > world? > > Cheers, > Deb > > _______________________________________________ > Nhcoll-l mailing list > Nhcoll-l at mailman.yale.edu > https://mailman.yale.edu/mailman/listinfo/nhcoll-l > > _______________________________________________ > NHCOLL-L is brought to you by the Society for the Preservation of > Natural History Collections (SPNHC), an international society whose > mission is to improve the preservation, conservation and management of > natural history collections to ensure their continuing value to > society. See http://www.spnhc.org for membership information. > Advertising on NH-COLL-L is inappropriate. > -------------- next part -------------- An HTML attachment was scrubbed... URL: From eliswyman at gmail.com Wed Nov 11 15:23:55 2020 From: eliswyman at gmail.com (Eli Wyman) Date: Wed, 11 Nov 2020 15:23:55 -0500 Subject: [Nhcoll-l] cryo storage In-Reply-To: References: Message-ID: We (at Princeton University) were warned months ago that there is likely going to be a shortage of -80 freezers for this very reason. Eli On Wed, Nov 11, 2020 at 3:09 PM Cody Thompson wrote: > Debra: > > That is a good question! I suspect it depends on plant capacity if you > are reliant on a vendor. We use Messer as our bulk LN2 vendor - they do a > lot of work with medical facilities - and I have not received any > information from them regarding this particular issue. However, I > definitely will be asking that question. > > Thanks, > Cody > > Cody W. Thompson, PhD > Mammal Collections Manager > & Assistant Research Scientist > University of Michigan > Museum of Zoology > 3600 Varsity Drive > Ann Arbor, Michigan 48108 > Office: (734) 615-2810 > Fax: (734) 763-4080 > Email: cwthomp at umich.edu > Website: codythompson.org > > *In response to the ongoing events associated with COVID-19, the > University of Michigan Museum of Zoology has suspended non-essential > operations. This includes access to the collections via scientific visits > or outgoing loans. Please do not ship collections (gifts, exchange, loan > returns, etc.) to the museum at this time.* > > > On Wed, Nov 11, 2020 at 2:51 PM Debra Trock wrote: > >> Have folks been giving a thought to the fact that if the Pfizer COVID-19 >> vaccine requires ultra cold storage, there could be a shortage of liquid >> nitrogen and ultracold freezers on the horizon? Are their contingency >> plans for the cryo collections in museums around the country - in fact the >> world? >> >> Cheers, >> Deb >> >> _______________________________________________ >> Nhcoll-l mailing list >> Nhcoll-l at mailman.yale.edu >> https://mailman.yale.edu/mailman/listinfo/nhcoll-l >> >> _______________________________________________ >> NHCOLL-L is brought to you by the Society for the Preservation of >> Natural History Collections (SPNHC), an international society whose >> mission is to improve the preservation, conservation and management of >> natural history collections to ensure their continuing value to >> society. See http://www.spnhc.org for membership information. >> Advertising on NH-COLL-L is inappropriate. >> > _______________________________________________ > Nhcoll-l mailing list > Nhcoll-l at mailman.yale.edu > https://mailman.yale.edu/mailman/listinfo/nhcoll-l > > _______________________________________________ > NHCOLL-L is brought to you by the Society for the Preservation of > Natural History Collections (SPNHC), an international society whose > mission is to improve the preservation, conservation and management of > natural history collections to ensure their continuing value to > society. See http://www.spnhc.org for membership information. > Advertising on NH-COLL-L is inappropriate. > -------------- next part -------------- An HTML attachment was scrubbed... URL: From rw at protectheritage.com Wed Nov 11 15:37:53 2020 From: rw at protectheritage.com (Robert Waller) Date: Wed, 11 Nov 2020 20:37:53 +0000 Subject: [Nhcoll-l] cryo storage In-Reply-To: References: Message-ID: Great catch Deb and Cody, Repair responses and contingency plans for failures may also be challenged so this would be a good time to review those plans and procedures and agreements with supply companies. Rob From: Nhcoll-l On Behalf Of Eli Wyman Sent: Wednesday, November 11, 2020 3:24 PM To: Cody Thompson Cc: nhcoll Subject: Re: [Nhcoll-l] cryo storage We (at Princeton University) were warned months ago that there is likely going to be a shortage of -80 freezers for this very reason. Eli On Wed, Nov 11, 2020 at 3:09 PM Cody Thompson > wrote: Debra: That is a good question! I suspect it depends on plant capacity if you are reliant on a vendor. We use Messer as our bulk LN2 vendor - they do a lot of work with medical facilities - and I have not received any information from them regarding this particular issue. However, I definitely will be asking that question. Thanks, Cody Cody W. Thompson, PhD Mammal Collections Manager & Assistant Research Scientist University of Michigan Museum of Zoology 3600 Varsity Drive Ann Arbor, Michigan 48108 Office: (734) 615-2810 Fax: (734) 763-4080 Email: cwthomp at umich.edu Website: codythompson.org In response to the ongoing events associated with COVID-19, the University of Michigan Museum of Zoology has suspended non-essential operations. This includes access to the collections via scientific visits or outgoing loans. Please do not ship collections (gifts, exchange, loan returns, etc.) to the museum at this time. On Wed, Nov 11, 2020 at 2:51 PM Debra Trock > wrote: Have folks been giving a thought to the fact that if the Pfizer COVID-19 vaccine requires ultra cold storage, there could be a shortage of liquid nitrogen and ultracold freezers on the horizon? Are their contingency plans for the cryo collections in museums around the country - in fact the world? Cheers, Deb _______________________________________________ Nhcoll-l mailing list Nhcoll-l at mailman.yale.edu https://mailman.yale.edu/mailman/listinfo/nhcoll-l _______________________________________________ NHCOLL-L is brought to you by the Society for the Preservation of Natural History Collections (SPNHC), an international society whose mission is to improve the preservation, conservation and management of natural history collections to ensure their continuing value to society. See http://www.spnhc.org for membership information. Advertising on NH-COLL-L is inappropriate. _______________________________________________ Nhcoll-l mailing list Nhcoll-l at mailman.yale.edu https://mailman.yale.edu/mailman/listinfo/nhcoll-l _______________________________________________ NHCOLL-L is brought to you by the Society for the Preservation of Natural History Collections (SPNHC), an international society whose mission is to improve the preservation, conservation and management of natural history collections to ensure their continuing value to society. See http://www.spnhc.org for membership information. Advertising on NH-COLL-L is inappropriate. -------------- next part -------------- An HTML attachment was scrubbed... URL: From jldunnum at unm.edu Wed Nov 11 15:41:04 2020 From: jldunnum at unm.edu (Jonathan Dunnum) Date: Wed, 11 Nov 2020 20:41:04 +0000 Subject: [Nhcoll-l] cryo storage In-Reply-To: References: , Message-ID: We have been approached about potential storage of vaccine in our Division of Genomic Resources at the Museum of Southwestern Biology. I think health departments in each state are being asked to identify institutions with ultracold storage capacity. ______________________________________________________________ Jonathan L. Dunnum Ph.D. Senior Collection Manager Division of Mammals, Museum of Southwestern Biology University of New Mexico Albuquerque, NM 87131 (505) 277-9262 Fax (505) 277-1351 MSB Mammals website: http://www.msb.unm.edu/mammals/index.html Facebook: http://www.facebook.com/MSBDivisionofMammals Shipping Address: Museum of Southwestern Biology Division of Mammals University of New Mexico CERIA Bldg 83, Room 204 Albuquerque, NM 87131 ________________________________ From: Nhcoll-l on behalf of Robert Waller Sent: Wednesday, November 11, 2020 1:37 PM To: Eli Wyman ; Cody Thompson Cc: nhcoll Subject: Re: [Nhcoll-l] cryo storage [EXTERNAL] Great catch Deb and Cody, Repair responses and contingency plans for failures may also be challenged so this would be a good time to review those plans and procedures and agreements with supply companies. Rob From: Nhcoll-l On Behalf Of Eli Wyman Sent: Wednesday, November 11, 2020 3:24 PM To: Cody Thompson Cc: nhcoll Subject: Re: [Nhcoll-l] cryo storage We (at Princeton University) were warned months ago that there is likely going to be a shortage of -80 freezers for this very reason. Eli On Wed, Nov 11, 2020 at 3:09 PM Cody Thompson > wrote: Debra: That is a good question! I suspect it depends on plant capacity if you are reliant on a vendor. We use Messer as our bulk LN2 vendor - they do a lot of work with medical facilities - and I have not received any information from them regarding this particular issue. However, I definitely will be asking that question. Thanks, Cody Cody W. Thompson, PhD Mammal Collections Manager & Assistant Research Scientist University of Michigan Museum of Zoology 3600 Varsity Drive Ann Arbor, Michigan 48108 Office: (734) 615-2810 Fax: (734) 763-4080 Email: cwthomp at umich.edu Website: codythompson.org In response to the ongoing events associated with COVID-19, the University of Michigan Museum of Zoology has suspended non-essential operations. This includes access to the collections via scientific visits or outgoing loans. Please do not ship collections (gifts, exchange, loan returns, etc.) to the museum at this time. On Wed, Nov 11, 2020 at 2:51 PM Debra Trock > wrote: Have folks been giving a thought to the fact that if the Pfizer COVID-19 vaccine requires ultra cold storage, there could be a shortage of liquid nitrogen and ultracold freezers on the horizon? Are their contingency plans for the cryo collections in museums around the country - in fact the world? Cheers, Deb _______________________________________________ Nhcoll-l mailing list Nhcoll-l at mailman.yale.edu https://mailman.yale.edu/mailman/listinfo/nhcoll-l _______________________________________________ NHCOLL-L is brought to you by the Society for the Preservation of Natural History Collections (SPNHC), an international society whose mission is to improve the preservation, conservation and management of natural history collections to ensure their continuing value to society. See http://www.spnhc.org for membership information. Advertising on NH-COLL-L is inappropriate. _______________________________________________ Nhcoll-l mailing list Nhcoll-l at mailman.yale.edu https://mailman.yale.edu/mailman/listinfo/nhcoll-l _______________________________________________ NHCOLL-L is brought to you by the Society for the Preservation of Natural History Collections (SPNHC), an international society whose mission is to improve the preservation, conservation and management of natural history collections to ensure their continuing value to society. See http://www.spnhc.org for membership information. Advertising on NH-COLL-L is inappropriate. -------------- next part -------------- An HTML attachment was scrubbed... URL: From cwthomp at umich.edu Wed Nov 11 15:43:03 2020 From: cwthomp at umich.edu (Cody Thompson) Date: Wed, 11 Nov 2020 15:43:03 -0500 Subject: [Nhcoll-l] cryo storage In-Reply-To: References: Message-ID: I was just asked that same question... Cody W. Thompson, PhD Mammal Collections Manager & Assistant Research Scientist University of Michigan Museum of Zoology 3600 Varsity Drive Ann Arbor, Michigan 48108 Office: (734) 615-2810 Fax: (734) 763-4080 Email: cwthomp at umich.edu Website: codythompson.org *In response to the ongoing events associated with COVID-19, the University of Michigan Museum of Zoology has suspended non-essential operations. This includes access to the collections via scientific visits or outgoing loans. Please do not ship collections (gifts, exchange, loan returns, etc.) to the museum at this time.* On Wed, Nov 11, 2020 at 3:41 PM Jonathan Dunnum wrote: > We have been approached about potential storage of vaccine in our Division > of Genomic Resources at the Museum of Southwestern Biology. I think health > departments in each state are being asked to identify institutions with > ultracold storage capacity. > > ______________________________________________________________ > > Jonathan L. Dunnum Ph.D. > Senior Collection Manager > Division of Mammals, Museum of Southwestern Biology > University of New Mexico > Albuquerque, NM 87131 > (505) 277-9262 > Fax (505) 277-1351 > > MSB Mammals website: http://www.msb.unm.edu/mammals/index.html > Facebook: http://www.facebook.com/MSBDivisionofMammals > > Shipping Address: > Museum of Southwestern Biology > Division of Mammals > University of New Mexico > CERIA Bldg 83, Room 204 > Albuquerque, NM 87131 > ------------------------------ > *From:* Nhcoll-l on behalf of Robert > Waller > *Sent:* Wednesday, November 11, 2020 1:37 PM > *To:* Eli Wyman ; Cody Thompson > *Cc:* nhcoll > *Subject:* Re: [Nhcoll-l] cryo storage > > > * [EXTERNAL]* > > Great catch Deb and Cody, > > Repair responses and contingency plans for failures may also be challenged > so this would be a good time to review those plans and procedures and > agreements with supply companies. > > Rob > > > > *From:* Nhcoll-l * On Behalf Of *Eli > Wyman > *Sent:* Wednesday, November 11, 2020 3:24 PM > *To:* Cody Thompson > *Cc:* nhcoll > *Subject:* Re: [Nhcoll-l] cryo storage > > > > We (at Princeton University) were warned months ago that there is likely > going to be a shortage of -80 freezers for this very reason. > > > > > > Eli > > > > On Wed, Nov 11, 2020 at 3:09 PM Cody Thompson wrote: > > Debra: > > That is a good question! I suspect it depends on plant capacity if you > are reliant on a vendor. We use Messer as our bulk LN2 vendor - they do a > lot of work with medical facilities - and I have not received any > information from them regarding this particular issue. However, I > definitely will be asking that question. > > > > Thanks, > > Cody > > > Cody W. Thompson, PhD > > Mammal Collections Manager > > & Assistant Research Scientist > > University of Michigan > > Museum of Zoology > > 3600 Varsity Drive > > Ann Arbor, Michigan 48108 > > Office: (734) 615-2810 > > Fax: (734) 763-4080 > > Email: cwthomp at umich.edu > > Website: codythompson.org > > > > *In response to the ongoing events associated with COVID-19, the > University of Michigan Museum of Zoology has suspended non-essential > operations. This includes access to the collections via scientific visits > or outgoing loans. Please do not ship collections (gifts, exchange, loan > returns, etc.) to the museum at this time.* > > > > > > On Wed, Nov 11, 2020 at 2:51 PM Debra Trock wrote: > > Have folks been giving a thought to the fact that if the Pfizer COVID-19 > vaccine requires ultra cold storage, there could be a shortage of liquid > nitrogen and ultracold freezers on the horizon? Are their contingency > plans for the cryo collections in museums around the country - in fact the > world? > > > > Cheers, > > Deb > > > > _______________________________________________ > Nhcoll-l mailing list > Nhcoll-l at mailman.yale.edu > https://mailman.yale.edu/mailman/listinfo/nhcoll-l > > _______________________________________________ > NHCOLL-L is brought to you by the Society for the Preservation of > Natural History Collections (SPNHC), an international society whose > mission is to improve the preservation, conservation and management of > natural history collections to ensure their continuing value to > society. See http://www.spnhc.org for membership information. > Advertising on NH-COLL-L is inappropriate. > > _______________________________________________ > Nhcoll-l mailing list > Nhcoll-l at mailman.yale.edu > https://mailman.yale.edu/mailman/listinfo/nhcoll-l > > _______________________________________________ > NHCOLL-L is brought to you by the Society for the Preservation of > Natural History Collections (SPNHC), an international society whose > mission is to improve the preservation, conservation and management of > natural history collections to ensure their continuing value to > society. See http://www.spnhc.org for membership information. > Advertising on NH-COLL-L is inappropriate. > > -------------- next part -------------- An HTML attachment was scrubbed... URL: From jbandjb at live.com Wed Nov 11 16:04:13 2020 From: jbandjb at live.com (James Bryant) Date: Wed, 11 Nov 2020 14:04:13 -0700 Subject: [Nhcoll-l] cryo storage In-Reply-To: References: Message-ID: Museums should consider this an opportunity to both demonstrate existing capacity for this kind of emergency, and a chance to increase capacity. Storing vaccine will be an extended - but likely not a permanent - obligation. Scaling up facilities and equipment to support vaccine distribution efforts could produce a useful legacy for biodiversity holdings. James Bryant SOJOURN Science - Nature - Education Santa Fe, NM https://www.linkedin.com/in/james-bryant-0598a940/ > On Nov 11, 2020, at 1:43 PM, Cody Thompson wrote: > > I was just asked that same question... > > > Cody W. Thompson, PhD > Mammal Collections Manager > & Assistant Research Scientist > University of Michigan > Museum of Zoology > 3600 Varsity Drive > Ann Arbor, Michigan 48108 > Office: (734) 615-2810 > Fax: (734) 763-4080 > Email: cwthomp at umich.edu > Website: codythompson.org > > In response to the ongoing events associated with COVID-19, the University of Michigan Museum of Zoology has suspended non-essential operations. This includes access to the collections via scientific visits or outgoing loans. Please do not ship collections (gifts, exchange, loan returns, etc.) to the museum at this time. > > > > On Wed, Nov 11, 2020 at 3:41 PM Jonathan Dunnum > wrote: > We have been approached about potential storage of vaccine in our Division of Genomic Resources at the Museum of Southwestern Biology. I think health departments in each state are being asked to identify institutions with ultracold storage capacity. > > ______________________________________________________________ > > Jonathan L. Dunnum Ph.D. > Senior Collection Manager > Division of Mammals, Museum of Southwestern Biology > University of New Mexico > Albuquerque, NM 87131 > (505) 277-9262 > Fax (505) 277-1351 > > MSB Mammals website: http://www.msb.unm.edu/mammals/index.html > Facebook: http://www.facebook.com/MSBDivisionofMammals > > Shipping Address: > Museum of Southwestern Biology > Division of Mammals > University of New Mexico > CERIA Bldg 83, Room 204 > Albuquerque, NM 87131 > From: Nhcoll-l > on behalf of Robert Waller > > Sent: Wednesday, November 11, 2020 1:37 PM > To: Eli Wyman >; Cody Thompson > > Cc: nhcoll > > Subject: Re: [Nhcoll-l] cryo storage > > [EXTERNAL] > > Great catch Deb and Cody, > > Repair responses and contingency plans for failures may also be challenged so this would be a good time to review those plans and procedures and agreements with supply companies. > > Rob > > > From: Nhcoll-l > On Behalf Of Eli Wyman > Sent: Wednesday, November 11, 2020 3:24 PM > To: Cody Thompson > > Cc: nhcoll > > Subject: Re: [Nhcoll-l] cryo storage > > > We (at Princeton University) were warned months ago that there is likely going to be a shortage of -80 freezers for this very reason. > > > > Eli > > > On Wed, Nov 11, 2020 at 3:09 PM Cody Thompson > wrote: > > Debra: > > That is a good question! I suspect it depends on plant capacity if you are reliant on a vendor. We use Messer as our bulk LN2 vendor - they do a lot of work with medical facilities - and I have not received any information from them regarding this particular issue. However, I definitely will be asking that question. > > > Thanks, > > Cody > > > > Cody W. Thompson, PhD > > Mammal Collections Manager > > & Assistant Research Scientist > > University of Michigan > > Museum of Zoology > > 3600 Varsity Drive > > Ann Arbor, Michigan 48108 > > Office: (734) 615-2810 > > Fax: (734) 763-4080 > > Email: cwthomp at umich.edu > Website: codythompson.org > > In response to the ongoing events associated with COVID-19, the University of Michigan Museum of Zoology has suspended non-essential operations. This includes access to the collections via scientific visits or outgoing loans. Please do not ship collections (gifts, exchange, loan returns, etc.) to the museum at this time. > > > > On Wed, Nov 11, 2020 at 2:51 PM Debra Trock > wrote: > > Have folks been giving a thought to the fact that if the Pfizer COVID-19 vaccine requires ultra cold storage, there could be a shortage of liquid nitrogen and ultracold freezers on the horizon? Are their contingency plans for the cryo collections in museums around the country - in fact the world? > > > Cheers, > > Deb > > > _______________________________________________ > Nhcoll-l mailing list > Nhcoll-l at mailman.yale.edu > https://mailman.yale.edu/mailman/listinfo/nhcoll-l > > _______________________________________________ > NHCOLL-L is brought to you by the Society for the Preservation of > Natural History Collections (SPNHC), an international society whose > mission is to improve the preservation, conservation and management of > natural history collections to ensure their continuing value to > society. See http://www.spnhc.org for membership information. > Advertising on NH-COLL-L is inappropriate. > > _______________________________________________ > Nhcoll-l mailing list > Nhcoll-l at mailman.yale.edu > https://mailman.yale.edu/mailman/listinfo/nhcoll-l > > _______________________________________________ > NHCOLL-L is brought to you by the Society for the Preservation of > Natural History Collections (SPNHC), an international society whose > mission is to improve the preservation, conservation and management of > natural history collections to ensure their continuing value to > society. See http://www.spnhc.org for membership information. > Advertising on NH-COLL-L is inappropriate. > > _______________________________________________ > Nhcoll-l mailing list > Nhcoll-l at mailman.yale.edu > https://mailman.yale.edu/mailman/listinfo/nhcoll-l > > _______________________________________________ > NHCOLL-L is brought to you by the Society for the Preservation of > Natural History Collections (SPNHC), an international society whose > mission is to improve the preservation, conservation and management of > natural history collections to ensure their continuing value to > society. See http://www.spnhc.org for membership information. > Advertising on NH-COLL-L is inappropriate. -------------- next part -------------- An HTML attachment was scrubbed... URL: From jldunnum at unm.edu Wed Nov 11 16:28:48 2020 From: jldunnum at unm.edu (Jonathan Dunnum) Date: Wed, 11 Nov 2020 21:28:48 +0000 Subject: [Nhcoll-l] cryo storage In-Reply-To: References: , Message-ID: Absolutely! ______________________________________________________________ Jonathan L. Dunnum Ph.D. Senior Collection Manager Division of Mammals, Museum of Southwestern Biology University of New Mexico Albuquerque, NM 87131 (505) 277-9262 Fax (505) 277-1351 MSB Mammals website: http://www.msb.unm.edu/mammals/index.html Facebook: http://www.facebook.com/MSBDivisionofMammals Shipping Address: Museum of Southwestern Biology Division of Mammals University of New Mexico CERIA Bldg 83, Room 204 Albuquerque, NM 87131 ________________________________ From: James Bryant Sent: Wednesday, November 11, 2020 2:04 PM To: Cody Thompson Cc: Jonathan Dunnum ; nhcoll Subject: Re: [Nhcoll-l] cryo storage [EXTERNAL] Museums should consider this an opportunity to both demonstrate existing capacity for this kind of emergency, and a chance to increase capacity. Storing vaccine will be an extended - but likely not a permanent - obligation. Scaling up facilities and equipment to support vaccine distribution efforts could produce a useful legacy for biodiversity holdings. James Bryant SOJOURN Science - Nature - Education Santa Fe, NM https://www.linkedin.com/in/james-bryant-0598a940/ On Nov 11, 2020, at 1:43 PM, Cody Thompson > wrote: I was just asked that same question... Cody W. Thompson, PhD Mammal Collections Manager & Assistant Research Scientist University of Michigan Museum of Zoology 3600 Varsity Drive Ann Arbor, Michigan 48108 Office: (734) 615-2810 Fax: (734) 763-4080 Email: cwthomp at umich.edu Website: codythompson.org In response to the ongoing events associated with COVID-19, the University of Michigan Museum of Zoology has suspended non-essential operations. This includes access to the collections via scientific visits or outgoing loans. Please do not ship collections (gifts, exchange, loan returns, etc.) to the museum at this time. On Wed, Nov 11, 2020 at 3:41 PM Jonathan Dunnum > wrote: We have been approached about potential storage of vaccine in our Division of Genomic Resources at the Museum of Southwestern Biology. I think health departments in each state are being asked to identify institutions with ultracold storage capacity. ______________________________________________________________ Jonathan L. Dunnum Ph.D. Senior Collection Manager Division of Mammals, Museum of Southwestern Biology University of New Mexico Albuquerque, NM 87131 (505) 277-9262 Fax (505) 277-1351 MSB Mammals website: http://www.msb.unm.edu/mammals/index.html Facebook: http://www.facebook.com/MSBDivisionofMammals Shipping Address: Museum of Southwestern Biology Division of Mammals University of New Mexico CERIA Bldg 83, Room 204 Albuquerque, NM 87131 ________________________________ From: Nhcoll-l > on behalf of Robert Waller > Sent: Wednesday, November 11, 2020 1:37 PM To: Eli Wyman >; Cody Thompson > Cc: nhcoll > Subject: Re: [Nhcoll-l] cryo storage [EXTERNAL] Great catch Deb and Cody, Repair responses and contingency plans for failures may also be challenged so this would be a good time to review those plans and procedures and agreements with supply companies. Rob From: Nhcoll-l > On Behalf Of Eli Wyman Sent: Wednesday, November 11, 2020 3:24 PM To: Cody Thompson > Cc: nhcoll > Subject: Re: [Nhcoll-l] cryo storage We (at Princeton University) were warned months ago that there is likely going to be a shortage of -80 freezers for this very reason. Eli On Wed, Nov 11, 2020 at 3:09 PM Cody Thompson > wrote: Debra: That is a good question! I suspect it depends on plant capacity if you are reliant on a vendor. We use Messer as our bulk LN2 vendor - they do a lot of work with medical facilities - and I have not received any information from them regarding this particular issue. However, I definitely will be asking that question. Thanks, Cody Cody W. Thompson, PhD Mammal Collections Manager & Assistant Research Scientist University of Michigan Museum of Zoology 3600 Varsity Drive Ann Arbor, Michigan 48108 Office: (734) 615-2810 Fax: (734) 763-4080 Email: cwthomp at umich.edu Website: codythompson.org In response to the ongoing events associated with COVID-19, the University of Michigan Museum of Zoology has suspended non-essential operations. This includes access to the collections via scientific visits or outgoing loans. Please do not ship collections (gifts, exchange, loan returns, etc.) to the museum at this time. On Wed, Nov 11, 2020 at 2:51 PM Debra Trock > wrote: Have folks been giving a thought to the fact that if the Pfizer COVID-19 vaccine requires ultra cold storage, there could be a shortage of liquid nitrogen and ultracold freezers on the horizon? Are their contingency plans for the cryo collections in museums around the country - in fact the world? Cheers, Deb _______________________________________________ Nhcoll-l mailing list Nhcoll-l at mailman.yale.edu https://mailman.yale.edu/mailman/listinfo/nhcoll-l _______________________________________________ NHCOLL-L is brought to you by the Society for the Preservation of Natural History Collections (SPNHC), an international society whose mission is to improve the preservation, conservation and management of natural history collections to ensure their continuing value to society. See http://www.spnhc.org for membership information. Advertising on NH-COLL-L is inappropriate. _______________________________________________ Nhcoll-l mailing list Nhcoll-l at mailman.yale.edu https://mailman.yale.edu/mailman/listinfo/nhcoll-l _______________________________________________ NHCOLL-L is brought to you by the Society for the Preservation of Natural History Collections (SPNHC), an international society whose mission is to improve the preservation, conservation and management of natural history collections to ensure their continuing value to society. See http://www.spnhc.org for membership information. Advertising on NH-COLL-L is inappropriate. _______________________________________________ Nhcoll-l mailing list Nhcoll-l at mailman.yale.edu https://mailman.yale.edu/mailman/listinfo/nhcoll-l _______________________________________________ NHCOLL-L is brought to you by the Society for the Preservation of Natural History Collections (SPNHC), an international society whose mission is to improve the preservation, conservation and management of natural history collections to ensure their continuing value to society. See http://www.spnhc.org for membership information. Advertising on NH-COLL-L is inappropriate. -------------- next part -------------- An HTML attachment was scrubbed... URL: From abentley at ku.edu Wed Nov 11 21:13:14 2020 From: abentley at ku.edu (Bentley, Andrew Charles) Date: Thu, 12 Nov 2020 02:13:14 +0000 Subject: [Nhcoll-l] cryo storage In-Reply-To: References: Message-ID: <963B5128-9994-4571-AB08-AFBEAA62F516@ku.edu> This is also a great opportunity for us to make those necessary connections between human diseases and our biological collections ? both tissue and voucher. If you can get these folks into your collections ? even if it just to put vaccine in your freezer ? do not give up the opportunity to advocate for biological collections, the specimens they contain that are vectors for human diseases, and the tissues that can be used to track disease over time. A great resource to point them at is the National Academy report on Biological collections that included recommendations on both biological collections and living collections - https://www.nationalacademies.org/our-work/biological-collections-their-past-present-and-future-contributions-and-options-for-sustaining-them Andy A : A : A : }<(((_?>.,.,.,.}<(((_?>.,.,.,.}<)))_?> V V V Andy Bentley Ichthyology Collection Manager University of Kansas Biodiversity Institute Dyche Hall 1345 Jayhawk Boulevard Lawrence, KS, 66045-7561 USA Tel: (785) 864-3863 Fax: (785) 864-5335 Email: abentley at ku.edu http://ichthyology.biodiversity.ku.edu A : A : A : }<(((_?>.,.,.,.}<(((_?>.,.,.,.}<)))_?> V V V From: Nhcoll-l on behalf of James Bryant Date: Wednesday, November 11, 2020 at 3:04 PM To: Cody Thompson Cc: "nhcoll-l at mailman.yale.edu" Subject: Re: [Nhcoll-l] cryo storage Museums should consider this an opportunity to both demonstrate existing capacity for this kind of emergency, and a chance to increase capacity. Storing vaccine will be an extended - but likely not a permanent - obligation. Scaling up facilities and equipment to support vaccine distribution efforts could produce a useful legacy for biodiversity holdings. James Bryant SOJOURN Science - Nature - Education Santa Fe, NM https://www.linkedin.com/in/james-bryant-0598a940/ On Nov 11, 2020, at 1:43 PM, Cody Thompson > wrote: I was just asked that same question... Cody W. Thompson, PhD Mammal Collections Manager & Assistant Research Scientist University of Michigan Museum of Zoology 3600 Varsity Drive Ann Arbor, Michigan 48108 Office: (734) 615-2810 Fax: (734) 763-4080 Email: cwthomp at umich.edu Website: codythompson.org In response to the ongoing events associated with COVID-19, the University of Michigan Museum of Zoology has suspended non-essential operations. This includes access to the collections via scientific visits or outgoing loans. Please do not ship collections (gifts, exchange, loan returns, etc.) to the museum at this time. On Wed, Nov 11, 2020 at 3:41 PM Jonathan Dunnum > wrote: We have been approached about potential storage of vaccine in our Division of Genomic Resources at the Museum of Southwestern Biology. I think health departments in each state are being asked to identify institutions with ultracold storage capacity. ______________________________________________________________ Jonathan L. Dunnum Ph.D. Senior Collection Manager Division of Mammals, Museum of Southwestern Biology University of New Mexico Albuquerque, NM 87131 (505) 277-9262 Fax (505) 277-1351 MSB Mammals website: http://www.msb.unm.edu/mammals/index.html Facebook: http://www.facebook.com/MSBDivisionofMammals Shipping Address: Museum of Southwestern Biology Division of Mammals University of New Mexico CERIA Bldg 83, Room 204 Albuquerque, NM 87131 ________________________________ From: Nhcoll-l > on behalf of Robert Waller > Sent: Wednesday, November 11, 2020 1:37 PM To: Eli Wyman >; Cody Thompson > Cc: nhcoll > Subject: Re: [Nhcoll-l] cryo storage [EXTERNAL] Great catch Deb and Cody, Repair responses and contingency plans for failures may also be challenged so this would be a good time to review those plans and procedures and agreements with supply companies. Rob From: Nhcoll-l > On Behalf Of Eli Wyman Sent: Wednesday, November 11, 2020 3:24 PM To: Cody Thompson > Cc: nhcoll > Subject: Re: [Nhcoll-l] cryo storage We (at Princeton University) were warned months ago that there is likely going to be a shortage of -80 freezers for this very reason. Eli On Wed, Nov 11, 2020 at 3:09 PM Cody Thompson > wrote: Debra: That is a good question! I suspect it depends on plant capacity if you are reliant on a vendor. We use Messer as our bulk LN2 vendor - they do a lot of work with medical facilities - and I have not received any information from them regarding this particular issue. However, I definitely will be asking that question. Thanks, Cody Cody W. Thompson, PhD Mammal Collections Manager & Assistant Research Scientist University of Michigan Museum of Zoology 3600 Varsity Drive Ann Arbor, Michigan 48108 Office: (734) 615-2810 Fax: (734) 763-4080 Email: cwthomp at umich.edu Website: codythompson.org In response to the ongoing events associated with COVID-19, the University of Michigan Museum of Zoology has suspended non-essential operations. This includes access to the collections via scientific visits or outgoing loans. Please do not ship collections (gifts, exchange, loan returns, etc.) to the museum at this time. On Wed, Nov 11, 2020 at 2:51 PM Debra Trock > wrote: Have folks been giving a thought to the fact that if the Pfizer COVID-19 vaccine requires ultra cold storage, there could be a shortage of liquid nitrogen and ultracold freezers on the horizon? Are their contingency plans for the cryo collections in museums around the country - in fact the world? Cheers, Deb _______________________________________________ Nhcoll-l mailing list Nhcoll-l at mailman.yale.edu https://mailman.yale.edu/mailman/listinfo/nhcoll-l _______________________________________________ NHCOLL-L is brought to you by the Society for the Preservation of Natural History Collections (SPNHC), an international society whose mission is to improve the preservation, conservation and management of natural history collections to ensure their continuing value to society. See http://www.spnhc.org for membership information. Advertising on NH-COLL-L is inappropriate. _______________________________________________ Nhcoll-l mailing list Nhcoll-l at mailman.yale.edu https://mailman.yale.edu/mailman/listinfo/nhcoll-l _______________________________________________ NHCOLL-L is brought to you by the Society for the Preservation of Natural History Collections (SPNHC), an international society whose mission is to improve the preservation, conservation and management of natural history collections to ensure their continuing value to society. See http://www.spnhc.org for membership information. Advertising on NH-COLL-L is inappropriate. _______________________________________________ Nhcoll-l mailing list Nhcoll-l at mailman.yale.edu https://mailman.yale.edu/mailman/listinfo/nhcoll-l _______________________________________________ NHCOLL-L is brought to you by the Society for the Preservation of Natural History Collections (SPNHC), an international society whose mission is to improve the preservation, conservation and management of natural history collections to ensure their continuing value to society. See http://www.spnhc.org for membership information. Advertising on NH-COLL-L is inappropriate. -------------- next part -------------- An HTML attachment was scrubbed... URL: From jbandjb at live.com Wed Nov 11 22:52:45 2020 From: jbandjb at live.com (James Bryant) Date: Wed, 11 Nov 2020 20:52:45 -0700 Subject: [Nhcoll-l] cryo storage In-Reply-To: <963B5128-9994-4571-AB08-AFBEAA62F516@ku.edu> References: <963B5128-9994-4571-AB08-AFBEAA62F516@ku.edu> Message-ID: Andy: You are totally correct. This may be the best opportunity ever to make cryo-collections relevant. James Bryant SOJOURN Science - Nature - Education Santa Fe, NM https://www.linkedin.com/in/james-bryant-0598a940/ > On Nov 11, 2020, at 7:13 PM, Bentley, Andrew Charles wrote: > > <>This is also a great opportunity for us to make those necessary connections between human diseases and our biological collections ? both tissue and voucher. If you can get these folks into your collections ? even if it just to put vaccine in your freezer ? do not give up the opportunity to advocate for biological collections, the specimens they contain that are vectors for human diseases, and the tissues that can be used to track disease over time. A great resource to point them at is the National Academy report on Biological collections that included recommendations on both biological collections and living collections -https://www.nationalacademies.org/our-work/biological-collections-their-past-present-and-future-contributions-and-options-for-sustaining-them > > Andy > > A : A : A : > }<(((_?>.,.,.,.}<(((_?>.,.,.,.}<)))_?> > V V V > Andy Bentley > Ichthyology Collection Manager > University of Kansas > Biodiversity Institute > Dyche Hall > 1345 Jayhawk Boulevard > Lawrence, KS, 66045-7561 > USA > > Tel: (785) 864-3863 > Fax: (785) 864-5335 > Email: abentley at ku.edu > http://ichthyology.biodiversity.ku.edu > > A : A : A : > }<(((_?>.,.,.,.}<(((_?>.,.,.,.}<)))_?> > V V V > > > From: Nhcoll-l on behalf of James Bryant > Date: Wednesday, November 11, 2020 at 3:04 PM > To: Cody Thompson > Cc: "nhcoll-l at mailman.yale.edu" > Subject: Re: [Nhcoll-l] cryo storage > > Museums should consider this an opportunity to both demonstrate existing capacity for this kind of emergency, and a chance to increase capacity. Storing vaccine will be an extended - but likely not a permanent - obligation. Scaling up facilities and equipment to support vaccine distribution efforts could produce a useful legacy for biodiversity holdings. > > James Bryant > SOJOURN Science - Nature - Education > Santa Fe, NM > https://www.linkedin.com/in/james-bryant-0598a940/ > > >> On Nov 11, 2020, at 1:43 PM, Cody Thompson > wrote: >> >> I was just asked that same question... >> >> >> Cody W. Thompson, PhD >> Mammal Collections Manager >> & Assistant Research Scientist >> University of Michigan >> Museum of Zoology >> 3600 Varsity Drive >> Ann Arbor, Michigan 48108 >> Office: (734) 615-2810 >> Fax: (734) 763-4080 >> Email: cwthomp at umich.edu >> Website: codythompson.org >> >> In response to the ongoing events associated with COVID-19, the University of Michigan Museum of Zoology has suspended non-essential operations. This includes access to the collections via scientific visits or outgoing loans. Please do not ship collections (gifts, exchange, loan returns, etc.) to the museum at this time. >> >> >> On Wed, Nov 11, 2020 at 3:41 PM Jonathan Dunnum > wrote: >>> We have been approached about potential storage of vaccine in our Division of Genomic Resources at the Museum of Southwestern Biology. I think health departments in each state are being asked to identify institutions with ultracold storage capacity. >>> >>> ______________________________________________________________ >>> >>> Jonathan L. Dunnum Ph.D. >>> Senior Collection Manager >>> Division of Mammals, Museum of Southwestern Biology >>> University of New Mexico >>> Albuquerque, NM 87131 >>> (505) 277-9262 >>> Fax (505) 277-1351 >>> >>> MSB Mammals website: http://www.msb.unm.edu/mammals/index.html >>> Facebook: http://www.facebook.com/MSBDivisionofMammals >>> >>> Shipping Address: >>> Museum of Southwestern Biology >>> Division of Mammals >>> University of New Mexico >>> CERIA Bldg 83, Room 204 >>> Albuquerque, NM 87131 >>> From: Nhcoll-l > on behalf of Robert Waller > >>> Sent: Wednesday, November 11, 2020 1:37 PM >>> To: Eli Wyman >; Cody Thompson > >>> Cc: nhcoll > >>> Subject: Re: [Nhcoll-l] cryo storage >>> >>> [EXTERNAL] >>> Great catch Deb and Cody, >>> Repair responses and contingency plans for failures may also be challenged so this would be a good time to review those plans and procedures and agreements with supply companies. >>> Rob >>> >>> From: Nhcoll-l > On Behalf Of Eli Wyman >>> Sent: Wednesday, November 11, 2020 3:24 PM >>> To: Cody Thompson > >>> Cc: nhcoll > >>> Subject: Re: [Nhcoll-l] cryo storage >>> >>> We (at Princeton University) were warned months ago that there is likely going to be a shortage of -80 freezers for this very reason. >>> >>> >>> Eli >>> >>> On Wed, Nov 11, 2020 at 3:09 PM Cody Thompson > wrote: >>>> Debra: >>>> >>>> That is a good question! I suspect it depends on plant capacity if you are reliant on a vendor. We use Messer as our bulk LN2 vendor - they do a lot of work with medical facilities - and I have not received any information from them regarding this particular issue. However, I definitely will be asking that question. >>>> >>>> Thanks, >>>> Cody >>>> >>>> Cody W. Thompson, PhD >>>> Mammal Collections Manager >>>> & Assistant Research Scientist >>>> University of Michigan >>>> Museum of Zoology >>>> 3600 Varsity Drive >>>> Ann Arbor, Michigan 48108 >>>> Office: (734) 615-2810 >>>> Fax: (734) 763-4080 >>>> Email: cwthomp at umich.edu >>>> Website: codythompson.org >>>> >>>> In response to the ongoing events associated with COVID-19, the University of Michigan Museum of Zoology has suspended non-essential operations. This includes access to the collections via scientific visits or outgoing loans. Please do not ship collections (gifts, exchange, loan returns, etc.) to the museum at this time. >>>> >>>> >>>> On Wed, Nov 11, 2020 at 2:51 PM Debra Trock > wrote: >>>>> Have folks been giving a thought to the fact that if the Pfizer COVID-19 vaccine requires ultra cold storage, there could be a shortage of liquid nitrogen and ultracold freezers on the horizon? Are their contingency plans for the cryo collections in museums around the country - in fact the world? >>>>> >>>>> Cheers, >>>>> Deb >>>>> >>>>> _______________________________________________ >>>>> Nhcoll-l mailing list >>>>> Nhcoll-l at mailman.yale.edu >>>>> https://mailman.yale.edu/mailman/listinfo/nhcoll-l >>>>> >>>>> _______________________________________________ >>>>> NHCOLL-L is brought to you by the Society for the Preservation of >>>>> Natural History Collections (SPNHC), an international society whose >>>>> mission is to improve the preservation, conservation and management of >>>>> natural history collections to ensure their continuing value to >>>>> society. See http://www.spnhc.org for membership information. >>>>> Advertising on NH-COLL-L is inappropriate. >>>> >>>> _______________________________________________ >>>> Nhcoll-l mailing list >>>> Nhcoll-l at mailman.yale.edu >>>> https://mailman.yale.edu/mailman/listinfo/nhcoll-l >>>> >>>> _______________________________________________ >>>> NHCOLL-L is brought to you by the Society for the Preservation of >>>> Natural History Collections (SPNHC), an international society whose >>>> mission is to improve the preservation, conservation and management of >>>> natural history collections to ensure their continuing value to >>>> society. See http://www.spnhc.org for membership information. >>>> Advertising on NH-COLL-L is inappropriate. >> >> _______________________________________________ >> Nhcoll-l mailing list >> Nhcoll-l at mailman.yale.edu >> https://mailman.yale.edu/mailman/listinfo/nhcoll-l >> >> _______________________________________________ >> NHCOLL-L is brought to you by the Society for the Preservation of >> Natural History Collections (SPNHC), an international society whose >> mission is to improve the preservation, conservation and management of >> natural history collections to ensure their continuing value to >> society. See http://www.spnhc.org for membership information. >> Advertising on NH-COLL-L is inappropriate. -------------- next part -------------- An HTML attachment was scrubbed... URL: From chair at natsca.org Thu Nov 12 10:16:27 2020 From: chair at natsca.org (Chair NatSCA) Date: Thu, 12 Nov 2020 15:16:27 +0000 Subject: [Nhcoll-l] Decolonising Natural Science Collections - online conference 19th November 2020 Message-ID: Apologies for cross-posting - the SPNHC community may be interested in accessing this conference live, or via the recorded version which will be shared after the event: *Decolonising Natural Science CollectionsNovember 19th 2020 *9:50am ? 4.15pm GMT The Natural Sciences Collections Association (NatSCA) is holding a one-day online conference exploring decolonisation work with natural science collections. Over the course of the day, there will be a range of short talks covering case studies, practical suggestions and views from the sector and beyond. There will be opportunities for live Q&A. Miranda Lowe and Subhadra Das will be leading the proceedings as keynote speakers, presenting an update on their widely shared NatSCA paper - *Nature Read in Black and White: decolonial approaches to interpreting natural history collections*, available here: https://natsca.org/article/2509 *Registration details and the full programme can be found here: http://natsca.org/natsca2020 * All are welcome, and this event is free for NatSCA members. The event will be recorded and made freely available afterwards. Existing NatSCA members have been emailed a promotional code to use when registering - if you have not received this or would like to enquire if your institution is a member, please contact membership at natsca.org Of course, new members are welcome, and Personal Membership costs ?20 per year (which is the same as the conference registration fee for non-members). You can join up here: http://www.natsca.org/membership Best wishes, Isla Isla Gladstone Chair, NatSCA Senior Curator Natural Science, Bristol Museums -------------- next part -------------- An HTML attachment was scrubbed... URL: From jpandey at aibs.org Thu Nov 12 16:23:32 2020 From: jpandey at aibs.org (Jyotsna Pandey) Date: Thu, 12 Nov 2020 16:23:32 -0500 Subject: [Nhcoll-l] Call for Applications: 2021 AIBS Emerging Public Policy Leadership Award In-Reply-To: References: Message-ID: *Please share this announcement with interested graduate students* Each year, the American Institute of Biological Sciences (AIBS) recognizes graduate students in the biological sciences who are demonstrating an interest and aptitude for working at the intersection of science and policy. Recipients of the AIBS Emerging Public Policy Leadership Award receive: - *A trip to Washington, DC*, to participate in the AIBS Congressional Visits Day, an annual event where scientists meet with lawmakers to advocate for federal investment in the biological sciences, with a primary focus on the National Science Foundation. Domestic travel and hotel expenses are paid for the winners. As a result of the COVID-19 pandemic, winners will participate in a virtual advocacy event in the spring of 2021 (likely in April) and will also have the opportunity to attend a future in-person event. - *Online policy and communications training*, including information on the legislative process and trends in federal science funding, and how to engage with policymakers and the news media. - *Meetings with congressional policymakers* to discuss the importance of federal investment in the biological sciences. - *A one-year subscription to the journal BioScience* and a copy of ?Communicating Science: A Primer for Working with the Media.? The 2021 award is open to U.S. citizens and U.S. permanent residents enrolled in a graduate degree program in the biological sciences, science education, or a closely allied field. Applicants should have a demonstrated interest in and commitment to science policy and/or science education policy. Prior recipients, including Honorable Mentions, are not eligible for the award. Applications are due by 05:00 PM Eastern Time on January 15, 2021. Learn more at: https://www.aibs.org/news/2020/201111-call-for-eppla-2021.html Jyotsna Pandey, Ph.D. Public Policy Manager American Institute of Biological Sciences www.aibs.org Follow us on Twitter! @AIBSbiology -- This message is confidential and should only be read by its intended recipients.? If you have received it in error, please notify the sender and delete all copies. -------------- next part -------------- An HTML attachment was scrubbed... URL: From exhibitionplanningsurvey at gmail.com Thu Nov 12 17:05:28 2020 From: exhibitionplanningsurvey at gmail.com (NovaKultura Research) Date: Thu, 12 Nov 2020 17:05:28 -0500 Subject: [Nhcoll-l] Time-sensitive survey on exhibition planning Message-ID: --Please excuse cross-postings!? I am conducting a survey about exhibition professionals? experiences planning and purchasing equipment during the COVID-19 pandemic, as well as, future planning. If you are an archivist, a special collections librarian, a museum gallery professional, an exhibition installer, a curator or a cultural heritage professional who works in an institution where you exhibit collections items in gallery spaces, you are invited to participate! The survey is short and should take an estimated 10-15 minutes to complete. Participation is voluntary and those that complete the survey before Thanksgiving will be entered into a raffle to receive one of the five $100 Amazon gift cards! The results will inform an upcoming research paper that will be circulated with this group. You can access the survey here: https://www.surveymonkey.com/r/8JG9PPV. If you have any questions or concerns about this research, please contact me, Caitlin Christian-Lamb, at exhibitionplanningsurvey at gmail.com. Please feel free to share with your colleagues! Best, Caitlin -------------- next part -------------- An HTML attachment was scrubbed... URL: From aamgalexandra at gmail.com Fri Nov 13 10:49:55 2020 From: aamgalexandra at gmail.com (Alexandra Chamberlain) Date: Fri, 13 Nov 2020 10:49:55 -0500 Subject: [Nhcoll-l] CfP: AAMG 2021 Annual Conference, Wellness & Equity, Share with your networks Message-ID: Hello, I'm happy to announce that the Association of Academic Museums and Galleries recently released our Call for Proposals for the 2021 Annual Conference. I am reaching out to you today to see if you would be willing and able to share this information with your networks. Below I have included the information outlining the proposal process as well as details for next year's conference theme: Wellness & Equity. Additionally, the link to our submission portal is provided as well as a graphic if helpful to you and your audiences. Should you have any questions at all, need any other information, or if there is another process to go about submitting our CfP for sharing amongst your network, please do not hesitate to reach out. Additionally, if there is another contact for your organization for us to have on hand for any future similar distributions, let me know. Thank you for your time and consideration. Best, Alexandra Chamberlain Vice President Communications, Association of Academic Museums and Galleries To view this CfP on our website, click here ! [image: AAMG CfP Graphic.jpg] *Click here or copy and paste the following into your browser to access our submission portal:* https://www.eventsquid.com/event/11514 AAMG?s 2021 conference will explore how academic museums and galleries are fostering wellness and embracing new understandings of equity in the midst of one of the most challenging social, political, and economic periods in American history. This year?s conference aims to find new paths and solutions to a more just and empathetic world. We invite proposals that address these questions: How are museums and galleries becoming community hubs where emotional, psychological, and identity-centered fairness and solace can be explored, created, debated, and located? How have DEAI initiatives challenged or disrupted your institutional structure and internal practices, including collections, exhibitions, storytelling and teaching, and management? How do academic museums and galleries survive and thrive in this new higher education reality? *Possible Proposal Topics:* - Embedding wellness across the institution - Adapting and changing priorities for the better to be more equitable - Social emotional learning as a foundation for the educational resources - Taking the wellness temperature of museums ? are we healthy? - Helping our parent institutions address racial and gender justice practices and initiatives - Creating effective political discourse in our communities - Expanding audience when embracing health and wellness-oriented programs and resources - Overcoming the impact of inequities that have long existed in higher education and society on museums/galleries - Moving our staff, colleagues, students, and audiences from a focus on self-care to an emphasis on community-care *Types of Proposals Requested* - SESSION - PANEL DISCUSSION - BOLD IDEAS - ROUNDTABLE - POSTER SESSION *2021 Conference Proposal Information & Guidelines* SESSION Four presenters speak for fifteen minutes each on a focused topic. There should be time left at the end for Q&A (60 min. presentations/30 min. Q&A). Proposals must include information on the four presenters, one person serving as chair of the session. The chair can also be a presenter or serve as moderator/chair. Sessions are 1.5 hours. Items Needed for your Submission 1. Title (Maximum of 10 words) 2. Bio 3. Headshot 4. Description (Maximum of 75 words) If the session is accepted, this will be used in the Program*. 5. Abstract (Maximum of 250 words) Include why your session is innovative and relevant. Describe (up to three) objectives and potential learning outcomes of the proposal. Tell us why your topic and the proposed presentations within this session relate to the 2021 theme of Wellness & Equity? 6. Intended Audience/Track. Check all that apply (Student & Emerging Professional, Leadership & Management, Education & Community, Collections, Curatorial) 7. Presenters (200 words). List presenters you have approached to participate in this session and provide a brief description of the topic or contribution they will make to this session. PANEL DISCUSSION Three-four speakers will engage in a moderated discussion. Panel discussions, including Q&A, will be 1.5 hours. (max. 30 min. presentations/60 min. discussion and Q&A). Panels are 1.5 hours. Items Needed for your Submission 1. Title (Maximum of 10 words) 2. Bio 3. Headshot 4. Abstract (Maximum of 75 words) If the panel is accepted, this will be used in the Program*. 5. Description (Maximum of 300 words) Include why your panel is innovative and relevant. Tell us how your topic relates to the 2021 theme of Wellness & Equity. 6. Intended Audience/Track. Check all that apply (Student & Emerging Professional, Leadership & Management, Education & Community, Collections, Curatorial) 7. Presenters (200 words). List presenters you have approached to participate in this session and provide a brief description of the contribution they will make to this panel. BOLD IDEAS These single presentations are 5-8 minutes each and will be grouped together, similar to a pecha kucha. These Bold Ideas are intended to showcase everything from the variety of work that you do (case studies) to the big challenges and solutions needed in the field, all with a focus on wellness and equity. Items Needed for your Submission 1. Title (Maximum of 10 words) 2. Bio 3. Headshot 4. Description (Maximum of 75 words) If the session is accepted, this will be used in the Program*. 5. Abstract (Maximum of 250 words) Describe how your bold idea/story relates to the 2021 theme of Wellness & Equity? ROUNDTABLE FACILITATOR As the Roundtable Facilitator you will offer a 10-15 minute overview about a topic and your personal or professional connection to it, and then facilitate a conversation with those present. Items Needed for your Submission 1. Title (Maximum of 10 words) 2. Bio 3. Headshot 4. Description (Maximum of 75 words) If the session is accepted, this will be used in the Program*. 5. Abstract (Maximum of 250 words) Provide an overview for your discussion and why your skills, experiences, and interests will contribute to your success as a discussion leader, particularly as this relates to the conference theme. 6. Co-moderator/s. (Maximum 100 words) If you plan to have others co-moderate, please list them here and a brief description of how their skills and experience will contribute to the topic. POSTER SESSION Share your research, demonstrating a connection to the conference theme. These poster sessions offer an opportunity to share 5-10 minute presentations about recent research and discuss the research with attendees. These will be held live during the conference. Items Needed for your Submission 1. Title (Maximum of 10 words) 2. Bio 3. Headshot 4. Description (Maximum of 75 words) If the session is accepted, this will be used in the Program*. 5. Abstract (Maximum of 250 words) Tell us how your research relates to the 2021 theme of Wellness & Equity. -- ______________________________ [image: https://www.aamg-us.org/] Alexandra Chamberlain Gallery Director and Instructor, Indiana State University Vice President, Communications, Association of Academic Museums & Galleries Follow us on Facebook , Instagram , and Twitter to stay up to date with all things AAMG! -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: AAMG CfP Graphic.jpg Type: image/jpeg Size: 118876 bytes Desc: not available URL: From wahlert at ccber.ucsb.edu Fri Nov 13 13:22:46 2020 From: wahlert at ccber.ucsb.edu (Greg Wahlert) Date: Fri, 13 Nov 2020 10:22:46 -0800 Subject: [Nhcoll-l] Herbarium Digitization Technician at UC Santa Barbara (UCSB) Message-ID: *Herbarium Digitization Technician, University of California, Santa Barbara * *Summary of position and responsibilities: *The Cheadle Center for Biodiversity and Ecological Restoration (CCBER) at UC Santa Barbara is seeking applicants for an Herbarium Digitization Technician at the UCSB Herbarium. The UCSB Natural History Collections?including the UCSB Herbarium?comprise nearly a half million specimens that are housed at CCBER. The Technician will focus on digitizing the Herbarium?s newly organized collection: ?Seaweeds of the Pacific Coast of North America.? Most of our specimens are from the central California coast and Channel Islands region, making them an excellent resource to understand macroalgal diversity in the Point Conception area, a major biogeographic break on the Pacific Coast. Digital data freely provided by the Cheadle Center is heavily utilized by researchers around the world, and this position supports our mission of education, research, and ecological restoration ( https://ccber.ucsb.edu/). Under supervision of the Collection Manager, the Technician will be responsible for the digitization of ca. 10,000 seaweed specimens, which includes a variety of activities such as barcoding, imaging, transcribing specimen labels, and georeferencing the specimens in our online Macroalgal Portal database. Other duties include recruiting, training, and supervising UCSB student interns and community volunteers to assist with the digitization effort, both on-site and remotely; assessing quality of digitized records; managing the images and digital records of the collection; assisting with teaching an undergraduate course ?Introduction to Curation of Natural History Collections? twice a year; assisting with herbarium pest management; seeking expert taxonomic identification of specimens; and assisting with the planning and implementation of two workshops on California seaweed identification. The Technician will advance the digitization of an important herbarium collection, which includes some of the earliest seaweed specimens collected in California. This position is well suited for a detail- and goal-oriented person who enjoys outreach with interns and the general public and providing open-access biodiversity data to enable research and education. We also seek a candidate who is eager to meet the challenges of the pandemic and who will persevere in the face of a rapidly changing work environment. In response to the public health crisis due to the coronavirus pandemic, the position will require the Technician to adapt, develop, and maintain safe working conditions in the Herbarium as a top priority. Work will be carried out by the Technician in isolated workspaces to maximize safety, and the Technician will train interns and volunteers across secure glass barriers that separate the Herbarium and offices from workspaces in the building. The incumbent will work closely with CCBER staff, representatives of the UCSB campus, and others to ensure proper implementation of safety measures, as well as assist with developing new work procedures that meet or exceed State and Campus safety requirements. The incumbent will have the opportunity for career development in natural history collections, taxonomy, and biodiversity informatics through mentorship by CCBER scientists, curators, and visiting researchers and by attending training workshops. The Technician will be encouraged to engage in scholarly activities such as participating and organizing public workshops and digitization events, co-teaching courses on natural history collections, writing grant proposals to support UCSB student interns and volunteers, disseminating findings at seminars and conferences, and interacting with UCSB faculty and students. This full-time position is funded for two years as part of an Institute of Museum and Library Services project at the Cheadle Center. It is anticipated that up to 100% of the work will be performed at the Herbarium on the UCSB Campus, but this may change to a mix of remote and on-site work, given the uncertainties surrounding the health crisis. *Minimum requirements: *Graduation from high school or a General Education Diploma or two years of college including courses in the natural, physical or social sciences and at least two years? experience curating specimens in an herbarium or natural history museum setting, including experience with, filing, imaging, digitizing, and georeferencing specimens; working with biodiversity databases, including label transcription and georeferencing; basic familiarity with biological classification, nomenclature, and taxonomy; excellent organizational skills; demonstrated ability for productivity and accuracy; and a willingness to innovate and to seek solutions to the many logistical problems presented by the pandemic health crisis. *Desirable qualifications: *A bachelor?s or master?s degree in natural, physical or social sciences or museum studies and a basic familiarity with California seaweeds. *Apply here* Job ID: 12710 ________________________________________________________ Gregory A. Wahlert, Ph.D. Shirley Tucker Curator of Biodiversity Collections and Botanical Research Cheadle Center for Biodiversity and Ecological Restoration Harder South, Bldg. 578, Room 1009 University of California, Santa Barbara Santa Barbara, California 93106, USA e-mail: wahlert at ccber.ucsb.edu; rinorea at gmail.com; skype: gregory.wahlert office phone: (805) 893-2401; cell: (805) 294-8685 ________________________________________________________ -------------- next part -------------- An HTML attachment was scrubbed... URL: From bwatts at brit.org Mon Nov 16 09:00:33 2020 From: bwatts at brit.org (Brandy Watts) Date: Mon, 16 Nov 2020 14:00:33 +0000 Subject: [Nhcoll-l] Collections Lens: Susan Fraser of the LuEsther T. Mertz Library Message-ID: Dear All, Below you will find a recent Collections Lens interview with Susan Fraser of the LuEsther T. Mertz Library. http://www.brit.org/collections-lens/susan-fraser-luesther-t-mertz-library Hope you are well. Very best, Brandy Watts, MLIS, MFA | Librarian | BRIT | 817.332.4441 x 271 |817.463.4102 direct | 817.332.4112 fax | BRIT.org | 1700 University Dr., Fort Worth, TX 76107-3400 USA | Think Before You Print -------------- next part -------------- An HTML attachment was scrubbed... URL: From randrew899 at gmail.com Mon Nov 16 11:33:01 2020 From: randrew899 at gmail.com (Andrew Dreelin) Date: Mon, 16 Nov 2020 10:33:01 -0600 Subject: [Nhcoll-l] Request for Mounts: American Badger and/or Sprague's Pipit Message-ID: Hello, My name is Andrew Dreelin, and I'm a first-year graduate student in the Jones Restoration Lab at Northern Illinois University where I study grassland bird communities and their response to the keystone effects of Black-tailed Prairie Dogs under Holly Jones and Andy Boyce . We are seeking two mounts to use in two separate field experiments during our upcoming field season in April 2021, and we are hoping to find someone who has the appropriate specimen mounts that they would be willing to donate or loan to us. We are in need of: 1) an American Badger (*Taxidea taxus*), to be used by me in a simulated predator trial to test the behavioral response of nesting Long-billed Curlews to predators in areas with and without prairie dogs. This will examine whether curlews eavesdrop on prairie dog alarm call networks as early warning systems. The badger mount will be affixed to a durable remote-controlled car chassis and slowly piloted towards nests where small cameras will record cryptic & mobbing behaviors. I have attached more details on the project + methods below. 2) a Sprague's Pipit (*Anthus spragueii*), to be used by Andy Boyce as a visual lure in association with playback to capture breeding Sprague's Pipits for a study of their demography and movement ecology at the same site. The mount will be placed on the ground in conjunction with mist nets and song playback to capture territorial individuals. Neither of the specimens needs to be of particularly high quality. We are also interested in the possibility of obtaining a salvaged specimen which we could then mount ourselves if anyone comes into possession of a deceased badger or pipit. Thank you very much for your attention. I appreciate any help anyone can provide. Sincerely, Andrew Dreelin (He/him/his) Graduate Student | Jones Restoration Lab Biological Sciences | Northern Illinois University Please note I may send emails outside of regular work hours, but there is no expectation for you to respond. -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: GRFP_RAD_Research Statement Round 2_Final.pdf Type: application/pdf Size: 327978 bytes Desc: not available URL: From info at arcsinfo.org Mon Nov 16 22:00:00 2020 From: info at arcsinfo.org (ARCS) Date: Mon, 16 Nov 2020 21:00:00 -0600 Subject: [Nhcoll-l] RCS Mentoring Update & #ARCSchat Fire Prep Livestream ARCS Update Vol 5 | Update 20 Message-ID: ***RCS Mentoring Update*** The RCS Mentoring Program is accepting applications for both Mentors and Mentees to be matched in Winter 2020 for a 6 month time period. The program is a joint collaboration between ARCS and the Collections Stewardship professional network of AAM. Please submit your application by November 27th to be considered in this next round of matches. The mentoring relationship is a mutually rewarding experience that offers opportunities for professional growth and development throughout all career stages. During Spring 2020, thirteen Mentees were matched with Mentors based on areas of interest and professional needs. For more information and to see if the program may be right for you, please go to http://www.arcsinfo.org/membership/registrars-and-collections-specialists-mentoring-program or https://www.collectionsstewardship.org/ ***#ARCSchat Fire Prep Livestream*** Did you miss the last #ARCSchat Fire Preparation co-hosted with the ARCS Emergency SubCommittee? View the recording here! https://youtu.be/5FwJyIULYsA ***Sealed Frame Package Questionnaire, Image Permanence Institute*** As part of the first phase of a three-year research project, Cost-Efficient and Environmentally Responsible Preservation Methods for Preparing Paper-Based Objects for Transit and Display, the Image Permanence Institute (IPI) is conducting a sealed frame package questionnaire. The results of this questionnaire will inform a current inventory of commonly used materials for sealed frame package components. These materials will be evaluated for cost and environmental waste comparisons, and tested in laboratory experiments of sealed frame package designs. The questionnaire should take approximately 10 minutes to complete and addresses the following topics: 1) Use of sealed frame packages, 2) Exploring topics related to cost and environmental waste associated with sealed frame packages, and 3) Sealed frame package material components and design. Complete the questionnaire at: https://imagepermanenceinstitute.wufoo.com/forms/z6ve8jy0pxjrzd/ About IPI The Image Permanence Institute (IPI) is a preservation research center in the College of Art and Design at Rochester Institute of Technology, Rochester, NY. IPI achieves its mission to support the preservation of cultural heritage collections through applied research, the development of practical preservation resources and tools, professional-level education and training programs, and through consulting and materials testing services. Learn more at: http://www.imagepermanenceinstitute.org -------------- next part -------------- An HTML attachment was scrubbed... URL: From gnelson at floridamuseum.ufl.edu Tue Nov 17 07:55:40 2020 From: gnelson at floridamuseum.ufl.edu (Nelson,Gil) Date: Tue, 17 Nov 2020 12:55:40 +0000 Subject: [Nhcoll-l] iDigBio Webinar Tomorrow: Engaging Public Participation in Collections Digitization In-Reply-To: References: , , , , , , , , , , , , , , , , Message-ID: [cid:92aa6ed5-ed29-4349-a43f-3c9f08004ab2] Please join us Wednesday, November 18th at 2pm Eastern for the fifth webinar "Engaging Public Participation in Collections Digitization" in the iDigBio series Adapting to COVID-19: Resources for Natural History Collections in a New Virtual World. [cid:12b3214b-f6e0-4ab2-acb7-dd91ac663b8e] iDigBio recognizes the rapid changes happening within museum communities and the efforts being made throughout the community to adapt to these changes. We hope that this webinar series can help to provide insight into how different groups and institutions are adapting to life in a quickly evolving world. All webinars will be recorded and held in Zoom. November 18: Engaging Public Participation in Collections Digitization Learn about opportunities to use the Zooniverse platform for collections digitization, including examples of Notes from Nature related to transcription and phenology scoring projects. We will also demo available project management tools for NfN, followed by a higher-level explanation of the technology behind the platform that makes it all possible. Speakers: Austin Mast; iDigBio, Florida State University & Katie Pearson, Project Manager California Phenology TCN Zoom link: https://ufl.zoom.us/j/99571640979?pwd=V0VwbDBySEtBYUptNUZ2L0RQNGh0UT09 Follow the Zoom link above to join and please visit the webinar series page for information on the additional webinars that will be featured in this series: https://www.idigbio.org/content/webinar-series-adapting-covid-resources-natural-history-collections-new-virtual-world We hope to see you all Wednesday! -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: Outlook-2liui4yh.png Type: image/png Size: 14334 bytes Desc: Outlook-2liui4yh.png URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: Outlook-mhu0oswj.png Type: image/png Size: 300238 bytes Desc: Outlook-mhu0oswj.png URL: From aflemming at flmnh.ufl.edu Thu Nov 19 12:34:58 2020 From: aflemming at flmnh.ufl.edu (Flemming,Adania) Date: Thu, 19 Nov 2020 17:34:58 +0000 Subject: [Nhcoll-l] We need your help: brief survey- undergraduates using museum collections In-Reply-To: References: Message-ID: Hello SPNHC folks, Thanks to everyone who has completed this survey already. This is a reminder to please complete it if you have not yet found the time to do so. Do you use or have you considered using natural history collections in your undergraduate courses? If so, please help with my research on courses using natural history collections by filling out this brief survey. BACKGROUND: My name is Adania Flemming. I am a PhD student in the department of Biology with joint appointment in the Florida Museum of Natural History, at the University of Florida. I am also a research assistant with iDigBio (Integrated Digitized Biocollections). I created an Introduction to Natural History Museums course geared towards introducing undergraduate students to careers in Science Technology Engineering Art and Mathematics (STEAM) through hands on research-based projects. As part of my research, I am interested in knowing if similar courses exist and understanding the goals of those courses. I am specifically interested in courses meant to introduce students to the nature of science, provide an understanding of how scientific knowledge is generated, and what conducting research entails. I would like to know the role that museum specimens play in this process of learning. I am secondarily interested in how museum collections are used in other aspects of teaching undergraduate students. Last, my collaborator Kari Harris, who started the Natural History Collections Club Network (NHCCN), is interested in gathering information about relevant student clubs near you. Please complete the survey by Wednesday 2nd December at 5pm Eastern. Feel free to email me directly if you have questions. Full Survey Link: https://ufl.qualtrics.com/jfe/form/SV_5b9rYCgKiKD95Rz Thank you! Regards, Adania Flemming M.S. Pronouns: She/her/hers Department of Biology Florida Museum of Natural History/iDigBio/TESI University of Florida Office Phone: 352-273-1951 Email: aflemming at flmnh.ufl.edu FMSA Website: https://www.floridamuseum.ufl.edu/student-association/ ________________________________ From: Flemming,Adania Sent: Wednesday, November 4, 2020 1:48 PM To: nhcoll-l at mailman.yale.edu Cc: Phillips,Molly Subject: We need your help: brief survey- undergraduates using museum collections Hello SPNHC folks, I hope you are all doing well given the multiple pandemics we are experiencing across the globe. Herein we provide you with an election break/distraction for those of us in the US or tuned in to the elections. You can help us help the next generation of academics. Do you use or have you considered using natural history collections in your undergraduate courses? If so, please help with my research on courses using natural history collections by filling out this brief survey. BACKGROUND: My name is Adania Flemming. I am a PhD student in the department of Biology with joint appointment in the Florida Museum of Natural History, at the University of Florida. I am also a research assistant with iDigBio (Integrated Digitized Biocollections). I created an Introduction to Natural History Museums course geared towards introducing undergraduate students to careers in Science Technology Engineering Art and Mathematics (STEAM) through hands on research-based projects. As part of my research, I am interested in knowing if similar courses exist and understanding the goals of those courses. I am specifically interested in courses meant to introduce students to the nature of science, provide an understanding of how scientific knowledge is generated, and what conducting research entails. I would like to know the role that museum specimens play in this process of learning. I am secondarily interested in how museum collections are used in other aspects of teaching undergraduate students. Last, my collaborator Kari Harris, who started the Natural History Collections Club Network (NHCCN), is interested in gathering information about relevant student clubs near you. Please complete the survey by Wednesday 2nd December at 5pm Eastern. Feel free to email me directly if you have questions. Full Survey Link: https://ufl.qualtrics.com/jfe/form/SV_5b9rYCgKiKD95Rz Thank you! Regards, Adania Flemming M.S. Pronouns: She/her/hers Department of Biology Florida Museum of Natural History/iDigBio/TESI University of Florida Office Phone: 352-273-1951 Email: aflemming at flmnh.ufl.edu FMSA Website: https://www.floridamuseum.ufl.edu/student-association/ -------------- next part -------------- An HTML attachment was scrubbed... URL: From Tonya.Haff at csiro.au Thu Nov 19 18:29:43 2020 From: Tonya.Haff at csiro.au (Haff, Tonya (NCMI, Crace)) Date: Thu, 19 Nov 2020 23:29:43 +0000 Subject: [Nhcoll-l] Jar liners Message-ID: Hi all, I know I've asked about this before, but may I please clarify again.... Does anyone have preference regarding PTFE (e.g. Teflon, I believe) lid liners vs F217 liners, which are layered polyethylene (as far as I understand). Can anyone give me advice as to what would be better as a lid liner for specimens kept in 70-90% EtOH? Advice very appreciated! Cheers, Tonya --------------------------------------------------------- Dr Tonya Haff Collections Manager Australian National Wildlife Collection National Research Collections Australia, CSIRO Canberra, Australia Phone: (+61) 02 6242 1566 (office) (+61) 0419 569 109 (mobile) -------------- next part -------------- An HTML attachment was scrubbed... URL: From Lennart.Lennuk at loodusmuuseum.ee Fri Nov 20 01:54:01 2020 From: Lennart.Lennuk at loodusmuuseum.ee (Lennart Lennuk) Date: Fri, 20 Nov 2020 06:54:01 +0000 Subject: [Nhcoll-l] Jar liners In-Reply-To: References: Message-ID: Hi! Thank you for this question. I am also very interested in this and also, can anybody suggest good companies for jars in europe? Best! Lennart From: Nhcoll-l [mailto:nhcoll-l-bounces at mailman.yale.edu] On Behalf Of Haff, Tonya (NCMI, Crace) Sent: Friday, November 20, 2020 1:30 AM To: nhcoll-l at mailman.yale.edu Subject: [Nhcoll-l] Jar liners Hi all, I know I?ve asked about this before, but may I please clarify again?. Does anyone have preference regarding PTFE (e.g. Teflon, I believe) lid liners vs F217 liners, which are layered polyethylene (as far as I understand). Can anyone give me advice as to what would be better as a lid liner for specimens kept in 70-90% EtOH? Advice very appreciated! Cheers, Tonya --------------------------------------------------------- Dr Tonya Haff Collections Manager Australian National Wildlife Collection National Research Collections Australia, CSIRO Canberra, Australia Phone: (+61) 02 6242 1566 (office) (+61) 0419 569 109 (mobile) -------------- next part -------------- An HTML attachment was scrubbed... URL: From neumann at snsb.de Fri Nov 20 03:09:39 2020 From: neumann at snsb.de (Dirk Neumann) Date: Fri, 20 Nov 2020 09:09:39 +0100 Subject: [Nhcoll-l] Jar liners In-Reply-To: References: Message-ID: Hi Tonya & Lennart, I guess there are several layers to unfold here: Foamed liners - like the F217 liners you mention - consist of a foamed cell structure which - if the lid is screwed down tight - is compressed again the neck of the jar. This outs the cells under pressure and closed cells would withstand this tension better then open cell structures. It is hard to tell if the F217 liners you mention has open or closed cells, which gas is used for filling of the foam structure, etc. Even if the F217 liners would have the right composition, right thickness, closed cells - it still a is compressible gasket which has a limited life span. To produce a good closure, you would further need to consider the threads on the jar (continuous or not), the composition of the lid itself (the best liner does not help if the plastic used for the lid itself is of poor quality, etc. Most important seems to me that sizes of such lids are standardised (rather then customised for specific jars), so that they can easily be replaced if they fail. This is one of the huge problems many collections with Copehagen jars now face after plastic lids reached the end of their life span, sized where customised, company went out of production: it is virtually impossible to replace these lids - which causes huge problems in many collections. It seems that F217 and PTFE liners are often used as inlays for Phenolic caps (Bakelite) - which is a no-go in fluid collections because this sort of thermoset plastics is easily degraded by residual formaldehyde escaping from formaldehyde preserved specimens, even if they have been transferred in to alcohol. As said: the best liner is worthless if the plastic lid itself is unsuited. In general, plastic lids are not a good oxygen barrier - this is also worth remembering, especially if specimens inside such jars release a lot of fats or oils. Rather then concentrating on specific lids I would look into jars that are designed for the pharmaceutical sector. Here, both the jar (soda-lime glass) and the lid are expected (and usually tested) to withstand a wide range of chemicals AND to provide a good barrier against oxygen. There are different suppliers of such jars, the disadvantage of the wide mouth jars however is that the largest opening in these jars is 65 mm. So a good option for for 100 - 1000 ml jars, but not for larger jars.? St?lzle (who also produce high quality borosilicate stoppered jars) is a possible source for such jars, but there are many others as well: https://pharma.stoelzle.com/en/product_category/weithalsglaser/ So as mostly no clear cut answer, but hopefully one that is useful. All the best Dirk Am 20.11.2020 um 00:29 schrieb Haff, Tonya (NCMI, Crace): > > Hi all, > > I know I?ve asked about this before, but may I please clarify again?. > Does anyone have preference regarding PTFE (e.g. Teflon, I believe) > lid liners vs F217 liners, which are layered polyethylene (as far as I > understand). Can anyone give me advice as to what would be better as a > lid liner for specimens kept in 70-90% EtOH? Advice very appreciated! > > Cheers, > > Tonya > > --------------------------------------------------------- > > Dr Tonya Haff > > Collections Manager > > Australian National Wildlife Collection > > National Research Collections Australia, CSIRO > > Canberra, Australia > > Phone: (+61) 02 6242 1566 (office) > > (+61) 0419 569 109 (mobile) > > > _______________________________________________ > Nhcoll-l mailing list > Nhcoll-l at mailman.yale.edu > https://mailman.yale.edu/mailman/listinfo/nhcoll-l > > _______________________________________________ > NHCOLL-L is brought to you by the Society for the Preservation of > Natural History Collections (SPNHC), an international society whose > mission is to improve the preservation, conservation and management of > natural history collections to ensure their continuing value to > society. See http://www.spnhc.org for membership information. > Advertising on NH-COLL-L is inappropriate. -- Dirk Neumann Tel: 089 / 8107-111 Fax: 089 / 8107-300 neumann(a)snsb.de Postanschrift: Staatliche Naturwissenschaftliche Sammlungen Bayerns Zoologische Staatssammlung M?nchen Dirk Neumann, Sektion Ichthyologie / DNA-Storage M?nchhausenstr. 21 81247 M?nchen Besuchen Sie unsere Sammlung: http://www.zsm.mwn.de/sektion/ichthyologie-home/ --------- Dirk Neumann Tel: +49-89-8107-111 Fax: +49-89-8107-300 neumann(a)snsb.de postal address: Bavarian Natural History Collections The Bavarian State Collection of Zoology Dirk Neumann, Section Ichthyology / DNA-Storage Muenchhausenstr. 21 81247 Munich (Germany) Visit our section at: http://www.zsm.mwn.de/sektion/ichthyologie-home/ -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: pjdgkdomcanmhedo.png Type: image/png Size: 23308 bytes Desc: not available URL: From Fabian.Neisskenwirth at ruhrmuseum.de Fri Nov 20 04:08:51 2020 From: Fabian.Neisskenwirth at ruhrmuseum.de (Neisskenwirth, Fabian) Date: Fri, 20 Nov 2020 09:08:51 +0000 Subject: [Nhcoll-l] Jar liners In-Reply-To: References: Message-ID: <3ecde4298f344f7db2e7ba29824da34b@SRVBK13DB02.stadt.essen.de> Hey there, I totally agree with Dirks statement. Glass lids are much more stable than any other kind of material used in fluid collections. I would like to share my experience with a sort of new jar type from Duran? (former Schott). They have a product line called "GLS 80" jars. It has a mouth opening of 80 mm, but the size varies from 500ml to 25000 ml. The mouth opening works very well for smaller specimens. The jars are made of borosilicate and sold at an affordable price, because they are made for the pharma industry. This is why they also have "filling marks", which esthetically speaking is not so nice, but it still fulfills the purpose of the jar. One of the sales agents of DWK (Duran Group), offered me that at a certain amount of jars, there could be a batch (around 1000 jars) made without "filling marks". There is a new type of lid for this jars too, made of Polysulfone (PSU) with a PTFE coated silicone liner. The Duran Group works worldwide, so if you have any questions regarding this contact Eric Lehnen (eric.lehnen at dwk.com). He knows about the use of the jars for collections purpose. This seems to be a very good improvement to move away from poor quality "sausage jars" with fast degrading lids. I have made a one year aging test with three jars with ethanol 70% mixed with a buffered formaldehyde solution 3,4% (9:1) and have seen no negative reactions on the lids. But this still should be tested more thoroughly. Hope this helps you out! -- Fabian Neisskenwirth Zoologischer Pr?parator MA Student Restaurierung und Konservierung von Kulturgut +49 (0) 201 24681 470 Stiftung Ruhr Museum Fritz-Schupp-Allee 15 45141 Essen www.ruhrmuseum.de Von: Nhcoll-l [mailto:nhcoll-l-bounces at mailman.yale.edu] Im Auftrag von Dirk Neumann Gesendet: Freitag, 20. November 2020 09:10 An: nhcoll-l at mailman.yale.edu Betreff: Re: [Nhcoll-l] Jar liners Hi Tonya & Lennart, I guess there are several layers to unfold here: Foamed liners - like the F217 liners you mention - consist of a foamed cell structure which - if the lid is screwed down tight - is compressed again the neck of the jar. This outs the cells under pressure and closed cells would withstand this tension better then open cell structures. It is hard to tell if the F217 liners you mention has open or closed cells, which gas is used for filling of the foam structure, etc. Even if the F217 liners would have the right composition, right thickness, closed cells - it still a is compressible gasket which has a limited life span. To produce a good closure, you would further need to consider the threads on the jar (continuous or not), the composition of the lid itself (the best liner does not help if the plastic used for the lid itself is of poor quality, etc. Most important seems to me that sizes of such lids are standardised (rather then customised for specific jars), so that they can easily be replaced if they fail. This is one of the huge problems many collections with Copehagen jars now face after plastic lids reached the end of their life span, sized where customised, company went out of production: it is virtually impossible to replace these lids - which causes huge problems in many collections. It seems that F217 and PTFE liners are often used as inlays for Phenolic caps (Bakelite) - which is a no-go in fluid collections because this sort of thermoset plastics is easily degraded by residual formaldehyde escaping from formaldehyde preserved specimens, even if they have been transferred in to alcohol. As said: the best liner is worthless if the plastic lid itself is unsuited. In general, plastic lids are not a good oxygen barrier - this is also worth remembering, especially if specimens inside such jars release a lot of fats or oils. Rather then concentrating on specific lids I would look into jars that are designed for the pharmaceutical sector. Here, both the jar (soda-lime glass) and the lid are expected (and usually tested) to withstand a wide range of chemicals AND to provide a good barrier against oxygen. There are different suppliers of such jars, the disadvantage of the wide mouth jars however is that the largest opening in these jars is 65 mm. So a good option for for 100 - 1000 ml jars, but not for larger jars. St?lzle (who also produce high quality borosilicate stoppered jars) is a possible source for such jars, but there are many others as well: https://pharma.stoelzle.com/en/product_category/weithalsglaser/ So as mostly no clear cut answer, but hopefully one that is useful. All the best Dirk Am 20.11.2020 um 00:29 schrieb Haff, Tonya (NCMI, Crace): Hi all, I know I've asked about this before, but may I please clarify again.... Does anyone have preference regarding PTFE (e.g. Teflon, I believe) lid liners vs F217 liners, which are layered polyethylene (as far as I understand). Can anyone give me advice as to what would be better as a lid liner for specimens kept in 70-90% EtOH? Advice very appreciated! Cheers, Tonya --------------------------------------------------------- Dr Tonya Haff Collections Manager Australian National Wildlife Collection National Research Collections Australia, CSIRO Canberra, Australia Phone: (+61) 02 6242 1566 (office) (+61) 0419 569 109 (mobile) _______________________________________________ Nhcoll-l mailing list Nhcoll-l at mailman.yale.edu https://mailman.yale.edu/mailman/listinfo/nhcoll-l _______________________________________________ NHCOLL-L is brought to you by the Society for the Preservation of Natural History Collections (SPNHC), an international society whose mission is to improve the preservation, conservation and management of natural history collections to ensure their continuing value to society. See http://www.spnhc.org for membership information. Advertising on NH-COLL-L is inappropriate. -- [cid:image002.png at 01D6BF21.355D9600] Dirk Neumann Tel: 089 / 8107-111 Fax: 089 / 8107-300 neumann(a)snsb.de Postanschrift: Staatliche Naturwissenschaftliche Sammlungen Bayerns Zoologische Staatssammlung M?nchen Dirk Neumann, Sektion Ichthyologie / DNA-Storage M?nchhausenstr. 21 81247 M?nchen Besuchen Sie unsere Sammlung: http://www.zsm.mwn.de/sektion/ichthyologie-home/ --------- Dirk Neumann Tel: +49-89-8107-111 Fax: +49-89-8107-300 neumann(a)snsb.de postal address: Bavarian Natural History Collections The Bavarian State Collection of Zoology Dirk Neumann, Section Ichthyology / DNA-Storage Muenchhausenstr. 21 81247 Munich (Germany) Visit our section at: http://www.zsm.mwn.de/sektion/ichthyologie-home/ -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image002.png Type: image/png Size: 8592 bytes Desc: image002.png URL: From prc44 at drexel.edu Fri Nov 20 08:00:17 2020 From: prc44 at drexel.edu (Callomon,Paul) Date: Fri, 20 Nov 2020 13:00:17 +0000 Subject: [Nhcoll-l] Jar liners In-Reply-To: <3ecde4298f344f7db2e7ba29824da34b@SRVBK13DB02.stadt.essen.de> References: <3ecde4298f344f7db2e7ba29824da34b@SRVBK13DB02.stadt.essen.de> Message-ID: We recently overhauled our 50,000-jar alcohol collection for the first time in 50 years. We found the following things for lids on screw-top jars: * Steel lids are problematic. Ours were painted black on the outside and cadmium-plated inside with solid plastic seals. The seals had almost all held, but the lids themselves had pinpoint rusting from the inside due to condensation. If those pinpoints get through the metal, the lid is more likely to fail. We've replaced them all. * PPE lids with either solid PPE disks or F217 liners are both fine. We started using them in the 1980s (PPE disks) and 1990s (F217) and both have lasted well, with a failure rate below 1% * Phenolic lids with coneseal liners - very good. Bakelite and phenolic lids with food-grade-paper (coated or foil-laminated card) liners - high failure rate. We replaced them all. * Note that there is a difference between pure phenolic resin and Bakelite. The latter has wood dust mixed with the resin, and always fails over time, often suddenly and completely. You can usually tell the difference by the gloss, color and size; Bakelite is not as black or as glossy as phenolic. If it's over 50 mm in diameter it's likely to be Bakelite. * However, as Dirk points out, although phenolic resin is fine with ethanol it can be affected by formaldehyde. We have also found that phenolic will leach dark color into alcohol if it is immersed for more than a year, so it's clearly not entirely stable to ethanol either. Finally, though they are not available in small sizes the most stable and economical jars in our collection are bale jars with galvanized steel bale clips and either natural rubber, butyl or neoprene gaskets (e. g. "Ball"-brand jars). These effectively never fail. Paul Callomon MSc Collection Manager, Malacology and General Invertebrates ________________________________ Academy of Natural Sciences of Drexel University, Philadelphia 1900 Benjamin Franklin Parkway, Philadelphia PA 19103-1195, USA prc44 at drexel.edu Tel 215-405-5096 - Fax 215-299-1170 From: Nhcoll-l On Behalf Of Neisskenwirth, Fabian Sent: Friday, November 20, 2020 4:09 AM To: 'neumann at snsb.de' ; nhcoll-l at mailman.yale.edu Subject: Re: [Nhcoll-l] Jar liners External. Hey there, I totally agree with Dirks statement. Glass lids are much more stable than any other kind of material used in fluid collections. I would like to share my experience with a sort of new jar type from Duran? (former Schott). They have a product line called "GLS 80" jars. It has a mouth opening of 80 mm, but the size varies from 500ml to 25000 ml. The mouth opening works very well for smaller specimens. The jars are made of borosilicate and sold at an affordable price, because they are made for the pharma industry. This is why they also have "filling marks", which esthetically speaking is not so nice, but it still fulfills the purpose of the jar. One of the sales agents of DWK (Duran Group), offered me that at a certain amount of jars, there could be a batch (around 1000 jars) made without "filling marks". There is a new type of lid for this jars too, made of Polysulfone (PSU) with a PTFE coated silicone liner. The Duran Group works worldwide, so if you have any questions regarding this contact Eric Lehnen (eric.lehnen at dwk.com). He knows about the use of the jars for collections purpose. This seems to be a very good improvement to move away from poor quality "sausage jars" with fast degrading lids. I have made a one year aging test with three jars with ethanol 70% mixed with a buffered formaldehyde solution 3,4% (9:1) and have seen no negative reactions on the lids. But this still should be tested more thoroughly. Hope this helps you out! -- Fabian Neisskenwirth Zoologischer Pr?parator MA Student Restaurierung und Konservierung von Kulturgut +49 (0) 201 24681 470 Stiftung Ruhr Museum Fritz-Schupp-Allee 15 45141 Essen www.ruhrmuseum.de Von: Nhcoll-l [mailto:nhcoll-l-bounces at mailman.yale.edu] Im Auftrag von Dirk Neumann Gesendet: Freitag, 20. November 2020 09:10 An: nhcoll-l at mailman.yale.edu Betreff: Re: [Nhcoll-l] Jar liners Hi Tonya & Lennart, I guess there are several layers to unfold here: Foamed liners - like the F217 liners you mention - consist of a foamed cell structure which - if the lid is screwed down tight - is compressed again the neck of the jar. This outs the cells under pressure and closed cells would withstand this tension better then open cell structures. It is hard to tell if the F217 liners you mention has open or closed cells, which gas is used for filling of the foam structure, etc. Even if the F217 liners would have the right composition, right thickness, closed cells - it still a is compressible gasket which has a limited life span. To produce a good closure, you would further need to consider the threads on the jar (continuous or not), the composition of the lid itself (the best liner does not help if the plastic used for the lid itself is of poor quality, etc. Most important seems to me that sizes of such lids are standardised (rather then customised for specific jars), so that they can easily be replaced if they fail. This is one of the huge problems many collections with Copehagen jars now face after plastic lids reached the end of their life span, sized where customised, company went out of production: it is virtually impossible to replace these lids - which causes huge problems in many collections. It seems that F217 and PTFE liners are often used as inlays for Phenolic caps (Bakelite) - which is a no-go in fluid collections because this sort of thermoset plastics is easily degraded by residual formaldehyde escaping from formaldehyde preserved specimens, even if they have been transferred in to alcohol. As said: the best liner is worthless if the plastic lid itself is unsuited. In general, plastic lids are not a good oxygen barrier - this is also worth remembering, especially if specimens inside such jars release a lot of fats or oils. Rather then concentrating on specific lids I would look into jars that are designed for the pharmaceutical sector. Here, both the jar (soda-lime glass) and the lid are expected (and usually tested) to withstand a wide range of chemicals AND to provide a good barrier against oxygen. There are different suppliers of such jars, the disadvantage of the wide mouth jars however is that the largest opening in these jars is 65 mm. So a good option for for 100 - 1000 ml jars, but not for larger jars. St?lzle (who also produce high quality borosilicate stoppered jars) is a possible source for such jars, but there are many others as well: https://pharma.stoelzle.com/en/product_category/weithalsglaser/ So as mostly no clear cut answer, but hopefully one that is useful. All the best Dirk Am 20.11.2020 um 00:29 schrieb Haff, Tonya (NCMI, Crace): Hi all, I know I've asked about this before, but may I please clarify again.... Does anyone have preference regarding PTFE (e.g. Teflon, I believe) lid liners vs F217 liners, which are layered polyethylene (as far as I understand). Can anyone give me advice as to what would be better as a lid liner for specimens kept in 70-90% EtOH? Advice very appreciated! Cheers, Tonya --------------------------------------------------------- Dr Tonya Haff Collections Manager Australian National Wildlife Collection National Research Collections Australia, CSIRO Canberra, Australia Phone: (+61) 02 6242 1566 (office) (+61) 0419 569 109 (mobile) _______________________________________________ Nhcoll-l mailing list Nhcoll-l at mailman.yale.edu https://mailman.yale.edu/mailman/listinfo/nhcoll-l _______________________________________________ NHCOLL-L is brought to you by the Society for the Preservation of Natural History Collections (SPNHC), an international society whose mission is to improve the preservation, conservation and management of natural history collections to ensure their continuing value to society. See http://www.spnhc.org for membership information. Advertising on NH-COLL-L is inappropriate. -- [cid:image001.png at 01D6BF12.82CFA090] Dirk Neumann Tel: 089 / 8107-111 Fax: 089 / 8107-300 neumann(a)snsb.de Postanschrift: Staatliche Naturwissenschaftliche Sammlungen Bayerns Zoologische Staatssammlung M?nchen Dirk Neumann, Sektion Ichthyologie / DNA-Storage M?nchhausenstr. 21 81247 M?nchen Besuchen Sie unsere Sammlung: http://www.zsm.mwn.de/sektion/ichthyologie-home/ --------- Dirk Neumann Tel: +49-89-8107-111 Fax: +49-89-8107-300 neumann(a)snsb.de postal address: Bavarian Natural History Collections The Bavarian State Collection of Zoology Dirk Neumann, Section Ichthyology / DNA-Storage Muenchhausenstr. 21 81247 Munich (Germany) Visit our section at: http://www.zsm.mwn.de/sektion/ichthyologie-home/ -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image001.png Type: image/png Size: 8592 bytes Desc: image001.png URL: From neumann at snsb.de Fri Nov 20 08:43:00 2020 From: neumann at snsb.de (Dirk Neumann) Date: Fri, 20 Nov 2020 14:43:00 +0100 Subject: [Nhcoll-l] Jar liners In-Reply-To: References: <3ecde4298f344f7db2e7ba29824da34b@SRVBK13DB02.stadt.essen.de> Message-ID: Hi Paul, interesting observations! Do you know further details on the make-up of the F217 liners? Read this morning that they have an upper and lower PE-layer that shields the foam structure in between. Maybe that's why they remain rather stable? Metal lids: around the 1990ies some also used PE-foil as self-made inlay (often recycled from bags used to ship specimens), saw this in some collections, inherited this here, too. My observation is that moisture gets trapped between inlay & metal lids which seems to accelerate deterioration of metal lids (e.g. pinpoint rusting or rust that starts blooming along the inner liner. Without this, they metal lids can perform quite well (> 30 years in our collection), if they fail, they are easy to replace (standardised sizes, I lids costs less then 5 cent). All the best Dirk Am 20.11.2020 um 14:00 schrieb Callomon,Paul: > > We recently overhauled our 50,000-jar alcohol collection for the first > time in 50 years. We found the following things for lids on screw-top > jars: > > * Steel lids are problematic. Ours were painted black on the outside > and cadmium-plated inside with solid plastic seals. The seals had > almost all held, but the lids themselves had pinpoint rusting from > the inside due to condensation. If those pinpoints get through the > metal, the lid is more likely to fail. We?ve replaced them all. > * PPE lids with either solid PPE disks or F217 liners are both fine. > We started using them in the 1980s (PPE disks) and 1990s (F217) > and both have lasted well, with a failure rate below 1% > * Phenolic lids with coneseal liners ? very good. Bakelite and > phenolic lids with food-grade-paper (coated or foil-laminated > card) liners ? high failure rate. We replaced them all. > * Note that there is a difference between pure phenolic resin and > Bakelite. The latter has wood dust mixed with the resin, and > always fails over time, often suddenly and completely. You can > usually tell the difference by the gloss, color and size; Bakelite > is not as black or as glossy as phenolic. If it?s over 50 mm in > diameter it?s likely to be Bakelite. > * However, as Dirk points out, although phenolic resin is fine with > ethanol it can be affected by formaldehyde. We have also found > that phenolic will leach dark color into alcohol if it is immersed > for more than a year, so it?s clearly not entirely stable to > ethanol either. > > Finally, though they are not available in small sizes the most stable > and economical jars in our collection are bale jars with galvanized > steel bale clips and either natural rubber, butyl or neoprene gaskets > (e. g. ?Ball?-brand jars). These effectively never fail. > > *Paul Callomon MSc* > /Collection Manager, Malacology and General Invertebrates/ > > ------------------------------------------------------------------------ > > *Academy of Natural Sciences of Drexel University, Philadelphia*** > > 1900 Benjamin Franklin Parkway, Philadelphia PA 19103-1195, USA > /prc44 at drexel.edu Tel 215-405-5096 - Fax > 215-299-1170/ > > *From:*Nhcoll-l *On Behalf Of > *Neisskenwirth, Fabian > *Sent:* Friday, November 20, 2020 4:09 AM > *To:* 'neumann at snsb.de' ; nhcoll-l at mailman.yale.edu > *Subject:* Re: [Nhcoll-l] Jar liners > > *External.* > > Hey there, > > I totally agree with Dirks statement. Glass lids are much more stable > than any other kind of material used in fluid collections. > > I would like to share my experience with a sort of new jar type from > Duran? (former Schott). They have a product line called ?GLS 80? jars. > It has a mouth opening of 80 mm, but the size varies from 500ml to > 25000 ml. The mouth opening works very well for smaller specimens. > > The jars are made of borosilicate and sold at an affordable price, > because they are made for the pharma industry. This is why they also > have ?filling marks?, which esthetically speaking is not so nice, but > it still fulfills the purpose of the jar. One of the sales agents of > DWK (Duran Group), offered me that at a certain amount of jars, there > could be a batch (around 1000 jars) made without ?filling marks?. > > There is a new type of lid for this jars too, made of Polysulfone > (PSU) with a PTFE coated silicone liner. > > The Duran Group works worldwide, so if you have any questions > regarding this contact Eric Lehnen (eric.lehnen at dwk.com > ). He knows about the use of the jars for > collections purpose. > > This seems to be a very good improvement to move away from poor > quality ?sausage jars? with fast degrading lids. > > I have made a one year aging test with three jars with ethanol 70% > mixed with a buffered formaldehyde solution 3,4% (9:1) and have seen > no negative reactions on the lids. But this still should be tested > more thoroughly. > > Hope this helps you out! > > -- > > *Fabian Neisskenwirth* > > Zoologischer Pr?parator > > MA Student Restaurierung und Konservierung von Kulturgut > > +49 (0) 201 24681 470 > > *Stiftung Ruhr Museum* > > Fritz-Schupp-Allee 15 > > 45141 Essen > > www.ruhrmuseum.de > > > *Von:*Nhcoll-l [mailto:nhcoll-l-bounces at mailman.yale.edu > ] *Im Auftrag von *Dirk Neumann > *Gesendet:* Freitag, 20. November 2020 09:10 > *An:* nhcoll-l at mailman.yale.edu > *Betreff:* Re: [Nhcoll-l] Jar liners > > Hi Tonya & Lennart, > > I guess there are several layers to unfold here: > > Foamed liners - like the F217 liners you mention - consist of a foamed > cell structure which - if the lid is screwed down tight - is > compressed again the neck of the jar. This outs the cells under > pressure and closed cells would withstand this tension better then > open cell structures. It is hard to tell if the F217 liners you > mention has open or closed cells, which gas is used for filling of the > foam structure, etc. Even if the F217 liners would have the right > composition, right thickness, closed cells - it still a is > compressible gasket which has a limited life span. > > To produce a good closure, you would further need to consider the > threads on the jar (continuous or not), the composition of the lid > itself (the best liner does not help if the plastic used for the lid > itself is of poor quality, etc. Most important seems to me that sizes > of such lids are standardised (rather then customised for specific > jars), so that they can easily be replaced if they fail. This is one > of the huge problems many collections with Copehagen jars now face > after plastic lids reached the end of their life span, sized where > customised, company went out of production: it is virtually impossible > to replace these lids - which causes huge problems in many collections. > > It seems that F217 and PTFE liners are often used as inlays for > Phenolic caps (Bakelite) - which is a no-go in fluid collections > because this sort of thermoset plastics is easily degraded by residual > formaldehyde escaping from formaldehyde preserved specimens, even if > they have been transferred in to alcohol. As said: the best liner is > worthless if the plastic lid itself is unsuited. > > In general, plastic lids are not a good oxygen barrier - this is also > worth remembering, especially if specimens inside such jars release a > lot of fats or oils. > > Rather then concentrating on specific lids I would look into jars that > are designed for the pharmaceutical sector. Here, both the jar > (soda-lime glass) and the lid are expected (and usually tested) to > withstand a wide range of chemicals AND to provide a good barrier > against oxygen. > > There are different suppliers of such jars, the disadvantage of the > wide mouth jars however is that the largest opening in these jars is > 65 mm. So a good option for for 100 - 1000 ml jars, but not for larger > jars.? St?lzle (who also produce high quality borosilicate stoppered > jars) is a possible source for such jars, but there are many others as > well: https://pharma.stoelzle.com/en/product_category/weithalsglaser/ > > > > So as mostly no clear cut answer, but hopefully one that is useful. > > All the best > > Dirk > > Am 20.11.2020 um 00:29 schrieb Haff, Tonya (NCMI, Crace): > > Hi all, > > I know I?ve asked about this before, but may I please clarify > again?. Does anyone have preference regarding PTFE (e.g. Teflon, I > believe) lid liners vs F217 liners, which are layered polyethylene > (as far as I understand). Can anyone give me advice as to what > would be better as a lid liner for specimens kept in 70-90% EtOH? > Advice very appreciated! > > Cheers, > > Tonya > > --------------------------------------------------------- > > Dr Tonya Haff > > Collections Manager > > Australian National Wildlife Collection > > National Research Collections Australia, CSIRO > > Canberra, Australia > > Phone: (+61) 02 6242 1566 (office) > > (+61) 0419 569 109 (mobile) > > _______________________________________________ > > Nhcoll-l mailing list > > Nhcoll-l at mailman.yale.edu > > https://mailman.yale.edu/mailman/listinfo/nhcoll-l > > > _______________________________________________ > > NHCOLL-L is brought to you by the Society for the Preservation of > > Natural History Collections (SPNHC), an international society whose > > mission is to improve the preservation, conservation and management of > > natural history collections to ensure their continuing value to > > society. See http://www.spnhc.org > > for membership information. > > Advertising on NH-COLL-L is inappropriate. > > -- > > > Dirk Neumann > > Tel: 089 / 8107-111 > Fax: 089 / 8107-300 > neumann(a)snsb.de > > Postanschrift: > > Staatliche Naturwissenschaftliche Sammlungen Bayerns > Zoologische Staatssammlung M?nchen > Dirk Neumann, Sektion Ichthyologie / DNA-Storage > M?nchhausenstr. 21 > 81247 M?nchen > > Besuchen Sie unsere Sammlung: > http://www.zsm.mwn.de/sektion/ichthyologie-home/ > > > --------- > > Dirk Neumann > > Tel: +49-89-8107-111 > Fax: +49-89-8107-300 > neumann(a)snsb.de > > postal address: > > Bavarian Natural History Collections > The Bavarian State Collection of Zoology > Dirk Neumann, Section Ichthyology / DNA-Storage > Muenchhausenstr. 21 > 81247 Munich (Germany) > > Visit our section at: > http://www.zsm.mwn.de/sektion/ichthyologie-home/ > > -- Dirk Neumann Tel: 089 / 8107-111 Fax: 089 / 8107-300 neumann(a)snsb.de Postanschrift: Staatliche Naturwissenschaftliche Sammlungen Bayerns Zoologische Staatssammlung M?nchen Dirk Neumann, Sektion Ichthyologie / DNA-Storage M?nchhausenstr. 21 81247 M?nchen Besuchen Sie unsere Sammlung: http://www.zsm.mwn.de/sektion/ichthyologie-home/ --------- Dirk Neumann Tel: +49-89-8107-111 Fax: +49-89-8107-300 neumann(a)snsb.de postal address: Bavarian Natural History Collections The Bavarian State Collection of Zoology Dirk Neumann, Section Ichthyology / DNA-Storage Muenchhausenstr. 21 81247 Munich (Germany) Visit our section at: http://www.zsm.mwn.de/sektion/ichthyologie-home/ -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image001.png Type: image/png Size: 8592 bytes Desc: not available URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: imggaijepnoelcmk.png Type: image/png Size: 23308 bytes Desc: not available URL: From prc44 at drexel.edu Fri Nov 20 09:02:27 2020 From: prc44 at drexel.edu (Callomon,Paul) Date: Fri, 20 Nov 2020 14:02:27 +0000 Subject: [Nhcoll-l] Jar liners In-Reply-To: References: <3ecde4298f344f7db2e7ba29824da34b@SRVBK13DB02.stadt.essen.de> Message-ID: Yes, F217 liners have impermeable faces on both sides with a closed-cell foam in between. The principle is that the foam acts to press the liner into irregularities in the glass sealing face, not that the whole disk acts as a gasket. That is: where there are no irregularities, the liner is completely compressed; only where there are pits or scratches in the sealing surface does it expand into those. A gasket, by contrast, is never fully compressed; it acts as a bridging seal between different materials, such as an iron cylinder block and an aluminum cylinder head, or between different masses of the same material. PC From: Dirk Neumann Sent: Friday, November 20, 2020 8:43 AM To: Callomon,Paul ; Neisskenwirth, Fabian ; nhcoll-l at mailman.yale.edu Subject: Re: [Nhcoll-l] Jar liners External. Hi Paul, interesting observations! Do you know further details on the make-up of the F217 liners? Read this morning that they have an upper and lower PE-layer that shields the foam structure in between. Maybe that's why they remain rather stable? Metal lids: around the 1990ies some also used PE-foil as self-made inlay (often recycled from bags used to ship specimens), saw this in some collections, inherited this here, too. My observation is that moisture gets trapped between inlay & metal lids which seems to accelerate deterioration of metal lids (e.g. pinpoint rusting or rust that starts blooming along the inner liner. Without this, they metal lids can perform quite well (> 30 years in our collection), if they fail, they are easy to replace (standardised sizes, I lids costs less then 5 cent). All the best Dirk Am 20.11.2020 um 14:00 schrieb Callomon,Paul: We recently overhauled our 50,000-jar alcohol collection for the first time in 50 years. We found the following things for lids on screw-top jars: 1. Steel lids are problematic. Ours were painted black on the outside and cadmium-plated inside with solid plastic seals. The seals had almost all held, but the lids themselves had pinpoint rusting from the inside due to condensation. If those pinpoints get through the metal, the lid is more likely to fail. We've replaced them all. 2. PPE lids with either solid PPE disks or F217 liners are both fine. We started using them in the 1980s (PPE disks) and 1990s (F217) and both have lasted well, with a failure rate below 1% 3. Phenolic lids with coneseal liners - very good. Bakelite and phenolic lids with food-grade-paper (coated or foil-laminated card) liners - high failure rate. We replaced them all. 4. Note that there is a difference between pure phenolic resin and Bakelite. The latter has wood dust mixed with the resin, and always fails over time, often suddenly and completely. You can usually tell the difference by the gloss, color and size; Bakelite is not as black or as glossy as phenolic. If it's over 50 mm in diameter it's likely to be Bakelite. 5. However, as Dirk points out, although phenolic resin is fine with ethanol it can be affected by formaldehyde. We have also found that phenolic will leach dark color into alcohol if it is immersed for more than a year, so it's clearly not entirely stable to ethanol either. Finally, though they are not available in small sizes the most stable and economical jars in our collection are bale jars with galvanized steel bale clips and either natural rubber, butyl or neoprene gaskets (e. g. "Ball"-brand jars). These effectively never fail. Paul Callomon MSc Collection Manager, Malacology and General Invertebrates ________________________________ Academy of Natural Sciences of Drexel University, Philadelphia 1900 Benjamin Franklin Parkway, Philadelphia PA 19103-1195, USA prc44 at drexel.edu Tel 215-405-5096 - Fax 215-299-1170 From: Nhcoll-l On Behalf Of Neisskenwirth, Fabian Sent: Friday, November 20, 2020 4:09 AM To: 'neumann at snsb.de' ; nhcoll-l at mailman.yale.edu Subject: Re: [Nhcoll-l] Jar liners External. Hey there, I totally agree with Dirks statement. Glass lids are much more stable than any other kind of material used in fluid collections. I would like to share my experience with a sort of new jar type from Duran? (former Schott). They have a product line called "GLS 80" jars. It has a mouth opening of 80 mm, but the size varies from 500ml to 25000 ml. The mouth opening works very well for smaller specimens. The jars are made of borosilicate and sold at an affordable price, because they are made for the pharma industry. This is why they also have "filling marks", which esthetically speaking is not so nice, but it still fulfills the purpose of the jar. One of the sales agents of DWK (Duran Group), offered me that at a certain amount of jars, there could be a batch (around 1000 jars) made without "filling marks". There is a new type of lid for this jars too, made of Polysulfone (PSU) with a PTFE coated silicone liner. The Duran Group works worldwide, so if you have any questions regarding this contact Eric Lehnen (eric.lehnen at dwk.com). He knows about the use of the jars for collections purpose. This seems to be a very good improvement to move away from poor quality "sausage jars" with fast degrading lids. I have made a one year aging test with three jars with ethanol 70% mixed with a buffered formaldehyde solution 3,4% (9:1) and have seen no negative reactions on the lids. But this still should be tested more thoroughly. Hope this helps you out! -- Fabian Neisskenwirth Zoologischer Pr?parator MA Student Restaurierung und Konservierung von Kulturgut +49 (0) 201 24681 470 Stiftung Ruhr Museum Fritz-Schupp-Allee 15 45141 Essen www.ruhrmuseum.de Von: Nhcoll-l [mailto:nhcoll-l-bounces at mailman.yale.edu] Im Auftrag von Dirk Neumann Gesendet: Freitag, 20. November 2020 09:10 An: nhcoll-l at mailman.yale.edu Betreff: Re: [Nhcoll-l] Jar liners Hi Tonya & Lennart, I guess there are several layers to unfold here: Foamed liners - like the F217 liners you mention - consist of a foamed cell structure which - if the lid is screwed down tight - is compressed again the neck of the jar. This outs the cells under pressure and closed cells would withstand this tension better then open cell structures. It is hard to tell if the F217 liners you mention has open or closed cells, which gas is used for filling of the foam structure, etc. Even if the F217 liners would have the right composition, right thickness, closed cells - it still a is compressible gasket which has a limited life span. To produce a good closure, you would further need to consider the threads on the jar (continuous or not), the composition of the lid itself (the best liner does not help if the plastic used for the lid itself is of poor quality, etc. Most important seems to me that sizes of such lids are standardised (rather then customised for specific jars), so that they can easily be replaced if they fail. This is one of the huge problems many collections with Copehagen jars now face after plastic lids reached the end of their life span, sized where customised, company went out of production: it is virtually impossible to replace these lids - which causes huge problems in many collections. It seems that F217 and PTFE liners are often used as inlays for Phenolic caps (Bakelite) - which is a no-go in fluid collections because this sort of thermoset plastics is easily degraded by residual formaldehyde escaping from formaldehyde preserved specimens, even if they have been transferred in to alcohol. As said: the best liner is worthless if the plastic lid itself is unsuited. In general, plastic lids are not a good oxygen barrier - this is also worth remembering, especially if specimens inside such jars release a lot of fats or oils. Rather then concentrating on specific lids I would look into jars that are designed for the pharmaceutical sector. Here, both the jar (soda-lime glass) and the lid are expected (and usually tested) to withstand a wide range of chemicals AND to provide a good barrier against oxygen. There are different suppliers of such jars, the disadvantage of the wide mouth jars however is that the largest opening in these jars is 65 mm. So a good option for for 100 - 1000 ml jars, but not for larger jars. St?lzle (who also produce high quality borosilicate stoppered jars) is a possible source for such jars, but there are many others as well: https://pharma.stoelzle.com/en/product_category/weithalsglaser/ So as mostly no clear cut answer, but hopefully one that is useful. All the best Dirk Am 20.11.2020 um 00:29 schrieb Haff, Tonya (NCMI, Crace): Hi all, I know I've asked about this before, but may I please clarify again.... Does anyone have preference regarding PTFE (e.g. Teflon, I believe) lid liners vs F217 liners, which are layered polyethylene (as far as I understand). Can anyone give me advice as to what would be better as a lid liner for specimens kept in 70-90% EtOH? Advice very appreciated! Cheers, Tonya --------------------------------------------------------- Dr Tonya Haff Collections Manager Australian National Wildlife Collection National Research Collections Australia, CSIRO Canberra, Australia Phone: (+61) 02 6242 1566 (office) (+61) 0419 569 109 (mobile) _______________________________________________ Nhcoll-l mailing list Nhcoll-l at mailman.yale.edu https://mailman.yale.edu/mailman/listinfo/nhcoll-l _______________________________________________ NHCOLL-L is brought to you by the Society for the Preservation of Natural History Collections (SPNHC), an international society whose mission is to improve the preservation, conservation and management of natural history collections to ensure their continuing value to society. See http://www.spnhc.org for membership information. Advertising on NH-COLL-L is inappropriate. -- [cid:image001.png at 01D6BF1B.D55F67B0] Dirk Neumann Tel: 089 / 8107-111 Fax: 089 / 8107-300 neumann(a)snsb.de Postanschrift: Staatliche Naturwissenschaftliche Sammlungen Bayerns Zoologische Staatssammlung M?nchen Dirk Neumann, Sektion Ichthyologie / DNA-Storage M?nchhausenstr. 21 81247 M?nchen Besuchen Sie unsere Sammlung: http://www.zsm.mwn.de/sektion/ichthyologie-home/ --------- Dirk Neumann Tel: +49-89-8107-111 Fax: +49-89-8107-300 neumann(a)snsb.de postal address: Bavarian Natural History Collections The Bavarian State Collection of Zoology Dirk Neumann, Section Ichthyology / DNA-Storage Muenchhausenstr. 21 81247 Munich (Germany) Visit our section at: http://www.zsm.mwn.de/sektion/ichthyologie-home/ -- [cid:image002.png at 01D6BF1B.DD8BD7C0] Dirk Neumann Tel: 089 / 8107-111 Fax: 089 / 8107-300 neumann(a)snsb.de Postanschrift: Staatliche Naturwissenschaftliche Sammlungen Bayerns Zoologische Staatssammlung M?nchen Dirk Neumann, Sektion Ichthyologie / DNA-Storage M?nchhausenstr. 21 81247 M?nchen Besuchen Sie unsere Sammlung: http://www.zsm.mwn.de/sektion/ichthyologie-home/ --------- Dirk Neumann Tel: +49-89-8107-111 Fax: +49-89-8107-300 neumann(a)snsb.de postal address: Bavarian Natural History Collections The Bavarian State Collection of Zoology Dirk Neumann, Section Ichthyology / DNA-Storage Muenchhausenstr. 21 81247 Munich (Germany) Visit our section at: http://www.zsm.mwn.de/sektion/ichthyologie-home/ -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image001.png Type: image/png Size: 8592 bytes Desc: image001.png URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image002.png Type: image/png Size: 8606 bytes Desc: image002.png URL: From rhrobins at flmnh.ufl.edu Fri Nov 20 09:54:43 2020 From: rhrobins at flmnh.ufl.edu (Rob Robins) Date: Fri, 20 Nov 2020 14:54:43 +0000 Subject: [Nhcoll-l] Jar liners In-Reply-To: References: <3ecde4298f344f7db2e7ba29824da34b@SRVBK13DB02.stadt.essen.de> Message-ID: Hi Folks, Would like to contribute an observation on the bail top jars - I agree that the seals are excellent at resisting evaporation, with a major caveat: the gaskets deteriorate (at least gaskets of the type that came to us via a large relinquished collection in the 1980s). See image 1. Nearly all bail tops in our care require a levering tool to break the seal between glass and gasket (>90%), such as a stout short-bladed paint scraper. Using the tool safely takes knowhow and dexterity (brute force will work but with the attendant risk of impaling one's hand with the tool - and thus is strongly cautioned against). See image 2. Following jar opening, old gaskets on these old bail tops at UF are unredeemable (99% of the time). Exposed parts of the gasket are usually brittle and flake away, while the gasket that comprised the seal that lasted decades may be fully or partly molded to the jar - totally affixed. This latter circumstance renders the jar worthless, as no replacement gasket can be placed upon such an irregular surface. See images 3 and 4. For these reasons and others, whenever we work with bail top specimen lots, we replace the jars with screw top containers -- usually at a space savings (note Paul's comment about a limited offering of rather large sizes). If the above situation is only avoided with regular replacement of gaskets - that needs to be considered as ongoing maintenance costs associated with the use of this jar type. But perhaps local conditions have not always been ideal and thus the gaskets degraded more rapidly than they do under ideal conditions. If so, that also should be considered by those collections whose facilities can't always meet optimal conditions. It could also be our gaskets are of an inferior material, since improved upon or replaced by manufacturers of these containers systems. I am unclear on these points and look forward to learning more. Best wishes, Rob Robert H. Robins Collection Manager Division of Ichthyology [FLMNH Fishes logo email small] Florida Museum of Natural History 1659 Museum Rd. Gainesville, FL 32611-7800 Office: (352) 273-1957 rhrobins at flmnh.ufl.edu Search the Collection: http://specifyportal.flmnh.ufl.edu/fishes/ Search samples suitable for dna analysis: https://www.floridamuseum.ufl.edu/grr/holdings/ [cid:image001.jpg at 01D6BF23.2A907880] [cid:image008.jpg at 01D6BF23.2A907880] From: Nhcoll-l On Behalf Of Callomon,Paul Sent: Friday, November 20, 2020 8:00 AM To: Neisskenwirth, Fabian ; 'neumann at snsb.de' ; nhcoll-l at mailman.yale.edu Subject: Re: [Nhcoll-l] Jar liners [External Email] We recently overhauled our 50,000-jar alcohol collection for the first time in 50 years. We found the following things for lids on screw-top jars: * Steel lids are problematic. Ours were painted black on the outside and cadmium-plated inside with solid plastic seals. The seals had almost all held, but the lids themselves had pinpoint rusting from the inside due to condensation. If those pinpoints get through the metal, the lid is more likely to fail. We've replaced them all. * PPE lids with either solid PPE disks or F217 liners are both fine. We started using them in the 1980s (PPE disks) and 1990s (F217) and both have lasted well, with a failure rate below 1% * Phenolic lids with coneseal liners - very good. Bakelite and phenolic lids with food-grade-paper (coated or foil-laminated card) liners - high failure rate. We replaced them all. * Note that there is a difference between pure phenolic resin and Bakelite. The latter has wood dust mixed with the resin, and always fails over time, often suddenly and completely. You can usually tell the difference by the gloss, color and size; Bakelite is not as black or as glossy as phenolic. If it's over 50 mm in diameter it's likely to be Bakelite. * However, as Dirk points out, although phenolic resin is fine with ethanol it can be affected by formaldehyde. We have also found that phenolic will leach dark color into alcohol if it is immersed for more than a year, so it's clearly not entirely stable to ethanol either. Finally, though they are not available in small sizes the most stable and economical jars in our collection are bale jars with galvanized steel bale clips and either natural rubber, butyl or neoprene gaskets (e. g. "Ball"-brand jars). These effectively never fail. Paul Callomon MSc Collection Manager, Malacology and General Invertebrates ________________________________ Academy of Natural Sciences of Drexel University, Philadelphia 1900 Benjamin Franklin Parkway, Philadelphia PA 19103-1195, USA prc44 at drexel.edu Tel 215-405-5096 - Fax 215-299-1170 From: Nhcoll-l > On Behalf Of Neisskenwirth, Fabian Sent: Friday, November 20, 2020 4:09 AM To: 'neumann at snsb.de' >; nhcoll-l at mailman.yale.edu Subject: Re: [Nhcoll-l] Jar liners External. Hey there, I totally agree with Dirks statement. Glass lids are much more stable than any other kind of material used in fluid collections. I would like to share my experience with a sort of new jar type from Duran? (former Schott). They have a product line called "GLS 80" jars. It has a mouth opening of 80 mm, but the size varies from 500ml to 25000 ml. The mouth opening works very well for smaller specimens. The jars are made of borosilicate and sold at an affordable price, because they are made for the pharma industry. This is why they also have "filling marks", which esthetically speaking is not so nice, but it still fulfills the purpose of the jar. One of the sales agents of DWK (Duran Group), offered me that at a certain amount of jars, there could be a batch (around 1000 jars) made without "filling marks". There is a new type of lid for this jars too, made of Polysulfone (PSU) with a PTFE coated silicone liner. The Duran Group works worldwide, so if you have any questions regarding this contact Eric Lehnen (eric.lehnen at dwk.com). He knows about the use of the jars for collections purpose. This seems to be a very good improvement to move away from poor quality "sausage jars" with fast degrading lids. I have made a one year aging test with three jars with ethanol 70% mixed with a buffered formaldehyde solution 3,4% (9:1) and have seen no negative reactions on the lids. But this still should be tested more thoroughly. Hope this helps you out! -- Fabian Neisskenwirth Zoologischer Pr?parator MA Student Restaurierung und Konservierung von Kulturgut +49 (0) 201 24681 470 Stiftung Ruhr Museum Fritz-Schupp-Allee 15 45141 Essen www.ruhrmuseum.de Von: Nhcoll-l [mailto:nhcoll-l-bounces at mailman.yale.edu] Im Auftrag von Dirk Neumann Gesendet: Freitag, 20. November 2020 09:10 An: nhcoll-l at mailman.yale.edu Betreff: Re: [Nhcoll-l] Jar liners Hi Tonya & Lennart, I guess there are several layers to unfold here: Foamed liners - like the F217 liners you mention - consist of a foamed cell structure which - if the lid is screwed down tight - is compressed again the neck of the jar. This outs the cells under pressure and closed cells would withstand this tension better then open cell structures. It is hard to tell if the F217 liners you mention has open or closed cells, which gas is used for filling of the foam structure, etc. Even if the F217 liners would have the right composition, right thickness, closed cells - it still a is compressible gasket which has a limited life span. To produce a good closure, you would further need to consider the threads on the jar (continuous or not), the composition of the lid itself (the best liner does not help if the plastic used for the lid itself is of poor quality, etc. Most important seems to me that sizes of such lids are standardised (rather then customised for specific jars), so that they can easily be replaced if they fail. This is one of the huge problems many collections with Copehagen jars now face after plastic lids reached the end of their life span, sized where customised, company went out of production: it is virtually impossible to replace these lids - which causes huge problems in many collections. It seems that F217 and PTFE liners are often used as inlays for Phenolic caps (Bakelite) - which is a no-go in fluid collections because this sort of thermoset plastics is easily degraded by residual formaldehyde escaping from formaldehyde preserved specimens, even if they have been transferred in to alcohol. As said: the best liner is worthless if the plastic lid itself is unsuited. In general, plastic lids are not a good oxygen barrier - this is also worth remembering, especially if specimens inside such jars release a lot of fats or oils. Rather then concentrating on specific lids I would look into jars that are designed for the pharmaceutical sector. Here, both the jar (soda-lime glass) and the lid are expected (and usually tested) to withstand a wide range of chemicals AND to provide a good barrier against oxygen. There are different suppliers of such jars, the disadvantage of the wide mouth jars however is that the largest opening in these jars is 65 mm. So a good option for for 100 - 1000 ml jars, but not for larger jars. St?lzle (who also produce high quality borosilicate stoppered jars) is a possible source for such jars, but there are many others as well: https://pharma.stoelzle.com/en/product_category/weithalsglaser/ So as mostly no clear cut answer, but hopefully one that is useful. All the best Dirk Am 20.11.2020 um 00:29 schrieb Haff, Tonya (NCMI, Crace): Hi all, I know I've asked about this before, but may I please clarify again.... Does anyone have preference regarding PTFE (e.g. Teflon, I believe) lid liners vs F217 liners, which are layered polyethylene (as far as I understand). Can anyone give me advice as to what would be better as a lid liner for specimens kept in 70-90% EtOH? Advice very appreciated! Cheers, Tonya --------------------------------------------------------- Dr Tonya Haff Collections Manager Australian National Wildlife Collection National Research Collections Australia, CSIRO Canberra, Australia Phone: (+61) 02 6242 1566 (office) (+61) 0419 569 109 (mobile) _______________________________________________ Nhcoll-l mailing list Nhcoll-l at mailman.yale.edu https://mailman.yale.edu/mailman/listinfo/nhcoll-l _______________________________________________ NHCOLL-L is brought to you by the Society for the Preservation of Natural History Collections (SPNHC), an international society whose mission is to improve the preservation, conservation and management of natural history collections to ensure their continuing value to society. See http://www.spnhc.org for membership information. Advertising on NH-COLL-L is inappropriate. -- [cid:image007.png at 01D6BF20.E5D29450] Dirk Neumann Tel: 089 / 8107-111 Fax: 089 / 8107-300 neumann(a)snsb.de Postanschrift: Staatliche Naturwissenschaftliche Sammlungen Bayerns Zoologische Staatssammlung M?nchen Dirk Neumann, Sektion Ichthyologie / DNA-Storage M?nchhausenstr. 21 81247 M?nchen Besuchen Sie unsere Sammlung: http://www.zsm.mwn.de/sektion/ichthyologie-home/ --------- Dirk Neumann Tel: +49-89-8107-111 Fax: +49-89-8107-300 neumann(a)snsb.de postal address: Bavarian Natural History Collections The Bavarian State Collection of Zoology Dirk Neumann, Section Ichthyology / DNA-Storage Muenchhausenstr. 21 81247 Munich (Germany) Visit our section at: http://www.zsm.mwn.de/sektion/ichthyologie-home/ -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... 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Name: Image 2_Bail top paint scraper for opening.jpg Type: image/jpeg Size: 185366 bytes Desc: Image 2_Bail top paint scraper for opening.jpg URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: Image 3_Bail top gasket condition with lid removed.jpg Type: image/jpeg Size: 204001 bytes Desc: Image 3_Bail top gasket condition with lid removed.jpg URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: Image 4_Bail top old gasket residue mild.jpg Type: image/jpeg Size: 212828 bytes Desc: Image 4_Bail top old gasket residue mild.jpg URL: From cjschmidt at fhsu.edu Fri Nov 20 09:59:01 2020 From: cjschmidt at fhsu.edu (Curtis Schmidt) Date: Fri, 20 Nov 2020 14:59:01 +0000 Subject: [Nhcoll-l] Jar liners In-Reply-To: References: <3ecde4298f344f7db2e7ba29824da34b@SRVBK13DB02.stadt.essen.de> , Message-ID: Hello everyone, I agree with Rob entirely on this one. We replace bail top, gasketed jars for these very reasons. I certainly would caution against using them moving forward. Just my $0.02. Curtis _________________________________ Curtis J. Schmidt Zoological Collections Manager Sternberg Museum of Natural History Instructor Department of Biological Sciences Fort Hays State University 3000 Sternberg Drive Hays, KS 67601 785-650-2447 (cell) ________________________________ ________________________________ From: Nhcoll-l on behalf of Rob Robins Sent: Friday, November 20, 2020 8:54 AM To: Callomon,Paul ; Neisskenwirth, Fabian ; 'neumann at snsb.de' ; nhcoll-l at mailman.yale.edu Subject: Re: [Nhcoll-l] Jar liners Hi Folks, Would like to contribute an observation on the bail top jars ? I agree that the seals are excellent at resisting evaporation, with a major caveat: the gaskets deteriorate (at least gaskets of the type that came to us via a large relinquished collection in the 1980s). See image 1. Nearly all bail tops in our care require a levering tool to break the seal between glass and gasket (>90%), such as a stout short-bladed paint scraper. Using the tool safely takes knowhow and dexterity (brute force will work but with the attendant risk of impaling one?s hand with the tool ? and thus is strongly cautioned against). See image 2. Following jar opening, old gaskets on these old bail tops at UF are unredeemable (99% of the time). Exposed parts of the gasket are usually brittle and flake away, while the gasket that comprised the seal that lasted decades may be fully or partly molded to the jar ? totally affixed. This latter circumstance renders the jar worthless, as no replacement gasket can be placed upon such an irregular surface. See images 3 and 4. For these reasons and others, whenever we work with bail top specimen lots, we replace the jars with screw top containers -- usually at a space savings (note Paul?s comment about a limited offering of rather large sizes). If the above situation is only avoided with regular replacement of gaskets ? that needs to be considered as ongoing maintenance costs associated with the use of this jar type. But perhaps local conditions have not always been ideal and thus the gaskets degraded more rapidly than they do under ideal conditions. If so, that also should be considered by those collections whose facilities can?t always meet optimal conditions. It could also be our gaskets are of an inferior material, since improved upon or replaced by manufacturers of these containers systems. I am unclear on these points and look forward to learning more. Best wishes, Rob Robert H. Robins Collection Manager Division of Ichthyology [FLMNH Fishes logo email small] Florida Museum of Natural History 1659 Museum Rd. Gainesville, FL 32611-7800 Office: (352) 273-1957 rhrobins at flmnh.ufl.edu Search the Collection: http://specifyportal.flmnh.ufl.edu/fishes/ Search samples suitable for dna analysis: https://www.floridamuseum.ufl.edu/grr/holdings/ [cid:image001.jpg at 01D6BF23.2A907880] [cid:image008.jpg at 01D6BF23.2A907880] From: Nhcoll-l On Behalf Of Callomon,Paul Sent: Friday, November 20, 2020 8:00 AM To: Neisskenwirth, Fabian ; 'neumann at snsb.de' ; nhcoll-l at mailman.yale.edu Subject: Re: [Nhcoll-l] Jar liners [External Email] We recently overhauled our 50,000-jar alcohol collection for the first time in 50 years. We found the following things for lids on screw-top jars: * Steel lids are problematic. Ours were painted black on the outside and cadmium-plated inside with solid plastic seals. The seals had almost all held, but the lids themselves had pinpoint rusting from the inside due to condensation. If those pinpoints get through the metal, the lid is more likely to fail. We?ve replaced them all. * PPE lids with either solid PPE disks or F217 liners are both fine. We started using them in the 1980s (PPE disks) and 1990s (F217) and both have lasted well, with a failure rate below 1% * Phenolic lids with coneseal liners ? very good. Bakelite and phenolic lids with food-grade-paper (coated or foil-laminated card) liners ? high failure rate. We replaced them all. * Note that there is a difference between pure phenolic resin and Bakelite. The latter has wood dust mixed with the resin, and always fails over time, often suddenly and completely. You can usually tell the difference by the gloss, color and size; Bakelite is not as black or as glossy as phenolic. If it?s over 50 mm in diameter it?s likely to be Bakelite. * However, as Dirk points out, although phenolic resin is fine with ethanol it can be affected by formaldehyde. We have also found that phenolic will leach dark color into alcohol if it is immersed for more than a year, so it?s clearly not entirely stable to ethanol either. Finally, though they are not available in small sizes the most stable and economical jars in our collection are bale jars with galvanized steel bale clips and either natural rubber, butyl or neoprene gaskets (e. g. ?Ball?-brand jars). These effectively never fail. Paul Callomon MSc Collection Manager, Malacology and General Invertebrates ________________________________ Academy of Natural Sciences of Drexel University, Philadelphia 1900 Benjamin Franklin Parkway, Philadelphia PA 19103-1195, USA prc44 at drexel.edu Tel 215-405-5096 - Fax 215-299-1170 From: Nhcoll-l > On Behalf Of Neisskenwirth, Fabian Sent: Friday, November 20, 2020 4:09 AM To: 'neumann at snsb.de' >; nhcoll-l at mailman.yale.edu Subject: Re: [Nhcoll-l] Jar liners External. Hey there, I totally agree with Dirks statement. Glass lids are much more stable than any other kind of material used in fluid collections. I would like to share my experience with a sort of new jar type from Duran? (former Schott). They have a product line called ?GLS 80? jars. It has a mouth opening of 80 mm, but the size varies from 500ml to 25000 ml. The mouth opening works very well for smaller specimens. The jars are made of borosilicate and sold at an affordable price, because they are made for the pharma industry. This is why they also have ?filling marks?, which esthetically speaking is not so nice, but it still fulfills the purpose of the jar. One of the sales agents of DWK (Duran Group), offered me that at a certain amount of jars, there could be a batch (around 1000 jars) made without ?filling marks?. There is a new type of lid for this jars too, made of Polysulfone (PSU) with a PTFE coated silicone liner. The Duran Group works worldwide, so if you have any questions regarding this contact Eric Lehnen (eric.lehnen at dwk.com). He knows about the use of the jars for collections purpose. This seems to be a very good improvement to move away from poor quality ?sausage jars? with fast degrading lids. I have made a one year aging test with three jars with ethanol 70% mixed with a buffered formaldehyde solution 3,4% (9:1) and have seen no negative reactions on the lids. But this still should be tested more thoroughly. Hope this helps you out! -- Fabian Neisskenwirth Zoologischer Pr?parator MA Student Restaurierung und Konservierung von Kulturgut +49 (0) 201 24681 470 Stiftung Ruhr Museum Fritz-Schupp-Allee 15 45141 Essen www.ruhrmuseum.de Von: Nhcoll-l [mailto:nhcoll-l-bounces at mailman.yale.edu] Im Auftrag von Dirk Neumann Gesendet: Freitag, 20. November 2020 09:10 An: nhcoll-l at mailman.yale.edu Betreff: Re: [Nhcoll-l] Jar liners Hi Tonya & Lennart, I guess there are several layers to unfold here: Foamed liners - like the F217 liners you mention - consist of a foamed cell structure which - if the lid is screwed down tight - is compressed again the neck of the jar. This outs the cells under pressure and closed cells would withstand this tension better then open cell structures. It is hard to tell if the F217 liners you mention has open or closed cells, which gas is used for filling of the foam structure, etc. Even if the F217 liners would have the right composition, right thickness, closed cells - it still a is compressible gasket which has a limited life span. To produce a good closure, you would further need to consider the threads on the jar (continuous or not), the composition of the lid itself (the best liner does not help if the plastic used for the lid itself is of poor quality, etc. Most important seems to me that sizes of such lids are standardised (rather then customised for specific jars), so that they can easily be replaced if they fail. This is one of the huge problems many collections with Copehagen jars now face after plastic lids reached the end of their life span, sized where customised, company went out of production: it is virtually impossible to replace these lids - which causes huge problems in many collections. It seems that F217 and PTFE liners are often used as inlays for Phenolic caps (Bakelite) - which is a no-go in fluid collections because this sort of thermoset plastics is easily degraded by residual formaldehyde escaping from formaldehyde preserved specimens, even if they have been transferred in to alcohol. As said: the best liner is worthless if the plastic lid itself is unsuited. In general, plastic lids are not a good oxygen barrier - this is also worth remembering, especially if specimens inside such jars release a lot of fats or oils. Rather then concentrating on specific lids I would look into jars that are designed for the pharmaceutical sector. Here, both the jar (soda-lime glass) and the lid are expected (and usually tested) to withstand a wide range of chemicals AND to provide a good barrier against oxygen. There are different suppliers of such jars, the disadvantage of the wide mouth jars however is that the largest opening in these jars is 65 mm. So a good option for for 100 - 1000 ml jars, but not for larger jars. St?lzle (who also produce high quality borosilicate stoppered jars) is a possible source for such jars, but there are many others as well: https://pharma.stoelzle.com/en/product_category/weithalsglaser/ So as mostly no clear cut answer, but hopefully one that is useful. All the best Dirk Am 20.11.2020 um 00:29 schrieb Haff, Tonya (NCMI, Crace): Hi all, I know I?ve asked about this before, but may I please clarify again?. Does anyone have preference regarding PTFE (e.g. Teflon, I believe) lid liners vs F217 liners, which are layered polyethylene (as far as I understand). Can anyone give me advice as to what would be better as a lid liner for specimens kept in 70-90% EtOH? Advice very appreciated! Cheers, Tonya --------------------------------------------------------- Dr Tonya Haff Collections Manager Australian National Wildlife Collection National Research Collections Australia, CSIRO Canberra, Australia Phone: (+61) 02 6242 1566 (office) (+61) 0419 569 109 (mobile) _______________________________________________ Nhcoll-l mailing list Nhcoll-l at mailman.yale.edu https://mailman.yale.edu/mailman/listinfo/nhcoll-l _______________________________________________ NHCOLL-L is brought to you by the Society for the Preservation of Natural History Collections (SPNHC), an international society whose mission is to improve the preservation, conservation and management of natural history collections to ensure their continuing value to society. See http://www.spnhc.org for membership information. Advertising on NH-COLL-L is inappropriate. -- [cid:image007.png at 01D6BF20.E5D29450] Dirk Neumann Tel: 089 / 8107-111 Fax: 089 / 8107-300 neumann(a)snsb.de Postanschrift: Staatliche Naturwissenschaftliche Sammlungen Bayerns Zoologische Staatssammlung M?nchen Dirk Neumann, Sektion Ichthyologie / DNA-Storage M?nchhausenstr. 21 81247 M?nchen Besuchen Sie unsere Sammlung: http://www.zsm.mwn.de/sektion/ichthyologie-home/ --------- Dirk Neumann Tel: +49-89-8107-111 Fax: +49-89-8107-300 neumann(a)snsb.de postal address: Bavarian Natural History Collections The Bavarian State Collection of Zoology Dirk Neumann, Section Ichthyology / DNA-Storage Muenchhausenstr. 21 81247 Munich (Germany) Visit our section at: http://www.zsm.mwn.de/sektion/ichthyologie-home/ -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image002.jpg Type: image/jpeg Size: 4940 bytes Desc: image002.jpg URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image007.png Type: image/png Size: 8592 bytes Desc: image007.png URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image001.jpg Type: image/jpeg Size: 14842 bytes Desc: image001.jpg URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image008.jpg Type: image/jpeg Size: 4855 bytes Desc: image008.jpg URL: From couteaufin at btinternet.com Fri Nov 20 10:05:11 2020 From: couteaufin at btinternet.com (Simon Moore) Date: Fri, 20 Nov 2020 15:05:11 +0000 Subject: [Nhcoll-l] Jar liners In-Reply-To: References: <3ecde4298f344f7db2e7ba29824da34b@SRVBK13DB02.stadt.essen.de> Message-ID: <6FCFD022-D12D-42BE-8B2F-23EBB6AC942D@btinternet.com> Now for my 2d worth! The bail jar (Le Parfait / Triomphe) gaskets were updated some years ago by changing to black EPD monomer (good bit nearly impossibly to put on the jars) or a blue colour (unsure what this comprised) then a white butadiene rubber and which seems to solve all problems. The old orange ones which I think were latex-based did eventually have issues, they either cracked or ?melted' into the fluid. With all good wishes, Simon Moore MIScT, RSci, FLS, ACR Conservator of Natural Sciences and Cutlery Historian, www.natural-history-conservation.com > On 20 Nov 2020, at 14:59, Curtis Schmidt wrote: > > Hello everyone, > > I agree with Rob entirely on this one. We replace bail top, gasketed jars for these very reasons. I certainly would caution against using them moving forward. Just my $0.02. > > Curtis > > _________________________________ > > Curtis J. Schmidt > Zoological Collections Manager > Sternberg Museum of Natural History > > Instructor > Department of Biological Sciences > Fort Hays State University > > 3000 Sternberg Drive > Hays, KS 67601 > 785-650-2447 (cell) > ________________________________ > From: Nhcoll-l on behalf of Rob Robins > Sent: Friday, November 20, 2020 8:54 AM > To: Callomon,Paul ; Neisskenwirth, Fabian ; 'neumann at snsb.de' ; nhcoll-l at mailman.yale.edu > Subject: Re: [Nhcoll-l] Jar liners > > Hi Folks, > Would like to contribute an observation on the bail top jars ? I agree that the seals are excellent at resisting evaporation, with a major caveat: the gaskets deteriorate (at least gaskets of the type that came to us via a large relinquished collection in the 1980s). > > See image 1. > > Nearly all bail tops in our care require a levering tool to break the seal between glass and gasket (>90%), such as a stout short-bladed paint scraper. Using the tool safely takes knowhow and dexterity (brute force will work but with the attendant risk of impaling one?s hand with the tool ? and thus is strongly cautioned against). > > See image 2. > > Following jar opening, old gaskets on these old bail tops at UF are unredeemable (99% of the time). Exposed parts of the gasket are usually brittle and flake away, while the gasket that comprised the seal that lasted decades may be fully or partly molded to the jar ? totally affixed. This latter circumstance renders the jar worthless, as no replacement gasket can be placed upon such an irregular surface. > > See images 3 and 4. > > For these reasons and others, whenever we work with bail top specimen lots, we replace the jars with screw top containers -- usually at a space savings (note Paul?s comment about a limited offering of rather large sizes). > > If the above situation is only avoided with regular replacement of gaskets ? that needs to be considered as ongoing maintenance costs associated with the use of this jar type. > > But perhaps local conditions have not always been ideal and thus the gaskets degraded more rapidly than they do under ideal conditions. If so, that also should be considered by those collections whose facilities can?t always meet optimal conditions. > > It could also be our gaskets are of an inferior material, since improved upon or replaced by manufacturers of these containers systems. > > I am unclear on these points and look forward to learning more. > > Best wishes, > > Rob > > Robert H. Robins > Collection Manager > Division of Ichthyology > > Florida Museum of Natural History > 1659 Museum Rd. > Gainesville, FL 32611-7800 > Office: (352) 273-1957 > rhrobins at flmnh.ufl.edu > > Search the Collection: > http://specifyportal.flmnh.ufl.edu/fishes/ > > Search samples suitable for dna analysis: > https://www.floridamuseum.ufl.edu/grr/holdings/ > > > > From: Nhcoll-l On Behalf Of Callomon,Paul > Sent: Friday, November 20, 2020 8:00 AM > To: Neisskenwirth, Fabian ; 'neumann at snsb.de' ; nhcoll-l at mailman.yale.edu > Subject: Re: [Nhcoll-l] Jar liners > > [External Email] > We recently overhauled our 50,000-jar alcohol collection for the first time in 50 years. We found the following things for lids on screw-top jars: > > ? Steel lids are problematic. Ours were painted black on the outside and cadmium-plated inside with solid plastic seals. The seals had almost all held, but the lids themselves had pinpoint rusting from the inside due to condensation. If those pinpoints get through the metal, the lid is more likely to fail. We?ve replaced them all. > ? PPE lids with either solid PPE disks or F217 liners are both fine. We started using them in the 1980s (PPE disks) and 1990s (F217) and both have lasted well, with a failure rate below 1% > ? Phenolic lids with coneseal liners ? very good. Bakelite and phenolic lids with food-grade-paper (coated or foil-laminated card) liners ? high failure rate. We replaced them all. > ? Note that there is a difference between pure phenolic resin and Bakelite. The latter has wood dust mixed with the resin, and always fails over time, often suddenly and completely. You can usually tell the difference by the gloss, color and size; Bakelite is not as black or as glossy as phenolic. If it?s over 50 mm in diameter it?s likely to be Bakelite. > ? However, as Dirk points out, although phenolic resin is fine with ethanol it can be affected by formaldehyde. We have also found that phenolic will leach dark color into alcohol if it is immersed for more than a year, so it?s clearly not entirely stable to ethanol either. > > Finally, though they are not available in small sizes the most stable and economical jars in our collection are bale jars with galvanized steel bale clips and either natural rubber, butyl or neoprene gaskets (e. g. ?Ball?-brand jars). These effectively never fail. > > > Paul Callomon MSc > Collection Manager, Malacology and General Invertebrates > Academy of Natural Sciences of Drexel University, Philadelphia > 1900 Benjamin Franklin Parkway, Philadelphia PA 19103-1195, USA > prc44 at drexel.edu Tel 215-405-5096 - Fax 215-299-1170 > > > > From: Nhcoll-l On Behalf Of Neisskenwirth, Fabian > Sent: Friday, November 20, 2020 4:09 AM > To: 'neumann at snsb.de' ; nhcoll-l at mailman.yale.edu > Subject: Re: [Nhcoll-l] Jar liners > > External. > Hey there, > > I totally agree with Dirks statement. Glass lids are much more stable than any other kind of material used in fluid collections. > > I would like to share my experience with a sort of new jar type from Duran? (former Schott). They have a product line called ?GLS 80? jars. It has a mouth opening of 80 mm, but the size varies from 500ml to 25000 ml. The mouth opening works very well for smaller specimens. > > The jars are made of borosilicate and sold at an affordable price, because they are made for the pharma industry. This is why they also have ?filling marks?, which esthetically speaking is not so nice, but it still fulfills the purpose of the jar. One of the sales agents of DWK (Duran Group), offered me that at a certain amount of jars, there could be a batch (around 1000 jars) made without ?filling marks?. > There is a new type of lid for this jars too, made of Polysulfone (PSU) with a PTFE coated silicone liner. > > The Duran Group works worldwide, so if you have any questions regarding this contact Eric Lehnen (eric.lehnen at dwk.com). He knows about the use of the jars for collections purpose. > > This seems to be a very good improvement to move away from poor quality ?sausage jars? with fast degrading lids. > > I have made a one year aging test with three jars with ethanol 70% mixed with a buffered formaldehyde solution 3,4% (9:1) and have seen no negative reactions on the lids. But this still should be tested more thoroughly. > > > Hope this helps you out! > > > -- > Fabian Neisskenwirth > Zoologischer Pr?parator > MA Student Restaurierung und Konservierung von Kulturgut > > +49 (0) 201 24681 470 > Stiftung Ruhr Museum > Fritz-Schupp-Allee 15 > 45141 Essen > www.ruhrmuseum.de > > > Von: Nhcoll-l [mailto:nhcoll-l-bounces at mailman.yale.edu] Im Auftrag von Dirk Neumann > Gesendet: Freitag, 20. November 2020 09:10 > An: nhcoll-l at mailman.yale.edu > Betreff: Re: [Nhcoll-l] Jar liners > > Hi Tonya & Lennart, > > I guess there are several layers to unfold here: > Foamed liners - like the F217 liners you mention - consist of a foamed cell structure which - if the lid is screwed down tight - is compressed again the neck of the jar. This outs the cells under pressure and closed cells would withstand this tension better then open cell structures. It is hard to tell if the F217 liners you mention has open or closed cells, which gas is used for filling of the foam structure, etc. Even if the F217 liners would have the right composition, right thickness, closed cells - it still a is compressible gasket which has a limited life span. > To produce a good closure, you would further need to consider the threads on the jar (continuous or not), the composition of the lid itself (the best liner does not help if the plastic used for the lid itself is of poor quality, etc. Most important seems to me that sizes of such lids are standardised (rather then customised for specific jars), so that they can easily be replaced if they fail. This is one of the huge problems many collections with Copehagen jars now face after plastic lids reached the end of their life span, sized where customised, company went out of production: it is virtually impossible to replace these lids - which causes huge problems in many collections. > It seems that F217 and PTFE liners are often used as inlays for Phenolic caps (Bakelite) - which is a no-go in fluid collections because this sort of thermoset plastics is easily degraded by residual formaldehyde escaping from formaldehyde preserved specimens, even if they have been transferred in to alcohol. As said: the best liner is worthless if the plastic lid itself is unsuited. > In general, plastic lids are not a good oxygen barrier - this is also worth remembering, especially if specimens inside such jars release a lot of fats or oils. > Rather then concentrating on specific lids I would look into jars that are designed for the pharmaceutical sector. Here, both the jar (soda-lime glass) and the lid are expected (and usually tested) to withstand a wide range of chemicals AND to provide a good barrier against oxygen. > There are different suppliers of such jars, the disadvantage of the wide mouth jars however is that the largest opening in these jars is 65 mm. So a good option for for 100 - 1000 ml jars, but not for larger jars. St?lzle (who also produce high quality borosilicate stoppered jars) is a possible source for such jars, but there are many others as well: https://pharma.stoelzle.com/en/product_category/weithalsglaser/ > So as mostly no clear cut answer, but hopefully one that is useful. > All the best > Dirk > > > > Am 20.11.2020 um 00:29 schrieb Haff, Tonya (NCMI, Crace): > Hi all, > > I know I?ve asked about this before, but may I please clarify again?. Does anyone have preference regarding PTFE (e.g. Teflon, I believe) lid liners vs F217 liners, which are layered polyethylene (as far as I understand). Can anyone give me advice as to what would be better as a lid liner for specimens kept in 70-90% EtOH? Advice very appreciated! > > Cheers, > > Tonya > > --------------------------------------------------------- > Dr Tonya Haff > Collections Manager > Australian National Wildlife Collection > National Research Collections Australia, CSIRO > Canberra, Australia > Phone: (+61) 02 6242 1566 (office) > (+61) 0419 569 109 (mobile) > > > _______________________________________________ > Nhcoll-l mailing list > Nhcoll-l at mailman.yale.edu > https://mailman.yale.edu/mailman/listinfo/nhcoll-l > > _______________________________________________ > NHCOLL-L is brought to you by the Society for the Preservation of > Natural History Collections (SPNHC), an international society whose > mission is to improve the preservation, conservation and management of > natural history collections to ensure their continuing value to > society. See http://www.spnhc.org for membership information. > Advertising on NH-COLL-L is inappropriate. > > -- > > > Dirk Neumann > > Tel: 089 / 8107-111 > Fax: 089 / 8107-300 > neumann(a)snsb.de > > Postanschrift: > > Staatliche Naturwissenschaftliche Sammlungen Bayerns > Zoologische Staatssammlung M?nchen > Dirk Neumann, Sektion Ichthyologie / DNA-Storage > M?nchhausenstr. 21 > 81247 M?nchen > > Besuchen Sie unsere Sammlung: > http://www.zsm.mwn.de/sektion/ichthyologie-home/ > > --------- > > Dirk Neumann > > Tel: +49-89-8107-111 > Fax: +49-89-8107-300 > neumann(a)snsb.de > > postal address: > > Bavarian Natural History Collections > The Bavarian State Collection of Zoology > Dirk Neumann, Section Ichthyology / DNA-Storage > Muenchhausenstr. 21 > 81247 Munich (Germany) > > Visit our section at: > http://www.zsm.mwn.de/sektion/ichthyologie-home/ > > _______________________________________________ > Nhcoll-l mailing list > Nhcoll-l at mailman.yale.edu > https://mailman.yale.edu/mailman/listinfo/nhcoll-l > > _______________________________________________ > NHCOLL-L is brought to you by the Society for the Preservation of > Natural History Collections (SPNHC), an international society whose > mission is to improve the preservation, conservation and management of > natural history collections to ensure their continuing value to > society. See http://www.spnhc.org for membership information. > Advertising on NH-COLL-L is inappropriate. -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: PastedGraphic-4.tiff Type: image/tiff Size: 38900 bytes Desc: not available URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: MA logo.jpeg Type: image/jpeg Size: 11642 bytes Desc: not available URL: From prc44 at drexel.edu Fri Nov 20 10:18:49 2020 From: prc44 at drexel.edu (Callomon,Paul) Date: Fri, 20 Nov 2020 15:18:49 +0000 Subject: [Nhcoll-l] Jar liners In-Reply-To: References: <3ecde4298f344f7db2e7ba29824da34b@SRVBK13DB02.stadt.essen.de> , Message-ID: Hi Rob and Curtis, Note in Rob's examples that although the gasket has hardened and cracked where it is not compressed, it has not failed! They don't; the rubber bonds to the glass. Getting the lid off is thus tricky, but warming the whole jar a bit helps. I too use a scraper like Rob's; work one corner in between the rubber and glass, twist a bit and the whole thing usually just pops off. Once you have the lid off, though, don't discard the jar. Soak it in a weak solution (a teaspoon in a gallon [3.8 l] of water) of Trisodium phosphate (I use Alconox-brand laboratory detergent) for a couple of days and the rubber remnants will just fall right off. This works for old labels and other residues too; Alconox is amazingly penetrative if you give it time to work. Once the jar dries, this treatment will also reveal if there is any "crizzling", which is the deterioration of soda glass through the leaching of sodium compounds out of the silicate matrix. It looks like a pale film on the inside of the jar. If it's bad, you probably want to discard the jar. Paul Callomon MSc Collection Manager, Malacology and General Invertebrates ________________________________ Academy of Natural Sciences of Drexel University, Philadelphia 1900 Benjamin Franklin Parkway, Philadelphia PA 19103-1195, USA prc44 at drexel.edu Tel 215-405-5096 - Fax 215-299-1170 From: Curtis Schmidt Sent: Friday, November 20, 2020 9:59 AM To: Rob Robins ; Callomon,Paul ; Neisskenwirth, Fabian ; 'neumann at snsb.de' ; nhcoll-l at mailman.yale.edu Subject: Re: [Nhcoll-l] Jar liners External. Hello everyone, I agree with Rob entirely on this one. We replace bail top, gasketed jars for these very reasons. I certainly would caution against using them moving forward. Just my $0.02. Curtis _________________________________ Curtis J. Schmidt Zoological Collections Manager Sternberg Museum of Natural History Instructor Department of Biological Sciences Fort Hays State University 3000 Sternberg Drive Hays, KS 67601 785-650-2447 (cell) ________________________________ ________________________________ From: Nhcoll-l > on behalf of Rob Robins > Sent: Friday, November 20, 2020 8:54 AM To: Callomon,Paul >; Neisskenwirth, Fabian >; 'neumann at snsb.de' >; nhcoll-l at mailman.yale.edu > Subject: Re: [Nhcoll-l] Jar liners Hi Folks, Would like to contribute an observation on the bail top jars - I agree that the seals are excellent at resisting evaporation, with a major caveat: the gaskets deteriorate (at least gaskets of the type that came to us via a large relinquished collection in the 1980s). See image 1. Nearly all bail tops in our care require a levering tool to break the seal between glass and gasket (>90%), such as a stout short-bladed paint scraper. Using the tool safely takes knowhow and dexterity (brute force will work but with the attendant risk of impaling one's hand with the tool - and thus is strongly cautioned against). See image 2. Following jar opening, old gaskets on these old bail tops at UF are unredeemable (99% of the time). Exposed parts of the gasket are usually brittle and flake away, while the gasket that comprised the seal that lasted decades may be fully or partly molded to the jar - totally affixed. This latter circumstance renders the jar worthless, as no replacement gasket can be placed upon such an irregular surface. See images 3 and 4. For these reasons and others, whenever we work with bail top specimen lots, we replace the jars with screw top containers -- usually at a space savings (note Paul's comment about a limited offering of rather large sizes). If the above situation is only avoided with regular replacement of gaskets - that needs to be considered as ongoing maintenance costs associated with the use of this jar type. But perhaps local conditions have not always been ideal and thus the gaskets degraded more rapidly than they do under ideal conditions. If so, that also should be considered by those collections whose facilities can't always meet optimal conditions. It could also be our gaskets are of an inferior material, since improved upon or replaced by manufacturers of these containers systems. I am unclear on these points and look forward to learning more. Best wishes, Rob Robert H. Robins Collection Manager Division of Ichthyology [FLMNH Fishes logo email small] Florida Museum of Natural History 1659 Museum Rd. Gainesville, FL 32611-7800 Office: (352) 273-1957 rhrobins at flmnh.ufl.edu Search the Collection: http://specifyportal.flmnh.ufl.edu/fishes/ Search samples suitable for dna analysis: https://www.floridamuseum.ufl.edu/grr/holdings/ [cid:image003.jpg at 01D6BF26.88BCDEF0] [cid:image004.jpg at 01D6BF26.88BCDEF0] From: Nhcoll-l > On Behalf Of Callomon,Paul Sent: Friday, November 20, 2020 8:00 AM To: Neisskenwirth, Fabian >; 'neumann at snsb.de' >; nhcoll-l at mailman.yale.edu Subject: Re: [Nhcoll-l] Jar liners [External Email] We recently overhauled our 50,000-jar alcohol collection for the first time in 50 years. We found the following things for lids on screw-top jars: ? Steel lids are problematic. Ours were painted black on the outside and cadmium-plated inside with solid plastic seals. The seals had almost all held, but the lids themselves had pinpoint rusting from the inside due to condensation. If those pinpoints get through the metal, the lid is more likely to fail. We've replaced them all. ? PPE lids with either solid PPE disks or F217 liners are both fine. We started using them in the 1980s (PPE disks) and 1990s (F217) and both have lasted well, with a failure rate below 1% ? Phenolic lids with coneseal liners - very good. Bakelite and phenolic lids with food-grade-paper (coated or foil-laminated card) liners - high failure rate. We replaced them all. ? Note that there is a difference between pure phenolic resin and Bakelite. The latter has wood dust mixed with the resin, and always fails over time, often suddenly and completely. You can usually tell the difference by the gloss, color and size; Bakelite is not as black or as glossy as phenolic. If it's over 50 mm in diameter it's likely to be Bakelite. ? However, as Dirk points out, although phenolic resin is fine with ethanol it can be affected by formaldehyde. We have also found that phenolic will leach dark color into alcohol if it is immersed for more than a year, so it's clearly not entirely stable to ethanol either. Finally, though they are not available in small sizes the most stable and economical jars in our collection are bale jars with galvanized steel bale clips and either natural rubber, butyl or neoprene gaskets (e. g. "Ball"-brand jars). These effectively never fail. Paul Callomon MSc Collection Manager, Malacology and General Invertebrates ________________________________ Academy of Natural Sciences of Drexel University, Philadelphia 1900 Benjamin Franklin Parkway, Philadelphia PA 19103-1195, USA prc44 at drexel.edu Tel 215-405-5096 - Fax 215-299-1170 From: Nhcoll-l > On Behalf Of Neisskenwirth, Fabian Sent: Friday, November 20, 2020 4:09 AM To: 'neumann at snsb.de' >; nhcoll-l at mailman.yale.edu Subject: Re: [Nhcoll-l] Jar liners External. Hey there, I totally agree with Dirks statement. Glass lids are much more stable than any other kind of material used in fluid collections. I would like to share my experience with a sort of new jar type from Duran? (former Schott). They have a product line called "GLS 80" jars. It has a mouth opening of 80 mm, but the size varies from 500ml to 25000 ml. The mouth opening works very well for smaller specimens. The jars are made of borosilicate and sold at an affordable price, because they are made for the pharma industry. This is why they also have "filling marks", which esthetically speaking is not so nice, but it still fulfills the purpose of the jar. One of the sales agents of DWK (Duran Group), offered me that at a certain amount of jars, there could be a batch (around 1000 jars) made without "filling marks". There is a new type of lid for this jars too, made of Polysulfone (PSU) with a PTFE coated silicone liner. The Duran Group works worldwide, so if you have any questions regarding this contact Eric Lehnen (eric.lehnen at dwk.com). He knows about the use of the jars for collections purpose. This seems to be a very good improvement to move away from poor quality "sausage jars" with fast degrading lids. I have made a one year aging test with three jars with ethanol 70% mixed with a buffered formaldehyde solution 3,4% (9:1) and have seen no negative reactions on the lids. But this still should be tested more thoroughly. Hope this helps you out! -- Fabian Neisskenwirth Zoologischer Pr?parator MA Student Restaurierung und Konservierung von Kulturgut +49 (0) 201 24681 470 Stiftung Ruhr Museum Fritz-Schupp-Allee 15 45141 Essen www.ruhrmuseum.de Von: Nhcoll-l [mailto:nhcoll-l-bounces at mailman.yale.edu] Im Auftrag von Dirk Neumann Gesendet: Freitag, 20. November 2020 09:10 An: nhcoll-l at mailman.yale.edu Betreff: Re: [Nhcoll-l] Jar liners Hi Tonya & Lennart, I guess there are several layers to unfold here: Foamed liners - like the F217 liners you mention - consist of a foamed cell structure which - if the lid is screwed down tight - is compressed again the neck of the jar. This outs the cells under pressure and closed cells would withstand this tension better then open cell structures. It is hard to tell if the F217 liners you mention has open or closed cells, which gas is used for filling of the foam structure, etc. Even if the F217 liners would have the right composition, right thickness, closed cells - it still a is compressible gasket which has a limited life span. To produce a good closure, you would further need to consider the threads on the jar (continuous or not), the composition of the lid itself (the best liner does not help if the plastic used for the lid itself is of poor quality, etc. Most important seems to me that sizes of such lids are standardised (rather then customised for specific jars), so that they can easily be replaced if they fail. This is one of the huge problems many collections with Copehagen jars now face after plastic lids reached the end of their life span, sized where customised, company went out of production: it is virtually impossible to replace these lids - which causes huge problems in many collections. It seems that F217 and PTFE liners are often used as inlays for Phenolic caps (Bakelite) - which is a no-go in fluid collections because this sort of thermoset plastics is easily degraded by residual formaldehyde escaping from formaldehyde preserved specimens, even if they have been transferred in to alcohol. As said: the best liner is worthless if the plastic lid itself is unsuited. In general, plastic lids are not a good oxygen barrier - this is also worth remembering, especially if specimens inside such jars release a lot of fats or oils. Rather then concentrating on specific lids I would look into jars that are designed for the pharmaceutical sector. Here, both the jar (soda-lime glass) and the lid are expected (and usually tested) to withstand a wide range of chemicals AND to provide a good barrier against oxygen. There are different suppliers of such jars, the disadvantage of the wide mouth jars however is that the largest opening in these jars is 65 mm. So a good option for for 100 - 1000 ml jars, but not for larger jars. St?lzle (who also produce high quality borosilicate stoppered jars) is a possible source for such jars, but there are many others as well: https://pharma.stoelzle.com/en/product_category/weithalsglaser/ So as mostly no clear cut answer, but hopefully one that is useful. All the best Dirk Am 20.11.2020 um 00:29 schrieb Haff, Tonya (NCMI, Crace): Hi all, I know I've asked about this before, but may I please clarify again.... Does anyone have preference regarding PTFE (e.g. Teflon, I believe) lid liners vs F217 liners, which are layered polyethylene (as far as I understand). Can anyone give me advice as to what would be better as a lid liner for specimens kept in 70-90% EtOH? Advice very appreciated! Cheers, Tonya --------------------------------------------------------- Dr Tonya Haff Collections Manager Australian National Wildlife Collection National Research Collections Australia, CSIRO Canberra, Australia Phone: (+61) 02 6242 1566 (office) (+61) 0419 569 109 (mobile) _______________________________________________ Nhcoll-l mailing list Nhcoll-l at mailman.yale.edu https://mailman.yale.edu/mailman/listinfo/nhcoll-l _______________________________________________ NHCOLL-L is brought to you by the Society for the Preservation of Natural History Collections (SPNHC), an international society whose mission is to improve the preservation, conservation and management of natural history collections to ensure their continuing value to society. See http://www.spnhc.org for membership information. Advertising on NH-COLL-L is inappropriate. -- [cid:image005.png at 01D6BF26.88BCDEF0] Dirk Neumann Tel: 089 / 8107-111 Fax: 089 / 8107-300 neumann(a)snsb.de Postanschrift: Staatliche Naturwissenschaftliche Sammlungen Bayerns Zoologische Staatssammlung M?nchen Dirk Neumann, Sektion Ichthyologie / DNA-Storage M?nchhausenstr. 21 81247 M?nchen Besuchen Sie unsere Sammlung: http://www.zsm.mwn.de/sektion/ichthyologie-home/ --------- Dirk Neumann Tel: +49-89-8107-111 Fax: +49-89-8107-300 neumann(a)snsb.de postal address: Bavarian Natural History Collections The Bavarian State Collection of Zoology Dirk Neumann, Section Ichthyology / DNA-Storage Muenchhausenstr. 21 81247 Munich (Germany) Visit our section at: http://www.zsm.mwn.de/sektion/ichthyologie-home/ -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image002.jpg Type: image/jpeg Size: 4940 bytes Desc: image002.jpg URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image003.jpg Type: image/jpeg Size: 14842 bytes Desc: image003.jpg URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image004.jpg Type: image/jpeg Size: 4855 bytes Desc: image004.jpg URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image005.png Type: image/png Size: 8592 bytes Desc: image005.png URL: From eric.lazo-wasem at yale.edu Fri Nov 20 10:24:01 2020 From: eric.lazo-wasem at yale.edu (Lazo-Wasem, Eric) Date: Fri, 20 Nov 2020 15:24:01 +0000 Subject: [Nhcoll-l] Jar liners In-Reply-To: References: <3ecde4298f344f7db2e7ba29824da34b@SRVBK13DB02.stadt.essen.de> , Message-ID: I agree with the notion that bail lids are almost fool proof, although the shoulder design interferes somewhat if you are nesting vials inside. The standard "Ball" red gaskets will fail in contact with alcohol over time; we replaced ours with "Buna-N" gaskets (neoprene, so long ago I forget), a white gasket that does not compress as much and does not deteriorate. However, the red gaskets actually fuse to the glass with formaldehyde. We recently moved many thousands of plankton and sargassum samples stored in formaldehyde with Bail jars and the original red gaskets (>60 years) and they were so well sealed, we could wash the jars in a sink and not contaminate the internal contents with water. Over 15 years ago we replaced all our phenolic "Bakelite" lids (high failure rate) and bought new jars with PPE lids fit with a non-paper liner (maybe what Paul mentioned). If tightened correctly, they do not allow evaporation. Ours are very stable, when we see a problem, it can be correctly predicted that the lid was put on too loose; always traceable to someone going in to the jar and not replacing the lid tightly. Eric A. Lazo-Wasem, Senior Collections Manager Division of Invertebrate Zoology Peabody Museum of Natural History Yale University 170 Whitney Avenue New Haven, CT 06520 ________________________________ From: Nhcoll-l on behalf of Rob Robins Sent: Friday, November 20, 2020 9:54 AM To: Callomon,Paul ; Neisskenwirth, Fabian ; 'neumann at snsb.de' ; nhcoll-l at mailman.yale.edu Subject: Re: [Nhcoll-l] Jar liners Hi Folks, Would like to contribute an observation on the bail top jars ? I agree that the seals are excellent at resisting evaporation, with a major caveat: the gaskets deteriorate (at least gaskets of the type that came to us via a large relinquished collection in the 1980s). See image 1. Nearly all bail tops in our care require a levering tool to break the seal between glass and gasket (>90%), such as a stout short-bladed paint scraper. Using the tool safely takes knowhow and dexterity (brute force will work but with the attendant risk of impaling one?s hand with the tool ? and thus is strongly cautioned against). See image 2. Following jar opening, old gaskets on these old bail tops at UF are unredeemable (99% of the time). Exposed parts of the gasket are usually brittle and flake away, while the gasket that comprised the seal that lasted decades may be fully or partly molded to the jar ? totally affixed. This latter circumstance renders the jar worthless, as no replacement gasket can be placed upon such an irregular surface. See images 3 and 4. For these reasons and others, whenever we work with bail top specimen lots, we replace the jars with screw top containers -- usually at a space savings (note Paul?s comment about a limited offering of rather large sizes). If the above situation is only avoided with regular replacement of gaskets ? that needs to be considered as ongoing maintenance costs associated with the use of this jar type. But perhaps local conditions have not always been ideal and thus the gaskets degraded more rapidly than they do under ideal conditions. If so, that also should be considered by those collections whose facilities can?t always meet optimal conditions. It could also be our gaskets are of an inferior material, since improved upon or replaced by manufacturers of these containers systems. I am unclear on these points and look forward to learning more. Best wishes, Rob Robert H. Robins Collection Manager Division of Ichthyology [FLMNH Fishes logo email small] Florida Museum of Natural History 1659 Museum Rd. Gainesville, FL 32611-7800 Office: (352) 273-1957 rhrobins at flmnh.ufl.edu Search the Collection: http://specifyportal.flmnh.ufl.edu/fishes/ Search samples suitable for dna analysis: https://www.floridamuseum.ufl.edu/grr/holdings/ [cid:image001.jpg at 01D6BF23.2A907880] [cid:image008.jpg at 01D6BF23.2A907880] From: Nhcoll-l On Behalf Of Callomon,Paul Sent: Friday, November 20, 2020 8:00 AM To: Neisskenwirth, Fabian ; 'neumann at snsb.de' ; nhcoll-l at mailman.yale.edu Subject: Re: [Nhcoll-l] Jar liners [External Email] We recently overhauled our 50,000-jar alcohol collection for the first time in 50 years. We found the following things for lids on screw-top jars: * Steel lids are problematic. Ours were painted black on the outside and cadmium-plated inside with solid plastic seals. The seals had almost all held, but the lids themselves had pinpoint rusting from the inside due to condensation. If those pinpoints get through the metal, the lid is more likely to fail. We?ve replaced them all. * PPE lids with either solid PPE disks or F217 liners are both fine. We started using them in the 1980s (PPE disks) and 1990s (F217) and both have lasted well, with a failure rate below 1% * Phenolic lids with coneseal liners ? very good. Bakelite and phenolic lids with food-grade-paper (coated or foil-laminated card) liners ? high failure rate. We replaced them all. * Note that there is a difference between pure phenolic resin and Bakelite. The latter has wood dust mixed with the resin, and always fails over time, often suddenly and completely. You can usually tell the difference by the gloss, color and size; Bakelite is not as black or as glossy as phenolic. If it?s over 50 mm in diameter it?s likely to be Bakelite. * However, as Dirk points out, although phenolic resin is fine with ethanol it can be affected by formaldehyde. We have also found that phenolic will leach dark color into alcohol if it is immersed for more than a year, so it?s clearly not entirely stable to ethanol either. Finally, though they are not available in small sizes the most stable and economical jars in our collection are bale jars with galvanized steel bale clips and either natural rubber, butyl or neoprene gaskets (e. g. ?Ball?-brand jars). These effectively never fail. Paul Callomon MSc Collection Manager, Malacology and General Invertebrates ________________________________ Academy of Natural Sciences of Drexel University, Philadelphia 1900 Benjamin Franklin Parkway, Philadelphia PA 19103-1195, USA prc44 at drexel.edu Tel 215-405-5096 - Fax 215-299-1170 From: Nhcoll-l > On Behalf Of Neisskenwirth, Fabian Sent: Friday, November 20, 2020 4:09 AM To: 'neumann at snsb.de' >; nhcoll-l at mailman.yale.edu Subject: Re: [Nhcoll-l] Jar liners External. Hey there, I totally agree with Dirks statement. Glass lids are much more stable than any other kind of material used in fluid collections. I would like to share my experience with a sort of new jar type from Duran? (former Schott). They have a product line called ?GLS 80? jars. It has a mouth opening of 80 mm, but the size varies from 500ml to 25000 ml. The mouth opening works very well for smaller specimens. The jars are made of borosilicate and sold at an affordable price, because they are made for the pharma industry. This is why they also have ?filling marks?, which esthetically speaking is not so nice, but it still fulfills the purpose of the jar. One of the sales agents of DWK (Duran Group), offered me that at a certain amount of jars, there could be a batch (around 1000 jars) made without ?filling marks?. There is a new type of lid for this jars too, made of Polysulfone (PSU) with a PTFE coated silicone liner. The Duran Group works worldwide, so if you have any questions regarding this contact Eric Lehnen (eric.lehnen at dwk.com). He knows about the use of the jars for collections purpose. This seems to be a very good improvement to move away from poor quality ?sausage jars? with fast degrading lids. I have made a one year aging test with three jars with ethanol 70% mixed with a buffered formaldehyde solution 3,4% (9:1) and have seen no negative reactions on the lids. But this still should be tested more thoroughly. Hope this helps you out! -- Fabian Neisskenwirth Zoologischer Pr?parator MA Student Restaurierung und Konservierung von Kulturgut +49 (0) 201 24681 470 Stiftung Ruhr Museum Fritz-Schupp-Allee 15 45141 Essen www.ruhrmuseum.de Von: Nhcoll-l [mailto:nhcoll-l-bounces at mailman.yale.edu] Im Auftrag von Dirk Neumann Gesendet: Freitag, 20. November 2020 09:10 An: nhcoll-l at mailman.yale.edu Betreff: Re: [Nhcoll-l] Jar liners Hi Tonya & Lennart, I guess there are several layers to unfold here: Foamed liners - like the F217 liners you mention - consist of a foamed cell structure which - if the lid is screwed down tight - is compressed again the neck of the jar. This outs the cells under pressure and closed cells would withstand this tension better then open cell structures. It is hard to tell if the F217 liners you mention has open or closed cells, which gas is used for filling of the foam structure, etc. Even if the F217 liners would have the right composition, right thickness, closed cells - it still a is compressible gasket which has a limited life span. To produce a good closure, you would further need to consider the threads on the jar (continuous or not), the composition of the lid itself (the best liner does not help if the plastic used for the lid itself is of poor quality, etc. Most important seems to me that sizes of such lids are standardised (rather then customised for specific jars), so that they can easily be replaced if they fail. This is one of the huge problems many collections with Copehagen jars now face after plastic lids reached the end of their life span, sized where customised, company went out of production: it is virtually impossible to replace these lids - which causes huge problems in many collections. It seems that F217 and PTFE liners are often used as inlays for Phenolic caps (Bakelite) - which is a no-go in fluid collections because this sort of thermoset plastics is easily degraded by residual formaldehyde escaping from formaldehyde preserved specimens, even if they have been transferred in to alcohol. As said: the best liner is worthless if the plastic lid itself is unsuited. In general, plastic lids are not a good oxygen barrier - this is also worth remembering, especially if specimens inside such jars release a lot of fats or oils. Rather then concentrating on specific lids I would look into jars that are designed for the pharmaceutical sector. Here, both the jar (soda-lime glass) and the lid are expected (and usually tested) to withstand a wide range of chemicals AND to provide a good barrier against oxygen. There are different suppliers of such jars, the disadvantage of the wide mouth jars however is that the largest opening in these jars is 65 mm. So a good option for for 100 - 1000 ml jars, but not for larger jars. St?lzle (who also produce high quality borosilicate stoppered jars) is a possible source for such jars, but there are many others as well: https://pharma.stoelzle.com/en/product_category/weithalsglaser/ So as mostly no clear cut answer, but hopefully one that is useful. All the best Dirk Am 20.11.2020 um 00:29 schrieb Haff, Tonya (NCMI, Crace): Hi all, I know I?ve asked about this before, but may I please clarify again?. Does anyone have preference regarding PTFE (e.g. Teflon, I believe) lid liners vs F217 liners, which are layered polyethylene (as far as I understand). Can anyone give me advice as to what would be better as a lid liner for specimens kept in 70-90% EtOH? Advice very appreciated! Cheers, Tonya --------------------------------------------------------- Dr Tonya Haff Collections Manager Australian National Wildlife Collection National Research Collections Australia, CSIRO Canberra, Australia Phone: (+61) 02 6242 1566 (office) (+61) 0419 569 109 (mobile) _______________________________________________ Nhcoll-l mailing list Nhcoll-l at mailman.yale.edu https://mailman.yale.edu/mailman/listinfo/nhcoll-l _______________________________________________ NHCOLL-L is brought to you by the Society for the Preservation of Natural History Collections (SPNHC), an international society whose mission is to improve the preservation, conservation and management of natural history collections to ensure their continuing value to society. See http://www.spnhc.org for membership information. Advertising on NH-COLL-L is inappropriate. -- [cid:image007.png at 01D6BF20.E5D29450] Dirk Neumann Tel: 089 / 8107-111 Fax: 089 / 8107-300 neumann(a)snsb.de Postanschrift: Staatliche Naturwissenschaftliche Sammlungen Bayerns Zoologische Staatssammlung M?nchen Dirk Neumann, Sektion Ichthyologie / DNA-Storage M?nchhausenstr. 21 81247 M?nchen Besuchen Sie unsere Sammlung: http://www.zsm.mwn.de/sektion/ichthyologie-home/ --------- Dirk Neumann Tel: +49-89-8107-111 Fax: +49-89-8107-300 neumann(a)snsb.de postal address: Bavarian Natural History Collections The Bavarian State Collection of Zoology Dirk Neumann, Section Ichthyology / DNA-Storage Muenchhausenstr. 21 81247 Munich (Germany) Visit our section at: http://www.zsm.mwn.de/sektion/ichthyologie-home/ -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image002.jpg Type: image/jpeg Size: 4940 bytes Desc: image002.jpg URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image007.png Type: image/png Size: 8592 bytes Desc: image007.png URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image001.jpg Type: image/jpeg Size: 14842 bytes Desc: image001.jpg URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image008.jpg Type: image/jpeg Size: 4855 bytes Desc: image008.jpg URL: From neumann at snsb.de Fri Nov 20 10:49:18 2020 From: neumann at snsb.de (Dirk Neumann) Date: Fri, 20 Nov 2020 16:49:18 +0100 Subject: [Nhcoll-l] Jar liners In-Reply-To: References: <3ecde4298f344f7db2e7ba29824da34b@SRVBK13DB02.stadt.essen.de> Message-ID: <2690ebc5-1fd9-8edd-557c-748410aeb04a@snsb.de> Hi Rob & all, I know that many like bail top jars (or have limited alternatives). But I am not a fan either (for the same reasons Rob mentioned). Roughly around the time I started here in Munich back in 1999, I made a test with a failed bail top jar, tossed the gasket & clamp, and placed the glass lid with (at this time still) vaseline on top again. This worked remarkably well, zero evaporation loss until today, the grease was applied to the horizontal flange and vertical neck of the joint. An easy way to convert a bail top jar into a pure glass jar with flanged glass closure - maybe worth testing? Uneven glass surface & removal of sticky gaskets / silicone: a fine brass-brush attachment on a drilling machine with modest speed does an excellent job here. Some cleaning afterwards to remove golden brass glance (otherwise some green copper stains may appear in the long run). The brass is soft enough to not scratch the glass ... All the best Dirk Am 20.11.2020 um 15:54 schrieb Rob Robins: > > Hi Folks, > > Would like to contribute an observation on the bail top jars ? I agree > that the seals are excellent at resisting evaporation, with a major > caveat: the gaskets deteriorate (at least gaskets of the type that > came to us via a large relinquished collection in the 1980s). > > See image 1. > > Nearly all bail tops in our care require a levering tool to break the > seal between glass and gasket (>90%), such as a stout short-bladed > paint scraper. Using the tool safely takes knowhow and dexterity > (brute force will work but with the attendant risk of impaling one?s > hand with the tool ? and thus is strongly cautioned against). > > See image 2. > > Following jar opening, old gaskets on these old bail tops at UF are > unredeemable (99% of the time). Exposed parts of the gasket are > usually brittle and flake away, while the gasket that comprised the > seal that lasted decades may be fully or partly molded to the jar ? > totally affixed. This latter circumstance renders the jar worthless, > as no replacement gasket can be placed upon such an irregular surface. > > See images 3 and 4. > > For these reasons and others, whenever we work with bail top specimen > lots, we replace the jars with screw top containers -- usually at a > space savings (note Paul?s comment about a limited offering of rather > large sizes). > > If the above situation is only avoided with regular replacement of > gaskets ? that needs to be considered as ongoing maintenance costs > associated with the use of this jar type. > > But perhaps local conditions have not always been ideal and thus the > gaskets degraded more rapidly than they do under ideal conditions. If > so, that also should be considered by those collections whose > facilities can?t always meet optimal conditions. > > It could also be our gaskets are of an inferior material, since > improved upon or replaced by manufacturers of these containers systems. > > I am unclear on these points and look forward to learning more. > > Best wishes, > > > Rob > > Robert H. Robins > > Collection Manager > > Division of Ichthyology > > FLMNH Fishes logo email small > > Florida Museum of Natural History > > 1659 Museum Rd. > > Gainesville, FL 32611-7800 > > Office: (352) 273-1957 > > rhrobins at flmnh.ufl.edu > > Search the Collection: > > http://specifyportal.flmnh.ufl.edu/fishes/ > > > Search samples suitable for dna analysis: > > https://www.floridamuseum.ufl.edu/grr/holdings/ > > > *From:* Nhcoll-l *On Behalf Of > *Callomon,Paul > *Sent:* Friday, November 20, 2020 8:00 AM > *To:* Neisskenwirth, Fabian ; > 'neumann at snsb.de' ; nhcoll-l at mailman.yale.edu > *Subject:* Re: [Nhcoll-l] Jar liners > > *[External Email]* > > We recently overhauled our 50,000-jar alcohol collection for the first > time in 50 years. We found the following things for lids on screw-top > jars: > > * Steel lids are problematic. Ours were painted black on the outside > and cadmium-plated inside with solid plastic seals. The seals had > almost all held, but the lids themselves had pinpoint rusting from > the inside due to condensation. If those pinpoints get through the > metal, the lid is more likely to fail. We?ve replaced them all. > * PPE lids with either solid PPE disks or F217 liners are both fine. > We started using them in the 1980s (PPE disks) and 1990s (F217) > and both have lasted well, with a failure rate below 1% > * Phenolic lids with coneseal liners ? very good. Bakelite and > phenolic lids with food-grade-paper (coated or foil-laminated > card) liners ? high failure rate. We replaced them all. > * Note that there is a difference between pure phenolic resin and > Bakelite. The latter has wood dust mixed with the resin, and > always fails over time, often suddenly and completely. You can > usually tell the difference by the gloss, color and size; Bakelite > is not as black or as glossy as phenolic. If it?s over 50 mm in > diameter it?s likely to be Bakelite. > * However, as Dirk points out, although phenolic resin is fine with > ethanol it can be affected by formaldehyde. We have also found > that phenolic will leach dark color into alcohol if it is immersed > for more than a year, so it?s clearly not entirely stable to > ethanol either. > > Finally, though they are not available in small sizes the most stable > and economical jars in our collection are bale jars with galvanized > steel bale clips and either natural rubber, butyl or neoprene gaskets > (e. g. ?Ball?-brand jars). These effectively never fail. > > *Paul Callomon MSc* > /Collection Manager, Malacology and General Invertebrates/ > > ------------------------------------------------------------------------ > > *Academy of Natural Sciences of Drexel University, Philadelphia* > > 1900 Benjamin Franklin Parkway, Philadelphia PA 19103-1195, USA > /prc44 at drexel.edu Tel 215-405-5096 - Fax > 215-299-1170/ > > *From:*Nhcoll-l > *On Behalf Of > *Neisskenwirth, Fabian > *Sent:* Friday, November 20, 2020 4:09 AM > *To:* 'neumann at snsb.de' >; > nhcoll-l at mailman.yale.edu > *Subject:* Re: [Nhcoll-l] Jar liners > > *External.* > > Hey there, > > I totally agree with Dirks statement. Glass lids are much more stable > than any other kind of material used in fluid collections. > > I would like to share my experience with a sort of new jar type from > Duran? (former Schott). They have a product line called ?GLS 80? jars. > It has a mouth opening of 80 mm, but the size varies from 500ml to > 25000 ml. The mouth opening works very well for smaller specimens. > > The jars are made of borosilicate and sold at an affordable price, > because they are made for the pharma industry. This is why they also > have ?filling marks?, which esthetically speaking is not so nice, but > it still fulfills the purpose of the jar. One of the sales agents of > DWK (Duran Group), offered me that at a certain amount of jars, there > could be a batch (around 1000 jars) made without ?filling marks?. > > There is a new type of lid for this jars too, made of Polysulfone > (PSU) with a PTFE coated silicone liner. > > The Duran Group works worldwide, so if you have any questions > regarding this contact Eric Lehnen (eric.lehnen at dwk.com > ). He knows about the use of the jars for > collections purpose. > > This seems to be a very good improvement to move away from poor > quality ?sausage jars? with fast degrading lids. > > I have made a one year aging test with three jars with ethanol 70% > mixed with a buffered formaldehyde solution 3,4% (9:1) and have seen > no negative reactions on the lids. But this still should be tested > more thoroughly. > > Hope this helps you out! > > -- > > *Fabian Neisskenwirth* > > Zoologischer Pr?parator > > MA Student Restaurierung und Konservierung von Kulturgut > > +49 (0) 201 24681 470 > > *Stiftung Ruhr Museum* > > Fritz-Schupp-Allee 15 > > 45141 Essen > > www.ruhrmuseum.de > > > *Von:*Nhcoll-l [mailto:nhcoll-l-bounces at mailman.yale.edu > ] *Im Auftrag von *Dirk Neumann > *Gesendet:* Freitag, 20. November 2020 09:10 > *An:* nhcoll-l at mailman.yale.edu > *Betreff:* Re: [Nhcoll-l] Jar liners > > Hi Tonya & Lennart, > > I guess there are several layers to unfold here: > > Foamed liners - like the F217 liners you mention - consist of a foamed > cell structure which - if the lid is screwed down tight - is > compressed again the neck of the jar. This outs the cells under > pressure and closed cells would withstand this tension better then > open cell structures. It is hard to tell if the F217 liners you > mention has open or closed cells, which gas is used for filling of the > foam structure, etc. Even if the F217 liners would have the right > composition, right thickness, closed cells - it still a is > compressible gasket which has a limited life span. > > To produce a good closure, you would further need to consider the > threads on the jar (continuous or not), the composition of the lid > itself (the best liner does not help if the plastic used for the lid > itself is of poor quality, etc. Most important seems to me that sizes > of such lids are standardised (rather then customised for specific > jars), so that they can easily be replaced if they fail. This is one > of the huge problems many collections with Copehagen jars now face > after plastic lids reached the end of their life span, sized where > customised, company went out of production: it is virtually impossible > to replace these lids - which causes huge problems in many collections. > > It seems that F217 and PTFE liners are often used as inlays for > Phenolic caps (Bakelite) - which is a no-go in fluid collections > because this sort of thermoset plastics is easily degraded by residual > formaldehyde escaping from formaldehyde preserved specimens, even if > they have been transferred in to alcohol. As said: the best liner is > worthless if the plastic lid itself is unsuited. > > In general, plastic lids are not a good oxygen barrier - this is also > worth remembering, especially if specimens inside such jars release a > lot of fats or oils. > > Rather then concentrating on specific lids I would look into jars that > are designed for the pharmaceutical sector. Here, both the jar > (soda-lime glass) and the lid are expected (and usually tested) to > withstand a wide range of chemicals AND to provide a good barrier > against oxygen. > > There are different suppliers of such jars, the disadvantage of the > wide mouth jars however is that the largest opening in these jars is > 65 mm. So a good option for for 100 - 1000 ml jars, but not for larger > jars.? St?lzle (who also produce high quality borosilicate stoppered > jars) is a possible source for such jars, but there are many others as > well: https://pharma.stoelzle.com/en/product_category/weithalsglaser/ > > > > So as mostly no clear cut answer, but hopefully one that is useful. > > All the best > > Dirk > > Am 20.11.2020 um 00:29 schrieb Haff, Tonya (NCMI, Crace): > > Hi all, > > I know I?ve asked about this before, but may I please clarify > again?. Does anyone have preference regarding PTFE (e.g. Teflon, I > believe) lid liners vs F217 liners, which are layered polyethylene > (as far as I understand). Can anyone give me advice as to what > would be better as a lid liner for specimens kept in 70-90% EtOH? > Advice very appreciated! > > Cheers, > > Tonya > > --------------------------------------------------------- > > Dr Tonya Haff > > Collections Manager > > Australian National Wildlife Collection > > National Research Collections Australia, CSIRO > > Canberra, Australia > > Phone: (+61) 02 6242 1566 (office) > > (+61) 0419 569 109 (mobile) > > _______________________________________________ > > Nhcoll-l mailing list > > Nhcoll-l at mailman.yale.edu > > https://mailman.yale.edu/mailman/listinfo/nhcoll-l > > > _______________________________________________ > > NHCOLL-L is brought to you by the Society for the Preservation of > > Natural History Collections (SPNHC), an international society whose > > mission is to improve the preservation, conservation and management of > > natural history collections to ensure their continuing value to > > society. See http://www.spnhc.org > > for membership information. > > Advertising on NH-COLL-L is inappropriate. > > -- > > > Dirk Neumann > > Tel: 089 / 8107-111 > Fax: 089 / 8107-300 > neumann(a)snsb.de > > Postanschrift: > > Staatliche Naturwissenschaftliche Sammlungen Bayerns > Zoologische Staatssammlung M?nchen > Dirk Neumann, Sektion Ichthyologie / DNA-Storage > M?nchhausenstr. 21 > 81247 M?nchen > > Besuchen Sie unsere Sammlung: > http://www.zsm.mwn.de/sektion/ichthyologie-home/ > > > --------- > > Dirk Neumann > > Tel: +49-89-8107-111 > Fax: +49-89-8107-300 > neumann(a)snsb.de > > postal address: > > Bavarian Natural History Collections > The Bavarian State Collection of Zoology > Dirk Neumann, Section Ichthyology / DNA-Storage > Muenchhausenstr. 21 > 81247 Munich (Germany) > > Visit our section at: > http://www.zsm.mwn.de/sektion/ichthyologie-home/ > > -- Dirk Neumann Tel: 089 / 8107-111 Fax: 089 / 8107-300 neumann(a)snsb.de Postanschrift: Staatliche Naturwissenschaftliche Sammlungen Bayerns Zoologische Staatssammlung M?nchen Dirk Neumann, Sektion Ichthyologie / DNA-Storage M?nchhausenstr. 21 81247 M?nchen Besuchen Sie unsere Sammlung: http://www.zsm.mwn.de/sektion/ichthyologie-home/ --------- Dirk Neumann Tel: +49-89-8107-111 Fax: +49-89-8107-300 neumann(a)snsb.de postal address: Bavarian Natural History Collections The Bavarian State Collection of Zoology Dirk Neumann, Section Ichthyology / DNA-Storage Muenchhausenstr. 21 81247 Munich (Germany) Visit our section at: http://www.zsm.mwn.de/sektion/ichthyologie-home/ -------------- next part -------------- An HTML attachment was scrubbed... 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Name: hjjdljihjbaldabn.png Type: image/png Size: 23308 bytes Desc: not available URL: From prc44 at drexel.edu Fri Nov 20 10:56:54 2020 From: prc44 at drexel.edu (Callomon,Paul) Date: Fri, 20 Nov 2020 15:56:54 +0000 Subject: [Nhcoll-l] Jar liners In-Reply-To: References: <3ecde4298f344f7db2e7ba29824da34b@SRVBK13DB02.stadt.essen.de> , Message-ID: How much to tighten PPE lids is an issue. Most of us old-timers do it by feel, but the fact is you can over-tighten them. If that happens, the skirt of the lid will splay at the point where its internal spiral thread is making tightest contact with the external spiral thread on the glass. PPE won't split, but the pressure loading across the sealing face will be uneven. To get consistent tightening you could use a torque wrench with adaptors for different lid diameters. Rather than a big ?" drive one, try to find a smaller one with a 3/8" or ?" drive and preferably electronic rather than the cheaper "beam-deflection" type. The adaptors could just be regular cap-type oil-filter extractors, or a one-size-fits-all strap wrench that has a square hole for the torque wrench. Paul Callomon MSc Collection Manager, Malacology and General Invertebrates ________________________________ Academy of Natural Sciences of Drexel University, Philadelphia 1900 Benjamin Franklin Parkway, Philadelphia PA 19103-1195, USA prc44 at drexel.edu Tel 215-405-5096 - Fax 215-299-1170 From: Lazo-Wasem, Eric Sent: Friday, November 20, 2020 10:24 AM To: Rob Robins ; Callomon,Paul ; Neisskenwirth, Fabian ; 'neumann at snsb.de' ; nhcoll-l at mailman.yale.edu Subject: Re: [Nhcoll-l] Jar liners External. I agree with the notion that bail lids are almost fool proof, although the shoulder design interferes somewhat if you are nesting vials inside. The standard "Ball" red gaskets will fail in contact with alcohol over time; we replaced ours with "Buna-N" gaskets (neoprene, so long ago I forget), a white gasket that does not compress as much and does not deteriorate. However, the red gaskets actually fuse to the glass with formaldehyde. We recently moved many thousands of plankton and sargassum samples stored in formaldehyde with Bail jars and the original red gaskets (>60 years) and they were so well sealed, we could wash the jars in a sink and not contaminate the internal contents with water. Over 15 years ago we replaced all our phenolic "Bakelite" lids (high failure rate) and bought new jars with PPE lids fit with a non-paper liner (maybe what Paul mentioned). If tightened correctly, they do not allow evaporation. Ours are very stable, when we see a problem, it can be correctly predicted that the lid was put on too loose; always traceable to someone going in to the jar and not replacing the lid tightly. Eric A. Lazo-Wasem, Senior Collections Manager Division of Invertebrate Zoology Peabody Museum of Natural History Yale University 170 Whitney Avenue New Haven, CT 06520 ________________________________ From: Nhcoll-l > on behalf of Rob Robins > Sent: Friday, November 20, 2020 9:54 AM To: Callomon,Paul >; Neisskenwirth, Fabian >; 'neumann at snsb.de' >; nhcoll-l at mailman.yale.edu > Subject: Re: [Nhcoll-l] Jar liners Hi Folks, Would like to contribute an observation on the bail top jars - I agree that the seals are excellent at resisting evaporation, with a major caveat: the gaskets deteriorate (at least gaskets of the type that came to us via a large relinquished collection in the 1980s). See image 1. Nearly all bail tops in our care require a levering tool to break the seal between glass and gasket (>90%), such as a stout short-bladed paint scraper. Using the tool safely takes knowhow and dexterity (brute force will work but with the attendant risk of impaling one's hand with the tool - and thus is strongly cautioned against). See image 2. Following jar opening, old gaskets on these old bail tops at UF are unredeemable (99% of the time). Exposed parts of the gasket are usually brittle and flake away, while the gasket that comprised the seal that lasted decades may be fully or partly molded to the jar - totally affixed. This latter circumstance renders the jar worthless, as no replacement gasket can be placed upon such an irregular surface. See images 3 and 4. For these reasons and others, whenever we work with bail top specimen lots, we replace the jars with screw top containers -- usually at a space savings (note Paul's comment about a limited offering of rather large sizes). If the above situation is only avoided with regular replacement of gaskets - that needs to be considered as ongoing maintenance costs associated with the use of this jar type. But perhaps local conditions have not always been ideal and thus the gaskets degraded more rapidly than they do under ideal conditions. If so, that also should be considered by those collections whose facilities can't always meet optimal conditions. It could also be our gaskets are of an inferior material, since improved upon or replaced by manufacturers of these containers systems. I am unclear on these points and look forward to learning more. Best wishes, Rob Robert H. Robins Collection Manager Division of Ichthyology [FLMNH Fishes logo email small] Florida Museum of Natural History 1659 Museum Rd. Gainesville, FL 32611-7800 Office: (352) 273-1957 rhrobins at flmnh.ufl.edu Search the Collection: http://specifyportal.flmnh.ufl.edu/fishes/ Search samples suitable for dna analysis: https://www.floridamuseum.ufl.edu/grr/holdings/ [cid:image003.jpg at 01D6BF2B.DAF952C0] [cid:image004.jpg at 01D6BF2B.DAF952C0] From: Nhcoll-l > On Behalf Of Callomon,Paul Sent: Friday, November 20, 2020 8:00 AM To: Neisskenwirth, Fabian >; 'neumann at snsb.de' >; nhcoll-l at mailman.yale.edu Subject: Re: [Nhcoll-l] Jar liners [External Email] We recently overhauled our 50,000-jar alcohol collection for the first time in 50 years. We found the following things for lids on screw-top jars: ? Steel lids are problematic. Ours were painted black on the outside and cadmium-plated inside with solid plastic seals. The seals had almost all held, but the lids themselves had pinpoint rusting from the inside due to condensation. If those pinpoints get through the metal, the lid is more likely to fail. We've replaced them all. ? PPE lids with either solid PPE disks or F217 liners are both fine. We started using them in the 1980s (PPE disks) and 1990s (F217) and both have lasted well, with a failure rate below 1% ? Phenolic lids with coneseal liners - very good. Bakelite and phenolic lids with food-grade-paper (coated or foil-laminated card) liners - high failure rate. We replaced them all. ? Note that there is a difference between pure phenolic resin and Bakelite. The latter has wood dust mixed with the resin, and always fails over time, often suddenly and completely. You can usually tell the difference by the gloss, color and size; Bakelite is not as black or as glossy as phenolic. If it's over 50 mm in diameter it's likely to be Bakelite. ? However, as Dirk points out, although phenolic resin is fine with ethanol it can be affected by formaldehyde. We have also found that phenolic will leach dark color into alcohol if it is immersed for more than a year, so it's clearly not entirely stable to ethanol either. Finally, though they are not available in small sizes the most stable and economical jars in our collection are bale jars with galvanized steel bale clips and either natural rubber, butyl or neoprene gaskets (e. g. "Ball"-brand jars). These effectively never fail. Paul Callomon MSc Collection Manager, Malacology and General Invertebrates ________________________________ Academy of Natural Sciences of Drexel University, Philadelphia 1900 Benjamin Franklin Parkway, Philadelphia PA 19103-1195, USA prc44 at drexel.edu Tel 215-405-5096 - Fax 215-299-1170 From: Nhcoll-l > On Behalf Of Neisskenwirth, Fabian Sent: Friday, November 20, 2020 4:09 AM To: 'neumann at snsb.de' >; nhcoll-l at mailman.yale.edu Subject: Re: [Nhcoll-l] Jar liners External. Hey there, I totally agree with Dirks statement. Glass lids are much more stable than any other kind of material used in fluid collections. I would like to share my experience with a sort of new jar type from Duran? (former Schott). They have a product line called "GLS 80" jars. It has a mouth opening of 80 mm, but the size varies from 500ml to 25000 ml. The mouth opening works very well for smaller specimens. The jars are made of borosilicate and sold at an affordable price, because they are made for the pharma industry. This is why they also have "filling marks", which esthetically speaking is not so nice, but it still fulfills the purpose of the jar. One of the sales agents of DWK (Duran Group), offered me that at a certain amount of jars, there could be a batch (around 1000 jars) made without "filling marks". There is a new type of lid for this jars too, made of Polysulfone (PSU) with a PTFE coated silicone liner. The Duran Group works worldwide, so if you have any questions regarding this contact Eric Lehnen (eric.lehnen at dwk.com). He knows about the use of the jars for collections purpose. This seems to be a very good improvement to move away from poor quality "sausage jars" with fast degrading lids. I have made a one year aging test with three jars with ethanol 70% mixed with a buffered formaldehyde solution 3,4% (9:1) and have seen no negative reactions on the lids. But this still should be tested more thoroughly. Hope this helps you out! -- Fabian Neisskenwirth Zoologischer Pr?parator MA Student Restaurierung und Konservierung von Kulturgut +49 (0) 201 24681 470 Stiftung Ruhr Museum Fritz-Schupp-Allee 15 45141 Essen www.ruhrmuseum.de Von: Nhcoll-l [mailto:nhcoll-l-bounces at mailman.yale.edu] Im Auftrag von Dirk Neumann Gesendet: Freitag, 20. November 2020 09:10 An: nhcoll-l at mailman.yale.edu Betreff: Re: [Nhcoll-l] Jar liners Hi Tonya & Lennart, I guess there are several layers to unfold here: Foamed liners - like the F217 liners you mention - consist of a foamed cell structure which - if the lid is screwed down tight - is compressed again the neck of the jar. This outs the cells under pressure and closed cells would withstand this tension better then open cell structures. It is hard to tell if the F217 liners you mention has open or closed cells, which gas is used for filling of the foam structure, etc. Even if the F217 liners would have the right composition, right thickness, closed cells - it still a is compressible gasket which has a limited life span. To produce a good closure, you would further need to consider the threads on the jar (continuous or not), the composition of the lid itself (the best liner does not help if the plastic used for the lid itself is of poor quality, etc. Most important seems to me that sizes of such lids are standardised (rather then customised for specific jars), so that they can easily be replaced if they fail. This is one of the huge problems many collections with Copehagen jars now face after plastic lids reached the end of their life span, sized where customised, company went out of production: it is virtually impossible to replace these lids - which causes huge problems in many collections. It seems that F217 and PTFE liners are often used as inlays for Phenolic caps (Bakelite) - which is a no-go in fluid collections because this sort of thermoset plastics is easily degraded by residual formaldehyde escaping from formaldehyde preserved specimens, even if they have been transferred in to alcohol. As said: the best liner is worthless if the plastic lid itself is unsuited. In general, plastic lids are not a good oxygen barrier - this is also worth remembering, especially if specimens inside such jars release a lot of fats or oils. Rather then concentrating on specific lids I would look into jars that are designed for the pharmaceutical sector. Here, both the jar (soda-lime glass) and the lid are expected (and usually tested) to withstand a wide range of chemicals AND to provide a good barrier against oxygen. There are different suppliers of such jars, the disadvantage of the wide mouth jars however is that the largest opening in these jars is 65 mm. So a good option for for 100 - 1000 ml jars, but not for larger jars. St?lzle (who also produce high quality borosilicate stoppered jars) is a possible source for such jars, but there are many others as well: https://pharma.stoelzle.com/en/product_category/weithalsglaser/ So as mostly no clear cut answer, but hopefully one that is useful. All the best Dirk Am 20.11.2020 um 00:29 schrieb Haff, Tonya (NCMI, Crace): Hi all, I know I've asked about this before, but may I please clarify again.... Does anyone have preference regarding PTFE (e.g. Teflon, I believe) lid liners vs F217 liners, which are layered polyethylene (as far as I understand). Can anyone give me advice as to what would be better as a lid liner for specimens kept in 70-90% EtOH? Advice very appreciated! Cheers, Tonya --------------------------------------------------------- Dr Tonya Haff Collections Manager Australian National Wildlife Collection National Research Collections Australia, CSIRO Canberra, Australia Phone: (+61) 02 6242 1566 (office) (+61) 0419 569 109 (mobile) _______________________________________________ Nhcoll-l mailing list Nhcoll-l at mailman.yale.edu https://mailman.yale.edu/mailman/listinfo/nhcoll-l _______________________________________________ NHCOLL-L is brought to you by the Society for the Preservation of Natural History Collections (SPNHC), an international society whose mission is to improve the preservation, conservation and management of natural history collections to ensure their continuing value to society. See http://www.spnhc.org for membership information. Advertising on NH-COLL-L is inappropriate. -- [cid:image005.png at 01D6BF2B.DAF952C0] Dirk Neumann Tel: 089 / 8107-111 Fax: 089 / 8107-300 neumann(a)snsb.de Postanschrift: Staatliche Naturwissenschaftliche Sammlungen Bayerns Zoologische Staatssammlung M?nchen Dirk Neumann, Sektion Ichthyologie / DNA-Storage M?nchhausenstr. 21 81247 M?nchen Besuchen Sie unsere Sammlung: http://www.zsm.mwn.de/sektion/ichthyologie-home/ --------- Dirk Neumann Tel: +49-89-8107-111 Fax: +49-89-8107-300 neumann(a)snsb.de postal address: Bavarian Natural History Collections The Bavarian State Collection of Zoology Dirk Neumann, Section Ichthyology / DNA-Storage Muenchhausenstr. 21 81247 Munich (Germany) Visit our section at: http://www.zsm.mwn.de/sektion/ichthyologie-home/ -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image002.jpg Type: image/jpeg Size: 4940 bytes Desc: image002.jpg URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image003.jpg Type: image/jpeg Size: 14842 bytes Desc: image003.jpg URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image004.jpg Type: image/jpeg Size: 4855 bytes Desc: image004.jpg URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image005.png Type: image/png Size: 8592 bytes Desc: image005.png URL: From abentley at ku.edu Fri Nov 20 11:22:02 2020 From: abentley at ku.edu (Bentley, Andrew Charles) Date: Fri, 20 Nov 2020 16:22:02 +0000 Subject: [Nhcoll-l] Jar liners In-Reply-To: References: <3ecde4298f344f7db2e7ba29824da34b@SRVBK13DB02.stadt.essen.de> Message-ID: We too have been replacing old orange gaskets with the new buna-n gaskets over time and these have proved to be far superior. We do also have a policy of changing all old bail-top jars to screw tops from O?Berk whenever a jar needs attention. We do not have the funds to wholesale replace all of them but hopefully over time will do so. We have seen very few problems with the jars and lids from O?Berk besides a couple of bad batches of lids that have failed more often than others and the over or under tightening problems mentioned already. These jars are cost effective and curation friendly and come in a wide variety of sizes, shapes and mouth opening sizes. Andy A : A : A : }<(((_?>.,.,.,.}<(((_?>.,.,.,.}<)))_?> V V V Andy Bentley Ichthyology Collection Manager University of Kansas Biodiversity Institute Dyche Hall 1345 Jayhawk Boulevard Lawrence, KS, 66045-7561 USA Tel: (785) 864-3863 Fax: (785) 864-5335 Email: abentley at ku.edu http://ichthyology.biodiversity.ku.edu A : A : A : }<(((_?>.,.,.,.}<(((_?>.,.,.,.}<)))_?> V V V From: Nhcoll-l on behalf of Rob Robins Date: Friday, November 20, 2020 at 8:55 AM To: "Callomon,Paul" , "Neisskenwirth, Fabian" , "'neumann at snsb.de'" , "nhcoll-l at mailman.yale.edu" Subject: Re: [Nhcoll-l] Jar liners Hi Folks, Would like to contribute an observation on the bail top jars ? I agree that the seals are excellent at resisting evaporation, with a major caveat: the gaskets deteriorate (at least gaskets of the type that came to us via a large relinquished collection in the 1980s). See image 1. Nearly all bail tops in our care require a levering tool to break the seal between glass and gasket (>90%), such as a stout short-bladed paint scraper. Using the tool safely takes knowhow and dexterity (brute force will work but with the attendant risk of impaling one?s hand with the tool ? and thus is strongly cautioned against). See image 2. Following jar opening, old gaskets on these old bail tops at UF are unredeemable (99% of the time). Exposed parts of the gasket are usually brittle and flake away, while the gasket that comprised the seal that lasted decades may be fully or partly molded to the jar ? totally affixed. This latter circumstance renders the jar worthless, as no replacement gasket can be placed upon such an irregular surface. See images 3 and 4. For these reasons and others, whenever we work with bail top specimen lots, we replace the jars with screw top containers -- usually at a space savings (note Paul?s comment about a limited offering of rather large sizes). If the above situation is only avoided with regular replacement of gaskets ? that needs to be considered as ongoing maintenance costs associated with the use of this jar type. But perhaps local conditions have not always been ideal and thus the gaskets degraded more rapidly than they do under ideal conditions. If so, that also should be considered by those collections whose facilities can?t always meet optimal conditions. It could also be our gaskets are of an inferior material, since improved upon or replaced by manufacturers of these containers systems. I am unclear on these points and look forward to learning more. Best wishes, Rob Robert H. Robins Collection Manager Division of Ichthyology [FLMNH Fishes logo email small] Florida Museum of Natural History 1659 Museum Rd. Gainesville, FL 32611-7800 Office: (352) 273-1957 rhrobins at flmnh.ufl.edu Search the Collection: http://specifyportal.flmnh.ufl.edu/fishes/ Search samples suitable for dna analysis: https://www.floridamuseum.ufl.edu/grr/holdings/ [cid:image002.jpg at 01D6BF26.FC2D2D90] [cid:image003.jpg at 01D6BF26.FC2D2D90] From: Nhcoll-l On Behalf Of Callomon,Paul Sent: Friday, November 20, 2020 8:00 AM To: Neisskenwirth, Fabian ; 'neumann at snsb.de' ; nhcoll-l at mailman.yale.edu Subject: Re: [Nhcoll-l] Jar liners [External Email] We recently overhauled our 50,000-jar alcohol collection for the first time in 50 years. We found the following things for lids on screw-top jars: * Steel lids are problematic. Ours were painted black on the outside and cadmium-plated inside with solid plastic seals. The seals had almost all held, but the lids themselves had pinpoint rusting from the inside due to condensation. If those pinpoints get through the metal, the lid is more likely to fail. We?ve replaced them all. * PPE lids with either solid PPE disks or F217 liners are both fine. We started using them in the 1980s (PPE disks) and 1990s (F217) and both have lasted well, with a failure rate below 1% * Phenolic lids with coneseal liners ? very good. Bakelite and phenolic lids with food-grade-paper (coated or foil-laminated card) liners ? high failure rate. We replaced them all. * Note that there is a difference between pure phenolic resin and Bakelite. The latter has wood dust mixed with the resin, and always fails over time, often suddenly and completely. You can usually tell the difference by the gloss, color and size; Bakelite is not as black or as glossy as phenolic. If it?s over 50 mm in diameter it?s likely to be Bakelite. * However, as Dirk points out, although phenolic resin is fine with ethanol it can be affected by formaldehyde. We have also found that phenolic will leach dark color into alcohol if it is immersed for more than a year, so it?s clearly not entirely stable to ethanol either. Finally, though they are not available in small sizes the most stable and economical jars in our collection are bale jars with galvanized steel bale clips and either natural rubber, butyl or neoprene gaskets (e. g. ?Ball?-brand jars). These effectively never fail. Paul Callomon MSc Collection Manager, Malacology and General Invertebrates ________________________________ Academy of Natural Sciences of Drexel University, Philadelphia 1900 Benjamin Franklin Parkway, Philadelphia PA 19103-1195, USA prc44 at drexel.edu Tel 215-405-5096 - Fax 215-299-1170 From: Nhcoll-l > On Behalf Of Neisskenwirth, Fabian Sent: Friday, November 20, 2020 4:09 AM To: 'neumann at snsb.de' >; nhcoll-l at mailman.yale.edu Subject: Re: [Nhcoll-l] Jar liners External. Hey there, I totally agree with Dirks statement. Glass lids are much more stable than any other kind of material used in fluid collections. I would like to share my experience with a sort of new jar type from Duran? (former Schott). They have a product line called ?GLS 80? jars. It has a mouth opening of 80 mm, but the size varies from 500ml to 25000 ml. The mouth opening works very well for smaller specimens. The jars are made of borosilicate and sold at an affordable price, because they are made for the pharma industry. This is why they also have ?filling marks?, which esthetically speaking is not so nice, but it still fulfills the purpose of the jar. One of the sales agents of DWK (Duran Group), offered me that at a certain amount of jars, there could be a batch (around 1000 jars) made without ?filling marks?. There is a new type of lid for this jars too, made of Polysulfone (PSU) with a PTFE coated silicone liner. The Duran Group works worldwide, so if you have any questions regarding this contact Eric Lehnen (eric.lehnen at dwk.com). He knows about the use of the jars for collections purpose. This seems to be a very good improvement to move away from poor quality ?sausage jars? with fast degrading lids. I have made a one year aging test with three jars with ethanol 70% mixed with a buffered formaldehyde solution 3,4% (9:1) and have seen no negative reactions on the lids. But this still should be tested more thoroughly. Hope this helps you out! -- Fabian Neisskenwirth Zoologischer Pr?parator MA Student Restaurierung und Konservierung von Kulturgut +49 (0) 201 24681 470 Stiftung Ruhr Museum Fritz-Schupp-Allee 15 45141 Essen www.ruhrmuseum.de Von: Nhcoll-l [mailto:nhcoll-l-bounces at mailman.yale.edu] Im Auftrag von Dirk Neumann Gesendet: Freitag, 20. November 2020 09:10 An: nhcoll-l at mailman.yale.edu Betreff: Re: [Nhcoll-l] Jar liners Hi Tonya & Lennart, I guess there are several layers to unfold here: Foamed liners - like the F217 liners you mention - consist of a foamed cell structure which - if the lid is screwed down tight - is compressed again the neck of the jar. This outs the cells under pressure and closed cells would withstand this tension better then open cell structures. It is hard to tell if the F217 liners you mention has open or closed cells, which gas is used for filling of the foam structure, etc. Even if the F217 liners would have the right composition, right thickness, closed cells - it still a is compressible gasket which has a limited life span. To produce a good closure, you would further need to consider the threads on the jar (continuous or not), the composition of the lid itself (the best liner does not help if the plastic used for the lid itself is of poor quality, etc. Most important seems to me that sizes of such lids are standardised (rather then customised for specific jars), so that they can easily be replaced if they fail. This is one of the huge problems many collections with Copehagen jars now face after plastic lids reached the end of their life span, sized where customised, company went out of production: it is virtually impossible to replace these lids - which causes huge problems in many collections. It seems that F217 and PTFE liners are often used as inlays for Phenolic caps (Bakelite) - which is a no-go in fluid collections because this sort of thermoset plastics is easily degraded by residual formaldehyde escaping from formaldehyde preserved specimens, even if they have been transferred in to alcohol. As said: the best liner is worthless if the plastic lid itself is unsuited. In general, plastic lids are not a good oxygen barrier - this is also worth remembering, especially if specimens inside such jars release a lot of fats or oils. Rather then concentrating on specific lids I would look into jars that are designed for the pharmaceutical sector. Here, both the jar (soda-lime glass) and the lid are expected (and usually tested) to withstand a wide range of chemicals AND to provide a good barrier against oxygen. There are different suppliers of such jars, the disadvantage of the wide mouth jars however is that the largest opening in these jars is 65 mm. So a good option for for 100 - 1000 ml jars, but not for larger jars. St?lzle (who also produce high quality borosilicate stoppered jars) is a possible source for such jars, but there are many others as well: https://pharma.stoelzle.com/en/product_category/weithalsglaser/ So as mostly no clear cut answer, but hopefully one that is useful. All the best Dirk Am 20.11.2020 um 00:29 schrieb Haff, Tonya (NCMI, Crace): Hi all, I know I?ve asked about this before, but may I please clarify again?. Does anyone have preference regarding PTFE (e.g. Teflon, I believe) lid liners vs F217 liners, which are layered polyethylene (as far as I understand). Can anyone give me advice as to what would be better as a lid liner for specimens kept in 70-90% EtOH? Advice very appreciated! Cheers, Tonya --------------------------------------------------------- Dr Tonya Haff Collections Manager Australian National Wildlife Collection National Research Collections Australia, CSIRO Canberra, Australia Phone: (+61) 02 6242 1566 (office) (+61) 0419 569 109 (mobile) _______________________________________________ Nhcoll-l mailing list Nhcoll-l at mailman.yale.edu https://mailman.yale.edu/mailman/listinfo/nhcoll-l _______________________________________________ NHCOLL-L is brought to you by the Society for the Preservation of Natural History Collections (SPNHC), an international society whose mission is to improve the preservation, conservation and management of natural history collections to ensure their continuing value to society. See http://www.spnhc.org for membership information. Advertising on NH-COLL-L is inappropriate. -- [cid:image004.png at 01D6BF26.FC2D2D90] Dirk Neumann Tel: 089 / 8107-111 Fax: 089 / 8107-300 neumann(a)snsb.de Postanschrift: Staatliche Naturwissenschaftliche Sammlungen Bayerns Zoologische Staatssammlung M?nchen Dirk Neumann, Sektion Ichthyologie / DNA-Storage M?nchhausenstr. 21 81247 M?nchen Besuchen Sie unsere Sammlung: http://www.zsm.mwn.de/sektion/ichthyologie-home/ --------- Dirk Neumann Tel: +49-89-8107-111 Fax: +49-89-8107-300 neumann(a)snsb.de postal address: Bavarian Natural History Collections The Bavarian State Collection of Zoology Dirk Neumann, Section Ichthyology / DNA-Storage Muenchhausenstr. 21 81247 Munich (Germany) Visit our section at: http://www.zsm.mwn.de/sektion/ichthyologie-home/ -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image001.jpg Type: image/jpeg Size: 4941 bytes Desc: image001.jpg URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image002.jpg Type: image/jpeg Size: 14843 bytes Desc: image002.jpg URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image003.jpg Type: image/jpeg Size: 4856 bytes Desc: image003.jpg URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image004.png Type: image/png Size: 8593 bytes Desc: image004.png URL: From rinconrodriguezl at ufl.edu Fri Nov 20 00:22:21 2020 From: rinconrodriguezl at ufl.edu (Rincon Rodriguez,Laura) Date: Fri, 20 Nov 2020 05:22:21 +0000 Subject: [Nhcoll-l] Collections Lit Club- Third meetup Message-ID: ?Hello everybody! Hola a todos! I will have my third meetup on November 30th at 4:00pm EDT. We will be discussing with Kari Harris the articles titled Museum Director Calls for Increased Funding for Scientific Collections to Save Lives and Museums need to press the reset button and become more radical Please confirm your assistance and reserve your free spot in this link: https://www.eventbrite.com/e/collections-lit-club-third-meetup-tickets-129981874285 *The Zoom link will be available when you've registered by Eventbrite as well Join Zoom Meeting: https://ufl.zoom.us/j/91772516757 Meeting ID: 917 7251 6757 Stay tuned in my digital platform and check out more info about this initiative: https://community.wearemuseums.com (Sign in and once you get access, you will find the Circles tap on the left side of the page. Look for Collections Lit Club and join it!) Hope to see you there, and don't forget your drink! Cheers! Laura Rinc?n LinkedIn: https://www.linkedin.com/in/laura-rinc?n-3911681a6/ -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: 3th meetup Promotion flyer.jpg Type: image/jpeg Size: 282665 bytes Desc: 3th meetup Promotion flyer.jpg URL: From eric.lazo-wasem at yale.edu Fri Nov 20 14:42:11 2020 From: eric.lazo-wasem at yale.edu (Lazo-Wasem, Eric) Date: Fri, 20 Nov 2020 19:42:11 +0000 Subject: [Nhcoll-l] Jar liners In-Reply-To: References: <3ecde4298f344f7db2e7ba29824da34b@SRVBK13DB02.stadt.essen.de> Message-ID: Agreed Andy. When we received an NSF grant to move and upgrade, we went with O?Berk. I am not promoting them, but simply saying that is what we use and it has been very successful. One thing we do, which is embarassingly wasteful, is not reuse a cap after hit has been repeatedly opened and closed and the liner appears quite compressed to limit. I guess I should investigate replacement liners, so as not to toss the whole lid. This is not a wholesale activity, I suspect we spend less than $100 a year doing this and I see it as good insurance leveraged against the high cost of losing a specimen. If anyone has investigated replacing the liners on the PPE lids, I would like to hear their experience. It seems it would be easy given there is just a spot of ?glue? holding the liner in place. Eric A. Lazo-Wasem Senior Collections Manager Peabody Museum of Natural History Yale University 170 Whitney Ave. New Haven, CT 06520 203 432-3784 From: Nhcoll-l On Behalf Of Bentley, Andrew Charles Sent: Friday, November 20, 2020 11:22 AM To: Rob Robins ; Callomon,Paul ; Neisskenwirth, Fabian ; 'neumann at snsb.de' ; nhcoll-l at mailman.yale.edu Subject: Re: [Nhcoll-l] Jar liners We too have been replacing old orange gaskets with the new buna-n gaskets over time and these have proved to be far superior. We do also have a policy of changing all old bail-top jars to screw tops from O?Berk whenever a jar needs attention. We do not have the funds to wholesale replace all of them but hopefully over time will do so. We have seen very few problems with the jars and lids from O?Berk besides a couple of bad batches of lids that have failed more often than others and the over or under tightening problems mentioned already. These jars are cost effective and curation friendly and come in a wide variety of sizes, shapes and mouth opening sizes. Andy A : A : A : }<(((_?>.,.,.,.}<(((_?>.,.,.,.}<)))_?> V V V Andy Bentley Ichthyology Collection Manager University of Kansas Biodiversity Institute Dyche Hall 1345 Jayhawk Boulevard Lawrence, KS, 66045-7561 USA Tel: (785) 864-3863 Fax: (785) 864-5335 Email: abentley at ku.edu http://ichthyology.biodiversity.ku.edu A : A : A : }<(((_?>.,.,.,.}<(((_?>.,.,.,.}<)))_?> V V V From: Nhcoll-l > on behalf of Rob Robins > Date: Friday, November 20, 2020 at 8:55 AM To: "Callomon,Paul" >, "Neisskenwirth, Fabian" >, "'neumann at snsb.de'" >, "nhcoll-l at mailman.yale.edu" > Subject: Re: [Nhcoll-l] Jar liners Hi Folks, Would like to contribute an observation on the bail top jars ? I agree that the seals are excellent at resisting evaporation, with a major caveat: the gaskets deteriorate (at least gaskets of the type that came to us via a large relinquished collection in the 1980s). See image 1. Nearly all bail tops in our care require a levering tool to break the seal between glass and gasket (>90%), such as a stout short-bladed paint scraper. Using the tool safely takes knowhow and dexterity (brute force will work but with the attendant risk of impaling one?s hand with the tool ? and thus is strongly cautioned against). See image 2. Following jar opening, old gaskets on these old bail tops at UF are unredeemable (99% of the time). Exposed parts of the gasket are usually brittle and flake away, while the gasket that comprised the seal that lasted decades may be fully or partly molded to the jar ? totally affixed. This latter circumstance renders the jar worthless, as no replacement gasket can be placed upon such an irregular surface. See images 3 and 4. For these reasons and others, whenever we work with bail top specimen lots, we replace the jars with screw top containers -- usually at a space savings (note Paul?s comment about a limited offering of rather large sizes). If the above situation is only avoided with regular replacement of gaskets ? that needs to be considered as ongoing maintenance costs associated with the use of this jar type. But perhaps local conditions have not always been ideal and thus the gaskets degraded more rapidly than they do under ideal conditions. If so, that also should be considered by those collections whose facilities can?t always meet optimal conditions. It could also be our gaskets are of an inferior material, since improved upon or replaced by manufacturers of these containers systems. I am unclear on these points and look forward to learning more. Best wishes, Rob Robert H. Robins Collection Manager Division of Ichthyology [FLMNH Fishes logo email small] Florida Museum of Natural History 1659 Museum Rd. Gainesville, FL 32611-7800 Office: (352) 273-1957 rhrobins at flmnh.ufl.edu Search the Collection: http://specifyportal.flmnh.ufl.edu/fishes/ Search samples suitable for dna analysis: https://www.floridamuseum.ufl.edu/grr/holdings/ [cid:image002.jpg at 01D6BF4A.F75C3A30] [cid:image003.jpg at 01D6BF4A.F75C3A30] From: Nhcoll-l > On Behalf Of Callomon,Paul Sent: Friday, November 20, 2020 8:00 AM To: Neisskenwirth, Fabian >; 'neumann at snsb.de' >; nhcoll-l at mailman.yale.edu Subject: Re: [Nhcoll-l] Jar liners [External Email] We recently overhauled our 50,000-jar alcohol collection for the first time in 50 years. We found the following things for lids on screw-top jars: * Steel lids are problematic. Ours were painted black on the outside and cadmium-plated inside with solid plastic seals. The seals had almost all held, but the lids themselves had pinpoint rusting from the inside due to condensation. If those pinpoints get through the metal, the lid is more likely to fail. We?ve replaced them all. * PPE lids with either solid PPE disks or F217 liners are both fine. We started using them in the 1980s (PPE disks) and 1990s (F217) and both have lasted well, with a failure rate below 1% * Phenolic lids with coneseal liners ? very good. Bakelite and phenolic lids with food-grade-paper (coated or foil-laminated card) liners ? high failure rate. We replaced them all. * Note that there is a difference between pure phenolic resin and Bakelite. The latter has wood dust mixed with the resin, and always fails over time, often suddenly and completely. You can usually tell the difference by the gloss, color and size; Bakelite is not as black or as glossy as phenolic. If it?s over 50 mm in diameter it?s likely to be Bakelite. * However, as Dirk points out, although phenolic resin is fine with ethanol it can be affected by formaldehyde. We have also found that phenolic will leach dark color into alcohol if it is immersed for more than a year, so it?s clearly not entirely stable to ethanol either. Finally, though they are not available in small sizes the most stable and economical jars in our collection are bale jars with galvanized steel bale clips and either natural rubber, butyl or neoprene gaskets (e. g. ?Ball?-brand jars). These effectively never fail. Paul Callomon MSc Collection Manager, Malacology and General Invertebrates ________________________________ Academy of Natural Sciences of Drexel University, Philadelphia 1900 Benjamin Franklin Parkway, Philadelphia PA 19103-1195, USA prc44 at drexel.edu Tel 215-405-5096 - Fax 215-299-1170 From: Nhcoll-l > On Behalf Of Neisskenwirth, Fabian Sent: Friday, November 20, 2020 4:09 AM To: 'neumann at snsb.de' >; nhcoll-l at mailman.yale.edu Subject: Re: [Nhcoll-l] Jar liners External. Hey there, I totally agree with Dirks statement. Glass lids are much more stable than any other kind of material used in fluid collections. I would like to share my experience with a sort of new jar type from Duran? (former Schott). They have a product line called ?GLS 80? jars. It has a mouth opening of 80 mm, but the size varies from 500ml to 25000 ml. The mouth opening works very well for smaller specimens. The jars are made of borosilicate and sold at an affordable price, because they are made for the pharma industry. This is why they also have ?filling marks?, which esthetically speaking is not so nice, but it still fulfills the purpose of the jar. One of the sales agents of DWK (Duran Group), offered me that at a certain amount of jars, there could be a batch (around 1000 jars) made without ?filling marks?. There is a new type of lid for this jars too, made of Polysulfone (PSU) with a PTFE coated silicone liner. The Duran Group works worldwide, so if you have any questions regarding this contact Eric Lehnen (eric.lehnen at dwk.com). He knows about the use of the jars for collections purpose. This seems to be a very good improvement to move away from poor quality ?sausage jars? with fast degrading lids. I have made a one year aging test with three jars with ethanol 70% mixed with a buffered formaldehyde solution 3,4% (9:1) and have seen no negative reactions on the lids. But this still should be tested more thoroughly. Hope this helps you out! -- Fabian Neisskenwirth Zoologischer Pr?parator MA Student Restaurierung und Konservierung von Kulturgut +49 (0) 201 24681 470 Stiftung Ruhr Museum Fritz-Schupp-Allee 15 45141 Essen www.ruhrmuseum.de Von: Nhcoll-l [mailto:nhcoll-l-bounces at mailman.yale.edu] Im Auftrag von Dirk Neumann Gesendet: Freitag, 20. November 2020 09:10 An: nhcoll-l at mailman.yale.edu Betreff: Re: [Nhcoll-l] Jar liners Hi Tonya & Lennart, I guess there are several layers to unfold here: Foamed liners - like the F217 liners you mention - consist of a foamed cell structure which - if the lid is screwed down tight - is compressed again the neck of the jar. This outs the cells under pressure and closed cells would withstand this tension better then open cell structures. It is hard to tell if the F217 liners you mention has open or closed cells, which gas is used for filling of the foam structure, etc. Even if the F217 liners would have the right composition, right thickness, closed cells - it still a is compressible gasket which has a limited life span. To produce a good closure, you would further need to consider the threads on the jar (continuous or not), the composition of the lid itself (the best liner does not help if the plastic used for the lid itself is of poor quality, etc. Most important seems to me that sizes of such lids are standardised (rather then customised for specific jars), so that they can easily be replaced if they fail. This is one of the huge problems many collections with Copehagen jars now face after plastic lids reached the end of their life span, sized where customised, company went out of production: it is virtually impossible to replace these lids - which causes huge problems in many collections. It seems that F217 and PTFE liners are often used as inlays for Phenolic caps (Bakelite) - which is a no-go in fluid collections because this sort of thermoset plastics is easily degraded by residual formaldehyde escaping from formaldehyde preserved specimens, even if they have been transferred in to alcohol. As said: the best liner is worthless if the plastic lid itself is unsuited. In general, plastic lids are not a good oxygen barrier - this is also worth remembering, especially if specimens inside such jars release a lot of fats or oils. Rather then concentrating on specific lids I would look into jars that are designed for the pharmaceutical sector. Here, both the jar (soda-lime glass) and the lid are expected (and usually tested) to withstand a wide range of chemicals AND to provide a good barrier against oxygen. There are different suppliers of such jars, the disadvantage of the wide mouth jars however is that the largest opening in these jars is 65 mm. So a good option for for 100 - 1000 ml jars, but not for larger jars. St?lzle (who also produce high quality borosilicate stoppered jars) is a possible source for such jars, but there are many others as well: https://pharma.stoelzle.com/en/product_category/weithalsglaser/ So as mostly no clear cut answer, but hopefully one that is useful. All the best Dirk Am 20.11.2020 um 00:29 schrieb Haff, Tonya (NCMI, Crace): Hi all, I know I?ve asked about this before, but may I please clarify again?. Does anyone have preference regarding PTFE (e.g. Teflon, I believe) lid liners vs F217 liners, which are layered polyethylene (as far as I understand). Can anyone give me advice as to what would be better as a lid liner for specimens kept in 70-90% EtOH? Advice very appreciated! Cheers, Tonya --------------------------------------------------------- Dr Tonya Haff Collections Manager Australian National Wildlife Collection National Research Collections Australia, CSIRO Canberra, Australia Phone: (+61) 02 6242 1566 (office) (+61) 0419 569 109 (mobile) _______________________________________________ Nhcoll-l mailing list Nhcoll-l at mailman.yale.edu https://mailman.yale.edu/mailman/listinfo/nhcoll-l _______________________________________________ NHCOLL-L is brought to you by the Society for the Preservation of Natural History Collections (SPNHC), an international society whose mission is to improve the preservation, conservation and management of natural history collections to ensure their continuing value to society. See http://www.spnhc.org for membership information. Advertising on NH-COLL-L is inappropriate. -- [cid:image004.png at 01D6BF4A.F75C3A30] Dirk Neumann Tel: 089 / 8107-111 Fax: 089 / 8107-300 neumann(a)snsb.de Postanschrift: Staatliche Naturwissenschaftliche Sammlungen Bayerns Zoologische Staatssammlung M?nchen Dirk Neumann, Sektion Ichthyologie / DNA-Storage M?nchhausenstr. 21 81247 M?nchen Besuchen Sie unsere Sammlung: http://www.zsm.mwn.de/sektion/ichthyologie-home/ --------- Dirk Neumann Tel: +49-89-8107-111 Fax: +49-89-8107-300 neumann(a)snsb.de postal address: Bavarian Natural History Collections The Bavarian State Collection of Zoology Dirk Neumann, Section Ichthyology / DNA-Storage Muenchhausenstr. 21 81247 Munich (Germany) Visit our section at: http://www.zsm.mwn.de/sektion/ichthyologie-home/ -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image001.jpg Type: image/jpeg Size: 4941 bytes Desc: image001.jpg URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image002.jpg Type: image/jpeg Size: 14843 bytes Desc: image002.jpg URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image003.jpg Type: image/jpeg Size: 4856 bytes Desc: image003.jpg URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image004.png Type: image/png Size: 8593 bytes Desc: image004.png URL: From prc44 at drexel.edu Fri Nov 20 14:54:55 2020 From: prc44 at drexel.edu (Callomon,Paul) Date: Fri, 20 Nov 2020 19:54:55 +0000 Subject: [Nhcoll-l] Jar liners In-Reply-To: References: <3ecde4298f344f7db2e7ba29824da34b@SRVBK13DB02.stadt.essen.de> Message-ID: I re-use PPE F217 lids, once they?ve been decontaminated. Just because the liner is squished at the time you remove it does not mean it won?t still work. If you leave them a while they un-squish, demonstrating that the material is not permanently deformed. Paul Callomon MSc Collection Manager, Malacology and General Invertebrates ________________________________ Academy of Natural Sciences of Drexel University, Philadelphia 1900 Benjamin Franklin Parkway, Philadelphia PA 19103-1195, USA prc44 at drexel.edu Tel 215-405-5096 - Fax 215-299-1170 From: Lazo-Wasem, Eric Sent: Friday, November 20, 2020 2:42 PM To: Bentley, Andrew Charles ; Rob Robins ; Callomon,Paul ; Neisskenwirth, Fabian ; 'neumann at snsb.de' ; nhcoll-l at mailman.yale.edu Subject: RE: [Nhcoll-l] Jar liners External. Agreed Andy. When we received an NSF grant to move and upgrade, we went with O?Berk. I am not promoting them, but simply saying that is what we use and it has been very successful. One thing we do, which is embarassingly wasteful, is not reuse a cap after hit has been repeatedly opened and closed and the liner appears quite compressed to limit. I guess I should investigate replacement liners, so as not to toss the whole lid. This is not a wholesale activity, I suspect we spend less than $100 a year doing this and I see it as good insurance leveraged against the high cost of losing a specimen. If anyone has investigated replacing the liners on the PPE lids, I would like to hear their experience. It seems it would be easy given there is just a spot of ?glue? holding the liner in place. Eric A. Lazo-Wasem Senior Collections Manager Peabody Museum of Natural History Yale University 170 Whitney Ave. New Haven, CT 06520 203 432-3784 From: Nhcoll-l > On Behalf Of Bentley, Andrew Charles Sent: Friday, November 20, 2020 11:22 AM To: Rob Robins >; Callomon,Paul >; Neisskenwirth, Fabian >; 'neumann at snsb.de' >; nhcoll-l at mailman.yale.edu Subject: Re: [Nhcoll-l] Jar liners We too have been replacing old orange gaskets with the new buna-n gaskets over time and these have proved to be far superior. We do also have a policy of changing all old bail-top jars to screw tops from O?Berk whenever a jar needs attention. We do not have the funds to wholesale replace all of them but hopefully over time will do so. We have seen very few problems with the jars and lids from O?Berk besides a couple of bad batches of lids that have failed more often than others and the over or under tightening problems mentioned already. These jars are cost effective and curation friendly and come in a wide variety of sizes, shapes and mouth opening sizes. Andy A : A : A : }<(((_?>.,.,.,.}<(((_?>.,.,.,.}<)))_?> V V V Andy Bentley Ichthyology Collection Manager University of Kansas Biodiversity Institute Dyche Hall 1345 Jayhawk Boulevard Lawrence, KS, 66045-7561 USA Tel: (785) 864-3863 Fax: (785) 864-5335 Email: abentley at ku.edu http://ichthyology.biodiversity.ku.edu A : A : A : }<(((_?>.,.,.,.}<(((_?>.,.,.,.}<)))_?> V V V From: Nhcoll-l > on behalf of Rob Robins > Date: Friday, November 20, 2020 at 8:55 AM To: "Callomon,Paul" >, "Neisskenwirth, Fabian" >, "'neumann at snsb.de'" >, "nhcoll-l at mailman.yale.edu" > Subject: Re: [Nhcoll-l] Jar liners Hi Folks, Would like to contribute an observation on the bail top jars ? I agree that the seals are excellent at resisting evaporation, with a major caveat: the gaskets deteriorate (at least gaskets of the type that came to us via a large relinquished collection in the 1980s). See image 1. Nearly all bail tops in our care require a levering tool to break the seal between glass and gasket (>90%), such as a stout short-bladed paint scraper. Using the tool safely takes knowhow and dexterity (brute force will work but with the attendant risk of impaling one?s hand with the tool ? and thus is strongly cautioned against). See image 2. Following jar opening, old gaskets on these old bail tops at UF are unredeemable (99% of the time). Exposed parts of the gasket are usually brittle and flake away, while the gasket that comprised the seal that lasted decades may be fully or partly molded to the jar ? totally affixed. This latter circumstance renders the jar worthless, as no replacement gasket can be placed upon such an irregular surface. See images 3 and 4. For these reasons and others, whenever we work with bail top specimen lots, we replace the jars with screw top containers -- usually at a space savings (note Paul?s comment about a limited offering of rather large sizes). If the above situation is only avoided with regular replacement of gaskets ? that needs to be considered as ongoing maintenance costs associated with the use of this jar type. But perhaps local conditions have not always been ideal and thus the gaskets degraded more rapidly than they do under ideal conditions. If so, that also should be considered by those collections whose facilities can?t always meet optimal conditions. It could also be our gaskets are of an inferior material, since improved upon or replaced by manufacturers of these containers systems. I am unclear on these points and look forward to learning more. Best wishes, Rob Robert H. Robins Collection Manager Division of Ichthyology [FLMNH Fishes logo email small] Florida Museum of Natural History 1659 Museum Rd. Gainesville, FL 32611-7800 Office: (352) 273-1957 rhrobins at flmnh.ufl.edu Search the Collection: http://specifyportal.flmnh.ufl.edu/fishes/ Search samples suitable for dna analysis: https://www.floridamuseum.ufl.edu/grr/holdings/ [cid:image002.jpg at 01D6BF4D.1ADE94B0] [cid:image003.jpg at 01D6BF4D.1ADE94B0] From: Nhcoll-l > On Behalf Of Callomon,Paul Sent: Friday, November 20, 2020 8:00 AM To: Neisskenwirth, Fabian >; 'neumann at snsb.de' >; nhcoll-l at mailman.yale.edu Subject: Re: [Nhcoll-l] Jar liners [External Email] We recently overhauled our 50,000-jar alcohol collection for the first time in 50 years. We found the following things for lids on screw-top jars: - Steel lids are problematic. Ours were painted black on the outside and cadmium-plated inside with solid plastic seals. The seals had almost all held, but the lids themselves had pinpoint rusting from the inside due to condensation. If those pinpoints get through the metal, the lid is more likely to fail. We?ve replaced them all. - PPE lids with either solid PPE disks or F217 liners are both fine. We started using them in the 1980s (PPE disks) and 1990s (F217) and both have lasted well, with a failure rate below 1% - Phenolic lids with coneseal liners ? very good. Bakelite and phenolic lids with food-grade-paper (coated or foil-laminated card) liners ? high failure rate. We replaced them all. - Note that there is a difference between pure phenolic resin and Bakelite. The latter has wood dust mixed with the resin, and always fails over time, often suddenly and completely. You can usually tell the difference by the gloss, color and size; Bakelite is not as black or as glossy as phenolic. If it?s over 50 mm in diameter it?s likely to be Bakelite. - However, as Dirk points out, although phenolic resin is fine with ethanol it can be affected by formaldehyde. We have also found that phenolic will leach dark color into alcohol if it is immersed for more than a year, so it?s clearly not entirely stable to ethanol either. Finally, though they are not available in small sizes the most stable and economical jars in our collection are bale jars with galvanized steel bale clips and either natural rubber, butyl or neoprene gaskets (e. g. ?Ball?-brand jars). These effectively never fail. Paul Callomon MSc Collection Manager, Malacology and General Invertebrates ________________________________ Academy of Natural Sciences of Drexel University, Philadelphia 1900 Benjamin Franklin Parkway, Philadelphia PA 19103-1195, USA prc44 at drexel.edu Tel 215-405-5096 - Fax 215-299-1170 From: Nhcoll-l > On Behalf Of Neisskenwirth, Fabian Sent: Friday, November 20, 2020 4:09 AM To: 'neumann at snsb.de' >; nhcoll-l at mailman.yale.edu Subject: Re: [Nhcoll-l] Jar liners External. Hey there, I totally agree with Dirks statement. Glass lids are much more stable than any other kind of material used in fluid collections. I would like to share my experience with a sort of new jar type from Duran? (former Schott). They have a product line called ?GLS 80? jars. It has a mouth opening of 80 mm, but the size varies from 500ml to 25000 ml. The mouth opening works very well for smaller specimens. The jars are made of borosilicate and sold at an affordable price, because they are made for the pharma industry. This is why they also have ?filling marks?, which esthetically speaking is not so nice, but it still fulfills the purpose of the jar. One of the sales agents of DWK (Duran Group), offered me that at a certain amount of jars, there could be a batch (around 1000 jars) made without ?filling marks?. There is a new type of lid for this jars too, made of Polysulfone (PSU) with a PTFE coated silicone liner. The Duran Group works worldwide, so if you have any questions regarding this contact Eric Lehnen (eric.lehnen at dwk.com). He knows about the use of the jars for collections purpose. This seems to be a very good improvement to move away from poor quality ?sausage jars? with fast degrading lids. I have made a one year aging test with three jars with ethanol 70% mixed with a buffered formaldehyde solution 3,4% (9:1) and have seen no negative reactions on the lids. But this still should be tested more thoroughly. Hope this helps you out! -- Fabian Neisskenwirth Zoologischer Pr?parator MA Student Restaurierung und Konservierung von Kulturgut +49 (0) 201 24681 470 Stiftung Ruhr Museum Fritz-Schupp-Allee 15 45141 Essen www.ruhrmuseum.de Von: Nhcoll-l [mailto:nhcoll-l-bounces at mailman.yale.edu] Im Auftrag von Dirk Neumann Gesendet: Freitag, 20. November 2020 09:10 An: nhcoll-l at mailman.yale.edu Betreff: Re: [Nhcoll-l] Jar liners Hi Tonya & Lennart, I guess there are several layers to unfold here: Foamed liners - like the F217 liners you mention - consist of a foamed cell structure which - if the lid is screwed down tight - is compressed again the neck of the jar. This outs the cells under pressure and closed cells would withstand this tension better then open cell structures. It is hard to tell if the F217 liners you mention has open or closed cells, which gas is used for filling of the foam structure, etc. Even if the F217 liners would have the right composition, right thickness, closed cells - it still a is compressible gasket which has a limited life span. To produce a good closure, you would further need to consider the threads on the jar (continuous or not), the composition of the lid itself (the best liner does not help if the plastic used for the lid itself is of poor quality, etc. Most important seems to me that sizes of such lids are standardised (rather then customised for specific jars), so that they can easily be replaced if they fail. This is one of the huge problems many collections with Copehagen jars now face after plastic lids reached the end of their life span, sized where customised, company went out of production: it is virtually impossible to replace these lids - which causes huge problems in many collections. It seems that F217 and PTFE liners are often used as inlays for Phenolic caps (Bakelite) - which is a no-go in fluid collections because this sort of thermoset plastics is easily degraded by residual formaldehyde escaping from formaldehyde preserved specimens, even if they have been transferred in to alcohol. As said: the best liner is worthless if the plastic lid itself is unsuited. In general, plastic lids are not a good oxygen barrier - this is also worth remembering, especially if specimens inside such jars release a lot of fats or oils. Rather then concentrating on specific lids I would look into jars that are designed for the pharmaceutical sector. Here, both the jar (soda-lime glass) and the lid are expected (and usually tested) to withstand a wide range of chemicals AND to provide a good barrier against oxygen. There are different suppliers of such jars, the disadvantage of the wide mouth jars however is that the largest opening in these jars is 65 mm. So a good option for for 100 - 1000 ml jars, but not for larger jars. St?lzle (who also produce high quality borosilicate stoppered jars) is a possible source for such jars, but there are many others as well: https://pharma.stoelzle.com/en/product_category/weithalsglaser/ So as mostly no clear cut answer, but hopefully one that is useful. All the best Dirk Am 20.11.2020 um 00:29 schrieb Haff, Tonya (NCMI, Crace): Hi all, I know I?ve asked about this before, but may I please clarify again?. Does anyone have preference regarding PTFE (e.g. Teflon, I believe) lid liners vs F217 liners, which are layered polyethylene (as far as I understand). Can anyone give me advice as to what would be better as a lid liner for specimens kept in 70-90% EtOH? Advice very appreciated! Cheers, Tonya --------------------------------------------------------- Dr Tonya Haff Collections Manager Australian National Wildlife Collection National Research Collections Australia, CSIRO Canberra, Australia Phone: (+61) 02 6242 1566 (office) (+61) 0419 569 109 (mobile) _______________________________________________ Nhcoll-l mailing list Nhcoll-l at mailman.yale.edu https://mailman.yale.edu/mailman/listinfo/nhcoll-l _______________________________________________ NHCOLL-L is brought to you by the Society for the Preservation of Natural History Collections (SPNHC), an international society whose mission is to improve the preservation, conservation and management of natural history collections to ensure their continuing value to society. See http://www.spnhc.org for membership information. Advertising on NH-COLL-L is inappropriate. -- [cid:image004.png at 01D6BF4D.1ADE94B0] Dirk Neumann Tel: 089 / 8107-111 Fax: 089 / 8107-300 neumann(a)snsb.de Postanschrift: Staatliche Naturwissenschaftliche Sammlungen Bayerns Zoologische Staatssammlung M?nchen Dirk Neumann, Sektion Ichthyologie / DNA-Storage M?nchhausenstr. 21 81247 M?nchen Besuchen Sie unsere Sammlung: http://www.zsm.mwn.de/sektion/ichthyologie-home/ --------- Dirk Neumann Tel: +49-89-8107-111 Fax: +49-89-8107-300 neumann(a)snsb.de postal address: Bavarian Natural History Collections The Bavarian State Collection of Zoology Dirk Neumann, Section Ichthyology / DNA-Storage Muenchhausenstr. 21 81247 Munich (Germany) Visit our section at: http://www.zsm.mwn.de/sektion/ichthyologie-home/ -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image001.jpg Type: image/jpeg Size: 4941 bytes Desc: image001.jpg URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image002.jpg Type: image/jpeg Size: 14843 bytes Desc: image002.jpg URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image003.jpg Type: image/jpeg Size: 4856 bytes Desc: image003.jpg URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image004.png Type: image/png Size: 8593 bytes Desc: image004.png URL: From eric.lazo-wasem at yale.edu Fri Nov 20 14:58:42 2020 From: eric.lazo-wasem at yale.edu (Lazo-Wasem, Eric) Date: Fri, 20 Nov 2020 19:58:42 +0000 Subject: [Nhcoll-l] Jar liners In-Reply-To: References: <3ecde4298f344f7db2e7ba29824da34b@SRVBK13DB02.stadt.essen.de> Message-ID: Of course decontaminated ? good point. I was not aware the deformation is temporary and the will ?un-squish.? I will examine this more closely. Intersting thread all, thanks. Eric A. Lazo-Wasem Senior Collections Manager Peabody Museum of Natural History Yale University 170 Whitney Ave. New Haven, CT 06520 203 432-3784 From: Callomon,Paul Sent: Friday, November 20, 2020 2:55 PM To: Lazo-Wasem, Eric ; Bentley, Andrew Charles ; Rob Robins ; Neisskenwirth, Fabian ; 'neumann at snsb.de' ; nhcoll-l at mailman.yale.edu Subject: RE: [Nhcoll-l] Jar liners I re-use PPE F217 lids, once they?ve been decontaminated. Just because the liner is squished at the time you remove it does not mean it won?t still work. If you leave them a while they un-squish, demonstrating that the material is not permanently deformed. Paul Callomon MSc Collection Manager, Malacology and General Invertebrates ________________________________ Academy of Natural Sciences of Drexel University, Philadelphia 1900 Benjamin Franklin Parkway, Philadelphia PA 19103-1195, USA prc44 at drexel.edu Tel 215-405-5096 - Fax 215-299-1170 From: Lazo-Wasem, Eric > Sent: Friday, November 20, 2020 2:42 PM To: Bentley, Andrew Charles >; Rob Robins >; Callomon,Paul >; Neisskenwirth, Fabian >; 'neumann at snsb.de' >; nhcoll-l at mailman.yale.edu Subject: RE: [Nhcoll-l] Jar liners External. Agreed Andy. When we received an NSF grant to move and upgrade, we went with O?Berk. I am not promoting them, but simply saying that is what we use and it has been very successful. One thing we do, which is embarassingly wasteful, is not reuse a cap after hit has been repeatedly opened and closed and the liner appears quite compressed to limit. I guess I should investigate replacement liners, so as not to toss the whole lid. This is not a wholesale activity, I suspect we spend less than $100 a year doing this and I see it as good insurance leveraged against the high cost of losing a specimen. If anyone has investigated replacing the liners on the PPE lids, I would like to hear their experience. It seems it would be easy given there is just a spot of ?glue? holding the liner in place. Eric A. Lazo-Wasem Senior Collections Manager Peabody Museum of Natural History Yale University 170 Whitney Ave. New Haven, CT 06520 203 432-3784 From: Nhcoll-l > On Behalf Of Bentley, Andrew Charles Sent: Friday, November 20, 2020 11:22 AM To: Rob Robins >; Callomon,Paul >; Neisskenwirth, Fabian >; 'neumann at snsb.de' >; nhcoll-l at mailman.yale.edu Subject: Re: [Nhcoll-l] Jar liners We too have been replacing old orange gaskets with the new buna-n gaskets over time and these have proved to be far superior. We do also have a policy of changing all old bail-top jars to screw tops from O?Berk whenever a jar needs attention. We do not have the funds to wholesale replace all of them but hopefully over time will do so. We have seen very few problems with the jars and lids from O?Berk besides a couple of bad batches of lids that have failed more often than others and the over or under tightening problems mentioned already. These jars are cost effective and curation friendly and come in a wide variety of sizes, shapes and mouth opening sizes. Andy A : A : A : }<(((_?>.,.,.,.}<(((_?>.,.,.,.}<)))_?> V V V Andy Bentley Ichthyology Collection Manager University of Kansas Biodiversity Institute Dyche Hall 1345 Jayhawk Boulevard Lawrence, KS, 66045-7561 USA Tel: (785) 864-3863 Fax: (785) 864-5335 Email: abentley at ku.edu http://ichthyology.biodiversity.ku.edu A : A : A : }<(((_?>.,.,.,.}<(((_?>.,.,.,.}<)))_?> V V V From: Nhcoll-l > on behalf of Rob Robins > Date: Friday, November 20, 2020 at 8:55 AM To: "Callomon,Paul" >, "Neisskenwirth, Fabian" >, "'neumann at snsb.de'" >, "nhcoll-l at mailman.yale.edu" > Subject: Re: [Nhcoll-l] Jar liners Hi Folks, Would like to contribute an observation on the bail top jars ? I agree that the seals are excellent at resisting evaporation, with a major caveat: the gaskets deteriorate (at least gaskets of the type that came to us via a large relinquished collection in the 1980s). See image 1. Nearly all bail tops in our care require a levering tool to break the seal between glass and gasket (>90%), such as a stout short-bladed paint scraper. Using the tool safely takes knowhow and dexterity (brute force will work but with the attendant risk of impaling one?s hand with the tool ? and thus is strongly cautioned against). See image 2. Following jar opening, old gaskets on these old bail tops at UF are unredeemable (99% of the time). Exposed parts of the gasket are usually brittle and flake away, while the gasket that comprised the seal that lasted decades may be fully or partly molded to the jar ? totally affixed. This latter circumstance renders the jar worthless, as no replacement gasket can be placed upon such an irregular surface. See images 3 and 4. For these reasons and others, whenever we work with bail top specimen lots, we replace the jars with screw top containers -- usually at a space savings (note Paul?s comment about a limited offering of rather large sizes). If the above situation is only avoided with regular replacement of gaskets ? that needs to be considered as ongoing maintenance costs associated with the use of this jar type. But perhaps local conditions have not always been ideal and thus the gaskets degraded more rapidly than they do under ideal conditions. If so, that also should be considered by those collections whose facilities can?t always meet optimal conditions. It could also be our gaskets are of an inferior material, since improved upon or replaced by manufacturers of these containers systems. I am unclear on these points and look forward to learning more. Best wishes, Rob Robert H. Robins Collection Manager Division of Ichthyology [FLMNH Fishes logo email small] Florida Museum of Natural History 1659 Museum Rd. Gainesville, FL 32611-7800 Office: (352) 273-1957 rhrobins at flmnh.ufl.edu Search the Collection: http://specifyportal.flmnh.ufl.edu/fishes/ Search samples suitable for dna analysis: https://www.floridamuseum.ufl.edu/grr/holdings/ [cid:image002.jpg at 01D6BF4D.A27916C0] [cid:image003.jpg at 01D6BF4D.A27916C0] From: Nhcoll-l > On Behalf Of Callomon,Paul Sent: Friday, November 20, 2020 8:00 AM To: Neisskenwirth, Fabian >; 'neumann at snsb.de' >; nhcoll-l at mailman.yale.edu Subject: Re: [Nhcoll-l] Jar liners [External Email] We recently overhauled our 50,000-jar alcohol collection for the first time in 50 years. We found the following things for lids on screw-top jars: - Steel lids are problematic. Ours were painted black on the outside and cadmium-plated inside with solid plastic seals. The seals had almost all held, but the lids themselves had pinpoint rusting from the inside due to condensation. If those pinpoints get through the metal, the lid is more likely to fail. We?ve replaced them all. - PPE lids with either solid PPE disks or F217 liners are both fine. We started using them in the 1980s (PPE disks) and 1990s (F217) and both have lasted well, with a failure rate below 1% - Phenolic lids with coneseal liners ? very good. Bakelite and phenolic lids with food-grade-paper (coated or foil-laminated card) liners ? high failure rate. We replaced them all. - Note that there is a difference between pure phenolic resin and Bakelite. The latter has wood dust mixed with the resin, and always fails over time, often suddenly and completely. You can usually tell the difference by the gloss, color and size; Bakelite is not as black or as glossy as phenolic. If it?s over 50 mm in diameter it?s likely to be Bakelite. - However, as Dirk points out, although phenolic resin is fine with ethanol it can be affected by formaldehyde. We have also found that phenolic will leach dark color into alcohol if it is immersed for more than a year, so it?s clearly not entirely stable to ethanol either. Finally, though they are not available in small sizes the most stable and economical jars in our collection are bale jars with galvanized steel bale clips and either natural rubber, butyl or neoprene gaskets (e. g. ?Ball?-brand jars). These effectively never fail. Paul Callomon MSc Collection Manager, Malacology and General Invertebrates ________________________________ Academy of Natural Sciences of Drexel University, Philadelphia 1900 Benjamin Franklin Parkway, Philadelphia PA 19103-1195, USA prc44 at drexel.edu Tel 215-405-5096 - Fax 215-299-1170 From: Nhcoll-l > On Behalf Of Neisskenwirth, Fabian Sent: Friday, November 20, 2020 4:09 AM To: 'neumann at snsb.de' >; nhcoll-l at mailman.yale.edu Subject: Re: [Nhcoll-l] Jar liners External. Hey there, I totally agree with Dirks statement. Glass lids are much more stable than any other kind of material used in fluid collections. I would like to share my experience with a sort of new jar type from Duran? (former Schott). They have a product line called ?GLS 80? jars. It has a mouth opening of 80 mm, but the size varies from 500ml to 25000 ml. The mouth opening works very well for smaller specimens. The jars are made of borosilicate and sold at an affordable price, because they are made for the pharma industry. This is why they also have ?filling marks?, which esthetically speaking is not so nice, but it still fulfills the purpose of the jar. One of the sales agents of DWK (Duran Group), offered me that at a certain amount of jars, there could be a batch (around 1000 jars) made without ?filling marks?. There is a new type of lid for this jars too, made of Polysulfone (PSU) with a PTFE coated silicone liner. The Duran Group works worldwide, so if you have any questions regarding this contact Eric Lehnen (eric.lehnen at dwk.com). He knows about the use of the jars for collections purpose. This seems to be a very good improvement to move away from poor quality ?sausage jars? with fast degrading lids. I have made a one year aging test with three jars with ethanol 70% mixed with a buffered formaldehyde solution 3,4% (9:1) and have seen no negative reactions on the lids. But this still should be tested more thoroughly. Hope this helps you out! -- Fabian Neisskenwirth Zoologischer Pr?parator MA Student Restaurierung und Konservierung von Kulturgut +49 (0) 201 24681 470 Stiftung Ruhr Museum Fritz-Schupp-Allee 15 45141 Essen www.ruhrmuseum.de Von: Nhcoll-l [mailto:nhcoll-l-bounces at mailman.yale.edu] Im Auftrag von Dirk Neumann Gesendet: Freitag, 20. November 2020 09:10 An: nhcoll-l at mailman.yale.edu Betreff: Re: [Nhcoll-l] Jar liners Hi Tonya & Lennart, I guess there are several layers to unfold here: Foamed liners - like the F217 liners you mention - consist of a foamed cell structure which - if the lid is screwed down tight - is compressed again the neck of the jar. This outs the cells under pressure and closed cells would withstand this tension better then open cell structures. It is hard to tell if the F217 liners you mention has open or closed cells, which gas is used for filling of the foam structure, etc. Even if the F217 liners would have the right composition, right thickness, closed cells - it still a is compressible gasket which has a limited life span. To produce a good closure, you would further need to consider the threads on the jar (continuous or not), the composition of the lid itself (the best liner does not help if the plastic used for the lid itself is of poor quality, etc. Most important seems to me that sizes of such lids are standardised (rather then customised for specific jars), so that they can easily be replaced if they fail. This is one of the huge problems many collections with Copehagen jars now face after plastic lids reached the end of their life span, sized where customised, company went out of production: it is virtually impossible to replace these lids - which causes huge problems in many collections. It seems that F217 and PTFE liners are often used as inlays for Phenolic caps (Bakelite) - which is a no-go in fluid collections because this sort of thermoset plastics is easily degraded by residual formaldehyde escaping from formaldehyde preserved specimens, even if they have been transferred in to alcohol. As said: the best liner is worthless if the plastic lid itself is unsuited. In general, plastic lids are not a good oxygen barrier - this is also worth remembering, especially if specimens inside such jars release a lot of fats or oils. Rather then concentrating on specific lids I would look into jars that are designed for the pharmaceutical sector. Here, both the jar (soda-lime glass) and the lid are expected (and usually tested) to withstand a wide range of chemicals AND to provide a good barrier against oxygen. There are different suppliers of such jars, the disadvantage of the wide mouth jars however is that the largest opening in these jars is 65 mm. So a good option for for 100 - 1000 ml jars, but not for larger jars. St?lzle (who also produce high quality borosilicate stoppered jars) is a possible source for such jars, but there are many others as well: https://pharma.stoelzle.com/en/product_category/weithalsglaser/ So as mostly no clear cut answer, but hopefully one that is useful. All the best Dirk Am 20.11.2020 um 00:29 schrieb Haff, Tonya (NCMI, Crace): Hi all, I know I?ve asked about this before, but may I please clarify again?. Does anyone have preference regarding PTFE (e.g. Teflon, I believe) lid liners vs F217 liners, which are layered polyethylene (as far as I understand). Can anyone give me advice as to what would be better as a lid liner for specimens kept in 70-90% EtOH? Advice very appreciated! Cheers, Tonya --------------------------------------------------------- Dr Tonya Haff Collections Manager Australian National Wildlife Collection National Research Collections Australia, CSIRO Canberra, Australia Phone: (+61) 02 6242 1566 (office) (+61) 0419 569 109 (mobile) _______________________________________________ Nhcoll-l mailing list Nhcoll-l at mailman.yale.edu https://mailman.yale.edu/mailman/listinfo/nhcoll-l _______________________________________________ NHCOLL-L is brought to you by the Society for the Preservation of Natural History Collections (SPNHC), an international society whose mission is to improve the preservation, conservation and management of natural history collections to ensure their continuing value to society. See http://www.spnhc.org for membership information. Advertising on NH-COLL-L is inappropriate. -- [cid:image004.png at 01D6BF4D.A27916C0] Dirk Neumann Tel: 089 / 8107-111 Fax: 089 / 8107-300 neumann(a)snsb.de Postanschrift: Staatliche Naturwissenschaftliche Sammlungen Bayerns Zoologische Staatssammlung M?nchen Dirk Neumann, Sektion Ichthyologie / DNA-Storage M?nchhausenstr. 21 81247 M?nchen Besuchen Sie unsere Sammlung: http://www.zsm.mwn.de/sektion/ichthyologie-home/ --------- Dirk Neumann Tel: +49-89-8107-111 Fax: +49-89-8107-300 neumann(a)snsb.de postal address: Bavarian Natural History Collections The Bavarian State Collection of Zoology Dirk Neumann, Section Ichthyology / DNA-Storage Muenchhausenstr. 21 81247 Munich (Germany) Visit our section at: http://www.zsm.mwn.de/sektion/ichthyologie-home/ -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image001.jpg Type: image/jpeg Size: 4941 bytes Desc: image001.jpg URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image002.jpg Type: image/jpeg Size: 14843 bytes Desc: image002.jpg URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image003.jpg Type: image/jpeg Size: 4856 bytes Desc: image003.jpg URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image004.png Type: image/png Size: 8593 bytes Desc: image004.png URL: From abentley at ku.edu Fri Nov 20 15:01:19 2020 From: abentley at ku.edu (Bentley, Andrew Charles) Date: Fri, 20 Nov 2020 20:01:19 +0000 Subject: [Nhcoll-l] Jar liners In-Reply-To: References: <3ecde4298f344f7db2e7ba29824da34b@SRVBK13DB02.stadt.essen.de> Message-ID: <9290540F-C3D7-4D4B-A2E9-679C55610A05@ku.edu> ?Eric I would contact O?Berk about replacement liners. They have been very good with customer service in my opinion. Andy A : A : A : }<(((_?>.,.,.,.}<(((_?>.,.,.,.}<)))_?> V V V Andy Bentley Ichthyology Collection Manager University of Kansas Biodiversity Institute Dyche Hall 1345 Jayhawk Boulevard Lawrence, KS, 66045-7561 USA Tel: (785) 864-3863 Fax: (785) 864-5335 Email: abentley at ku.edu http://ichthyology.biodiversity.ku.edu A : A : A : }<(((_?>.,.,.,.}<(((_?>.,.,.,.}<)))_?> V V V From: "eric.lazo-wasem at yale.edu" Date: Friday, November 20, 2020 at 1:42 PM To: Andrew Bentley , Rob Robins , "Callomon,Paul" , "Neisskenwirth, Fabian" , "'neumann at snsb.de'" , "nhcoll-l at mailman.yale.edu" Subject: RE: [Nhcoll-l] Jar liners Agreed Andy. When we received an NSF grant to move and upgrade, we went with O?Berk. I am not promoting them, but simply saying that is what we use and it has been very successful. One thing we do, which is embarassingly wasteful, is not reuse a cap after hit has been repeatedly opened and closed and the liner appears quite compressed to limit. I guess I should investigate replacement liners, so as not to toss the whole lid. This is not a wholesale activity, I suspect we spend less than $100 a year doing this and I see it as good insurance leveraged against the high cost of losing a specimen. If anyone has investigated replacing the liners on the PPE lids, I would like to hear their experience. It seems it would be easy given there is just a spot of ?glue? holding the liner in place. Eric A. Lazo-Wasem Senior Collections Manager Peabody Museum of Natural History Yale University 170 Whitney Ave. New Haven, CT 06520 203 432-3784 From: Nhcoll-l On Behalf Of Bentley, Andrew Charles Sent: Friday, November 20, 2020 11:22 AM To: Rob Robins ; Callomon,Paul ; Neisskenwirth, Fabian ; 'neumann at snsb.de' ; nhcoll-l at mailman.yale.edu Subject: Re: [Nhcoll-l] Jar liners We too have been replacing old orange gaskets with the new buna-n gaskets over time and these have proved to be far superior. We do also have a policy of changing all old bail-top jars to screw tops from O?Berk whenever a jar needs attention. We do not have the funds to wholesale replace all of them but hopefully over time will do so. We have seen very few problems with the jars and lids from O?Berk besides a couple of bad batches of lids that have failed more often than others and the over or under tightening problems mentioned already. These jars are cost effective and curation friendly and come in a wide variety of sizes, shapes and mouth opening sizes. Andy A : A : A : }<(((_?>.,.,.,.}<(((_?>.,.,.,.}<)))_?> V V V Andy Bentley Ichthyology Collection Manager University of Kansas Biodiversity Institute Dyche Hall 1345 Jayhawk Boulevard Lawrence, KS, 66045-7561 USA Tel: (785) 864-3863 Fax: (785) 864-5335 Email: abentley at ku.edu http://ichthyology.biodiversity.ku.edu A : A : A : }<(((_?>.,.,.,.}<(((_?>.,.,.,.}<)))_?> V V V From: Nhcoll-l > on behalf of Rob Robins > Date: Friday, November 20, 2020 at 8:55 AM To: "Callomon,Paul" >, "Neisskenwirth, Fabian" >, "'neumann at snsb.de'" >, "nhcoll-l at mailman.yale.edu" > Subject: Re: [Nhcoll-l] Jar liners Hi Folks, Would like to contribute an observation on the bail top jars ? I agree that the seals are excellent at resisting evaporation, with a major caveat: the gaskets deteriorate (at least gaskets of the type that came to us via a large relinquished collection in the 1980s). See image 1. Nearly all bail tops in our care require a levering tool to break the seal between glass and gasket (>90%), such as a stout short-bladed paint scraper. Using the tool safely takes knowhow and dexterity (brute force will work but with the attendant risk of impaling one?s hand with the tool ? and thus is strongly cautioned against). See image 2. Following jar opening, old gaskets on these old bail tops at UF are unredeemable (99% of the time). Exposed parts of the gasket are usually brittle and flake away, while the gasket that comprised the seal that lasted decades may be fully or partly molded to the jar ? totally affixed. This latter circumstance renders the jar worthless, as no replacement gasket can be placed upon such an irregular surface. See images 3 and 4. For these reasons and others, whenever we work with bail top specimen lots, we replace the jars with screw top containers -- usually at a space savings (note Paul?s comment about a limited offering of rather large sizes). If the above situation is only avoided with regular replacement of gaskets ? that needs to be considered as ongoing maintenance costs associated with the use of this jar type. But perhaps local conditions have not always been ideal and thus the gaskets degraded more rapidly than they do under ideal conditions. If so, that also should be considered by those collections whose facilities can?t always meet optimal conditions. It could also be our gaskets are of an inferior material, since improved upon or replaced by manufacturers of these containers systems. I am unclear on these points and look forward to learning more. Best wishes, Rob Robert H. Robins Collection Manager Division of Ichthyology [FLMNH Fishes logo email small] Florida Museum of Natural History 1659 Museum Rd. Gainesville, FL 32611-7800 Office: (352) 273-1957 rhrobins at flmnh.ufl.edu Search the Collection: http://specifyportal.flmnh.ufl.edu/fishes/ Search samples suitable for dna analysis: https://www.floridamuseum.ufl.edu/grr/holdings/ [cid:image002.jpg at 01D6BF45.9E4A81E0] [cid:image003.jpg at 01D6BF45.9E4A81E0] From: Nhcoll-l > On Behalf Of Callomon,Paul Sent: Friday, November 20, 2020 8:00 AM To: Neisskenwirth, Fabian >; 'neumann at snsb.de' >; nhcoll-l at mailman.yale.edu Subject: Re: [Nhcoll-l] Jar liners [External Email] We recently overhauled our 50,000-jar alcohol collection for the first time in 50 years. We found the following things for lids on screw-top jars: * Steel lids are problematic. Ours were painted black on the outside and cadmium-plated inside with solid plastic seals. The seals had almost all held, but the lids themselves had pinpoint rusting from the inside due to condensation. If those pinpoints get through the metal, the lid is more likely to fail. We?ve replaced them all. * PPE lids with either solid PPE disks or F217 liners are both fine. We started using them in the 1980s (PPE disks) and 1990s (F217) and both have lasted well, with a failure rate below 1% * Phenolic lids with coneseal liners ? very good. Bakelite and phenolic lids with food-grade-paper (coated or foil-laminated card) liners ? high failure rate. We replaced them all. * Note that there is a difference between pure phenolic resin and Bakelite. The latter has wood dust mixed with the resin, and always fails over time, often suddenly and completely. You can usually tell the difference by the gloss, color and size; Bakelite is not as black or as glossy as phenolic. If it?s over 50 mm in diameter it?s likely to be Bakelite. * However, as Dirk points out, although phenolic resin is fine with ethanol it can be affected by formaldehyde. We have also found that phenolic will leach dark color into alcohol if it is immersed for more than a year, so it?s clearly not entirely stable to ethanol either. Finally, though they are not available in small sizes the most stable and economical jars in our collection are bale jars with galvanized steel bale clips and either natural rubber, butyl or neoprene gaskets (e. g. ?Ball?-brand jars). These effectively never fail. Paul Callomon MSc Collection Manager, Malacology and General Invertebrates ________________________________ Academy of Natural Sciences of Drexel University, Philadelphia 1900 Benjamin Franklin Parkway, Philadelphia PA 19103-1195, USA prc44 at drexel.edu Tel 215-405-5096 - Fax 215-299-1170 From: Nhcoll-l > On Behalf Of Neisskenwirth, Fabian Sent: Friday, November 20, 2020 4:09 AM To: 'neumann at snsb.de' >; nhcoll-l at mailman.yale.edu Subject: Re: [Nhcoll-l] Jar liners External. Hey there, I totally agree with Dirks statement. Glass lids are much more stable than any other kind of material used in fluid collections. I would like to share my experience with a sort of new jar type from Duran? (former Schott). They have a product line called ?GLS 80? jars. It has a mouth opening of 80 mm, but the size varies from 500ml to 25000 ml. The mouth opening works very well for smaller specimens. The jars are made of borosilicate and sold at an affordable price, because they are made for the pharma industry. This is why they also have ?filling marks?, which esthetically speaking is not so nice, but it still fulfills the purpose of the jar. One of the sales agents of DWK (Duran Group), offered me that at a certain amount of jars, there could be a batch (around 1000 jars) made without ?filling marks?. There is a new type of lid for this jars too, made of Polysulfone (PSU) with a PTFE coated silicone liner. The Duran Group works worldwide, so if you have any questions regarding this contact Eric Lehnen (eric.lehnen at dwk.com). He knows about the use of the jars for collections purpose. This seems to be a very good improvement to move away from poor quality ?sausage jars? with fast degrading lids. I have made a one year aging test with three jars with ethanol 70% mixed with a buffered formaldehyde solution 3,4% (9:1) and have seen no negative reactions on the lids. But this still should be tested more thoroughly. Hope this helps you out! -- Fabian Neisskenwirth Zoologischer Pr?parator MA Student Restaurierung und Konservierung von Kulturgut +49 (0) 201 24681 470 Stiftung Ruhr Museum Fritz-Schupp-Allee 15 45141 Essen www.ruhrmuseum.de Von: Nhcoll-l [mailto:nhcoll-l-bounces at mailman.yale.edu] Im Auftrag von Dirk Neumann Gesendet: Freitag, 20. November 2020 09:10 An: nhcoll-l at mailman.yale.edu Betreff: Re: [Nhcoll-l] Jar liners Hi Tonya & Lennart, I guess there are several layers to unfold here: Foamed liners - like the F217 liners you mention - consist of a foamed cell structure which - if the lid is screwed down tight - is compressed again the neck of the jar. This outs the cells under pressure and closed cells would withstand this tension better then open cell structures. It is hard to tell if the F217 liners you mention has open or closed cells, which gas is used for filling of the foam structure, etc. Even if the F217 liners would have the right composition, right thickness, closed cells - it still a is compressible gasket which has a limited life span. To produce a good closure, you would further need to consider the threads on the jar (continuous or not), the composition of the lid itself (the best liner does not help if the plastic used for the lid itself is of poor quality, etc. Most important seems to me that sizes of such lids are standardised (rather then customised for specific jars), so that they can easily be replaced if they fail. This is one of the huge problems many collections with Copehagen jars now face after plastic lids reached the end of their life span, sized where customised, company went out of production: it is virtually impossible to replace these lids - which causes huge problems in many collections. It seems that F217 and PTFE liners are often used as inlays for Phenolic caps (Bakelite) - which is a no-go in fluid collections because this sort of thermoset plastics is easily degraded by residual formaldehyde escaping from formaldehyde preserved specimens, even if they have been transferred in to alcohol. As said: the best liner is worthless if the plastic lid itself is unsuited. In general, plastic lids are not a good oxygen barrier - this is also worth remembering, especially if specimens inside such jars release a lot of fats or oils. Rather then concentrating on specific lids I would look into jars that are designed for the pharmaceutical sector. Here, both the jar (soda-lime glass) and the lid are expected (and usually tested) to withstand a wide range of chemicals AND to provide a good barrier against oxygen. There are different suppliers of such jars, the disadvantage of the wide mouth jars however is that the largest opening in these jars is 65 mm. So a good option for for 100 - 1000 ml jars, but not for larger jars. St?lzle (who also produce high quality borosilicate stoppered jars) is a possible source for such jars, but there are many others as well: https://pharma.stoelzle.com/en/product_category/weithalsglaser/ So as mostly no clear cut answer, but hopefully one that is useful. All the best Dirk Am 20.11.2020 um 00:29 schrieb Haff, Tonya (NCMI, Crace): Hi all, I know I?ve asked about this before, but may I please clarify again?. Does anyone have preference regarding PTFE (e.g. Teflon, I believe) lid liners vs F217 liners, which are layered polyethylene (as far as I understand). Can anyone give me advice as to what would be better as a lid liner for specimens kept in 70-90% EtOH? Advice very appreciated! Cheers, Tonya --------------------------------------------------------- Dr Tonya Haff Collections Manager Australian National Wildlife Collection National Research Collections Australia, CSIRO Canberra, Australia Phone: (+61) 02 6242 1566 (office) (+61) 0419 569 109 (mobile) _______________________________________________ Nhcoll-l mailing list Nhcoll-l at mailman.yale.edu https://mailman.yale.edu/mailman/listinfo/nhcoll-l _______________________________________________ NHCOLL-L is brought to you by the Society for the Preservation of Natural History Collections (SPNHC), an international society whose mission is to improve the preservation, conservation and management of natural history collections to ensure their continuing value to society. See http://www.spnhc.org for membership information. Advertising on NH-COLL-L is inappropriate. -- [cid:image004.png at 01D6BF45.9E4A81E0] Dirk Neumann Tel: 089 / 8107-111 Fax: 089 / 8107-300 neumann(a)snsb.de Postanschrift: Staatliche Naturwissenschaftliche Sammlungen Bayerns Zoologische Staatssammlung M?nchen Dirk Neumann, Sektion Ichthyologie / DNA-Storage M?nchhausenstr. 21 81247 M?nchen Besuchen Sie unsere Sammlung: http://www.zsm.mwn.de/sektion/ichthyologie-home/ --------- Dirk Neumann Tel: +49-89-8107-111 Fax: +49-89-8107-300 neumann(a)snsb.de postal address: Bavarian Natural History Collections The Bavarian State Collection of Zoology Dirk Neumann, Section Ichthyology / DNA-Storage Muenchhausenstr. 21 81247 Munich (Germany) Visit our section at: http://www.zsm.mwn.de/sektion/ichthyologie-home/ -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... 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Date: Fri, 20 Nov 2020 20:21:15 +0000 Subject: [Nhcoll-l] Contract Opportunity: Project Management and Special Events support at NMNH Smithsonian Institution Message-ID: The Office of the Associate Director for Science at the National Museum Natural History, Smithsonian Institution is requesting quotes for professional, technical, non-personal services beginning on January 4, 2021. The contractor shall provide administrative and project management support for the inclusive STEM Staircase 'big idea' and task forces on diversity and culture. The contractor shall also provide event coordination and general administrative support for science. Specific Tasks shall include: * Compiling, organizing, tracking, and maintaining files * Drafting manuals, PowerPoints, documents, event marketing materials, and correspondence for science management and leadership review * Tracking approval process of documents * Organizing and compiling strategic information and details in spreadsheets and charts * Gathering information and compiling reports * Developing and maintaining a system to gather reporting information from Science * Other general administrative and project management tasks as required to support the above ADS projects, events, and Science reporting process. Quotes are due to Katharine Barker (barkerk at si.edu) by 8:00AM Monday, December 7, 2020. Regards, Katharine B. Barker Program Manager, Global Genome Initiative and Global Genome Biodiversity Network w 202.633.2460 c 202.286.1390 e barkerk at si.edu SMITHSONIAN INSTITUTION NATIONAL MUSEUM OF NATURAL HISTORY Facebook | Twitter | Instagram -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: Request for Quotes - ADS Project Manager.pdf Type: application/pdf Size: 730519 bytes Desc: Request for Quotes - ADS Project Manager.pdf URL: From abentley at ku.edu Mon Nov 23 13:16:16 2020 From: abentley at ku.edu (Bentley, Andrew Charles) Date: Mon, 23 Nov 2020 18:16:16 +0000 Subject: [Nhcoll-l] FW: Science Policy News from AIBS In-Reply-To: References: Message-ID: Email not displaying correctly? View it in your browser. AIBS Public Policy Report AIBS Public Policy Report, Volume 21, Issue 24, November 23, 2020 * AIBS Supports Legislation to Reverse Executive Order Limiting Civil Service Protections * Senate Releases All FY 2021 Spending Bills, Omnibus Negotiations Begin * Trump Administration Removes Head of U.S. Climate Program * Lawmakers Raise Questions about New NIST Appointee * Call for Applications: 2021 Emerging Public Policy Leadership Award * Webinar Series: Resources for Natural History Collections in a New Virtual World * Bring the Enabling Interdisciplinary and Team Science Course to Your Institution * Short Takes * Input Requested on Key Science Leadership Roles in Government * Next Meeting of National Museum and Library Services Board * Save the Date: The Gulf of Mexico Conference 2021 * Submit Ideas, Nominations for Ocean Decade U.S. * Experts Sought: Environmental Health to Inform Infectious Disease Response * From the Federal Register ________________________________ The AIBS Public Policy Report is distributed broadly by email every two weeks. Any interested party may self-subscribe to receive these free reports by email. With proper attribution to AIBS, all material from these reports may be reproduced or forwarded. AIBS staff appreciates receiving copies of materials used. If you have questions, comments, or suggestions, please contact the AIBS Public Policy Manager, Jyotsna Pandey, at 202-628-1500 x 225. ________________________________ AIBS Supports Legislation to Reverse Executive Order Limiting Civil Service Protections The American Institute of Biological Sciences (AIBS) has joined 15 other scientific organizations in thanking House Majority Leader Steny Hoyer (D-MD), Representative Gerald Connolly (D-VA), and Representative Carolyn Maloney (D-NY) for introducing the ?Saving the Civil Service Act? (H.R. 8687) to reverse the October 21, 2020 Executive Order on Creating Schedule F in the Excepted Service. The Order would create a new classification of ?Schedule F? employees serving in ?confidential, policy-determining, policy-making, or policy-advocating positions? and would restrict protections for certain civil servants, making it easier for the federal government to fire career staff. ?While the White House has said that this directive will give federal agencies more flexibility to remove ?Schedule? employees from their roles for poor performance, we are deeply concerned that the Executive Order could result in career professionals?including critical scientists and public health professionals?being stripped from their positions for political reasons, resulting in the loss of critical institutional knowledge and expertise,? the groups note. ?The new Executive Order has the potential to shift the workforce from one that is based on merit to one that is focused, above all, on loyalty to an administration. Such a shift would have real-world implications for America?s leadership in research and innovation and for Americans? collective health, well-being, and security.? Read the letter. Senate Releases All FY 2021 Spending Bills, Omnibus Negotiations Begin The Senate Committee on Appropriations released all twelve fiscal year (FY) 2021 appropriation bills on November 10, 2020. The bills will forego Committee mark ups and debate within the Senate and instead serve as a starting point for bicameral negotiations on an omnibus spending agreement. The House passed ten out of twelve appropriation bills earlier this summer. President Trump proposed cutting the budget for the National Science Foundation (NSF) by 6 percent in FY 2021. However, both the House and Senate bills would provide increases to the agency?s budget. NSF would receive $8.5 billion in funding under the Senate Commerce, Justice, and Science (CJS) spending bill, a $200 million increase from FY 2020. NSF?s core basic research portfolio would receive $6.9 billion, an increase of $170 million. Under the House bill, NSF funding would grow by $270 million, and its research account would receive a boost of $230 million. While the House CJS spending bill would fund the National Aeronautics and Space Administration at a flat budget of $22.63 billion, the Senate proposes increasing its funding to $23.5 billion (+$866 million). Under the Senate bill, the National Institute of Standards and Technology would receive $1.05 billion, an increase of $16 million from FY 2020, and the National Oceanic and Atmospheric Administration (NOAA) would receive an additional $51 million for an overall budget of $5.40 billion in FY 2021. The Senate Interior-Environment bill includes $35.8 billion in discretionary spending, $1 billion below the amount allocated in the House bill. The Department of the Interior would receive $13.65 billion overall, $286 million above the FY 2020 enacted level and $18 million less than the House?s allocation. * Budget for the U.S. Geological Survey (USGS) would decrease by $5 million to $1.27 billion under the Senate bill. The House bill would boost funding for the Survey by 2 percent. * The Ecosystems Mission Area within USGS would receive $258 million, including $25 million for the Environmental Health Program, which the President had proposed eliminating. House Appropriators also rejected eliminating the Environmental Health Program and approved a flat budget of $23.5 million for it earlier this year. * The U.S. Fish and Wildlife Service would receive $1.55 billion in FY 2021, $93.5 million less than FY 2020 and $29 million below the House bill. * The National Park Service would be funded at $3.12 billion, $255 million below FY 2020 and $102 million below the level approved by the House. * The Senate bill would allocate $1.3 billion to the Bureau of Land Management, $28 million below FY 2020 and in line with the House bill. * The Smithsonian Institution would receive $982 million under the Senate plan, a decrease of $65 million from FY 2020. The House approved a budget increase of 1 percent for the Smithsonian Institution. Both Senate and House Appropriators have rejected the President?s proposal to slash the budget for the Environmental Protection Agency (EPA) by 26 percent. The Senate Interior-Environment bill would provide a small increase of $28 million to the regulatory agency. The House version of the bill would provide an overall increase of $318 million, or 3.5 percent. The Science and Technology account within the EPA would receive $718 million under the Senate bill, $1.2 million above FY 2020 and $27 million below the House bill. Under the Senate Labor-Health and Human Services (LHHS) appropriations bill, discretionary spending would increase by $1.43 billion for a total of $184.5 billion. The Senate plan does not include any emergency funding to respond to the COVID-19 pandemic. The National Institutes of Health (NIH) budget would be augmented by 4.8 percent to $43.7 billion under the Senate proposal. The House bill, on the other hand, would provide $47 billion (+$5.5 billion) for NIH, including $5 billion in emergency appropriations to improve capacity at research institutions. Additionally, the Senate LHHS bill would allocate $4.2 billion (+$161 million) for public health preparedness and $7.88 billion (+$130 million) for the Centers for Disease Control and Prevention (CDC). The Institute of Museum and Library services would receive $257 million, an increase of $5 million over FY 2020. The Senate Energy and Water Development spending bill would increase funding for the Department of Energy Office of Science by $26 million for a total of $7.026 billion. The House bill would boost the office?s budget by $50 million. The Senate bill would also reject the President?s ?short-sighted proposal to terminate the Advanced Research Project Agency?Energy (ARPA-E)? and instead increase investment in the program by $5 million for a total of $430 million in FY 2021. The Senate?s spending bill for Agriculture, Rural Development, Food and Drug Administration, and Related Agencies provides more than $3.3 billion for agricultural research programs, including the Agricultural Research Service (ARS) and the National Institute of Food and Agriculture (NIFA). ARS would receive $1.51 billion in FY 2021, a decrease of $97 million or 6 percent compared to FY 2020. The House bill would shrink the budget for ARS by 10 percent. NIFA, which partners with academic institutions to conduct research, education, and extension activities, would receive $1.54 billion (+$12 million) under the Senate plan and $1.57 billion (+$48 million) under the House plan. Both chambers would augment funding for the Agriculture and Food Research Initiative by $10 million to $435 million. Congress passed a continuing resolution in September to keep the government operational in FY 2021, which started on October 1. To avoid a government shutdown, all twelve appropriations bills must be passed by the House and Senate and signed by the President before the stopgap funding expires on December 11. Negotiations between Senate and House Appropriators on an omnibus funding package incorporating all twelve appropriation bills are currently ongoing. Senate Majority Leader Mitch McConnell (R-KY) has indicated that he would like to pass both FY 2021 appropriations and a ?highly targeted? pandemic relief measure before the year ends. Trump Administration Removes Head of U.S. Climate Program On November 6, 2020, the White House abruptly removed Michael Kuperberg from his position as Executive Director of the U.S. Global Change Research Program (USGCRP), which oversees the production of the National Climate Assessment (NCA)?a scientific report on climate change that is congressionally mandated to be prepared every four years by scientists from 13 federal agencies. Kuperberg, a Department of Energy (DOE) employee who had led the USGCRP for more than five years, had been working to advance the fifth and latest installment of the NCA after a months-long delay from the White House. According to E&E News, Don Wuebbles, a climate scientist at the University of Illinois and co-lead author of the first volume of the fourth climate report, said that Kuperberg has been transferred back to DOE. The Trump Administration announced that David Legates, a climate change denier who was recently appointed as the Deputy Assistant Secretary of Commerce for Environmental Observation and Prediction at NOAA, will replace Kuperberg as the Head of USGCRP. Legates, a professor of geography from the University of Delaware, is affiliated with the Heartland Institute?a think tank funded partially by the fossil fuel industry. He has long questioned that human activity is causing global warming. Legates will head the development of the NCA for the next two months and will have influence over the crucial step of contracting scientists to write the report. Scientists are concerned that those contracts could be structured to keep researchers who reject climate science in place after President Trump leaves office in January. Lawmakers Raise Questions about New NIST Appointee House Science Committee Chairwoman Eddie Bernice Johnson (D-TX) and Research and Technology Subcommittee Chairwoman Haley Stevens (D-MI) have criticized the appointment of Dr. Jason Richwine, an independent public policy analyst, to a new senior role at the National Institute of Standards and Technology (NIST). In a November 17, 2020 letter to Commerce Secretary Wilbur Ross, the lawmakers questioned the creation of a new senior-level position within the Department of Commerce, namely the Deputy Undersecretary of Commerce for Standards and Technology, and the appointment of Dr. Richwine to that role without providing notice to congressional committees. The lawmakers also raised concerns about Dr. Richwine?s ?anachronistic IQ-based ranking of races in order to support his anti-immigration beliefs, leaning on debunked pseudoscience that has been used for centuries to justify colonialism, slavery, and segregation.? The letter cites blog posts he has written for a white supremacist website, ?arguing that Hispanic Americans will be more prone to criminality in the future.? The lawmakers assert that Richwine holds ?beliefs and actions [that] are plainly disqualifying from federal service? and argue that his ?educational and professional background are plainly inadequate for carrying out the responsibilities of senior leadership at NIST.? The letter notes that Richwine has ?no apparent applied experience in the physical sciences, engineering, government, or public administration and has never authored or contributed to a peer-reviewed publication.? Being a political appointee, it is unlikely that Richwine will continue in his role under a future Biden Administration. However, Science Insider reports that scientists are concerned about a recent Administrative Order signed by Secretary Ross, which designates Richwine?s position as the successor to the NIST Director. Under the previous policy, the Associate Director for Laboratory Operations, a career official and not a political appointee, would take over NIST leadership if the Director left or was removed. Johnson and Stevens have requested answers within two weeks to several questions in their letter to Ross, including: ?Did the Department conduct any analysis to support the requirement for a new Deputy Undersecretary position prior to establishing it?? Call for Applications: 2021 Emerging Public Policy Leadership Award Are you a science graduate student looking to make a difference in science policy and funding? The American Institute of Biological Sciences (AIBS) is now accepting applications for the 2021 AIBS Emerging Public Policy Leadership Award. This award recognizes graduate students in the biological sciences who are demonstrating an interest and aptitude for working at the intersection of science and policy. Recipients of the AIBS Emerging Public Policy Leadership Award receive: * A trip to Washington, DC, to participate in the AIBS Congressional Visits Day, an annual event where scientists meet with lawmakers to advocate for federal investment in the biological sciences, with a primary focus on the National Science Foundation. Domestic travel and hotel expenses are paid for the winners. As a result of the COVID-19 pandemic, winners will participate in a virtual advocacy event in the spring of 2021 (likely in April) and will also have the opportunity to attend a future in-person event. * Online policy and communications training, including information on the legislative process and trends in federal science funding, and how to engage with policymakers and the news media. * Meetings with congressional policymakers to discuss the importance of federal investment in the biological sciences. * A one-year subscription to the journal BioScience and a copy of ?Communicating Science: A Primer for Working with the Media.? The 2021 award is open to U.S. citizens and U.S. permanent residents enrolled in a graduate degree program in the biological sciences, science education, or a closely allied field. Applicants should have a demonstrated interest in and commitment to science policy and/or science education policy. Prior recipients, including Honorable Mentions, are not eligible for the award. Applications are due by 05:00 PM Eastern Time on January 15, 2021. The application guidelines can be downloaded at https://www.aibs.org/news/2020/201111-call-for-eppla-2021.html#subheader. Webinar Series: Resources for Natural History Collections in a New Virtual World Recognizing the rapid changes happening within museum communities and the efforts being made throughout the community to adapt to these changes, iDigBio is organizing a webinar series, entitled Adapting to COVID-19: Resources for Natural History Collections in a New Virtual World. The webinar series aims to help provide insight into how different groups and institutions are adapting to life in a quickly evolving world. AIBS, the Society for the Preservation of Natural History Collections (SPNHC), and the Natural Science Collections Alliance contributed to the planning of these programs. The next webinar will be held on December 8 from 2:00 - 3:00 PM ET. All webinars will be recorded and held in Zoom. December 8: Built-in Flexibility: Lessons learned engaging your community virtually This webinar will focus on designing engaging and accessible online events that build lasting community. We will explore the 2020 Biology and Math Educators (BIOME) Institute organized by BioQUEST and QUBES as a case study. We will share lessons learned and practices that can be applied to online professional development and educational events. Topics include: participant engagement, asynchronous and synchronous community building, access, universal design, and online professional development. Speakers: Andrew Hasley and Hayley Orndorf, BioQUEST Zoom link: https://ufl.zoom.us/j/99571640979?pwd=V0VwbDBySEtBYUptNUZ2L0RQNGh0UT09 Visit the webinar series page for more information: https://www.idigbio.org/content/webinar-series-adapting-covid-resources-natural-history-collections-new-virtual-world Bring the Enabling Interdisciplinary and Team Science Course to Your Institution Reports abound from professional societies, the Academies, government agencies, and researchers calling attention to the fact that science is increasingly an interdisciplinary, transdisciplinary, inter-institutional, and international endeavor. In short, science has become a ?team sport.? Team science is increasingly common in the 21st century to develop convergent solutions to complex problems. Collaboration is no longer limited to sharing ideas with the biologist in the lab next door. The questions confronting science often require teams that may include a mix of computer and information scientists, physical and social scientists, mathematicians, ethicists, policy and management experts, as well as community stakeholders and citizen scientists. Adding to this complexity, teams span programs within organizations, cross organization boundaries to form institutional consortia, and often include international partners. There is a real and present need to better prepare scientists for success in this new collaborative environment. The American Institute of Biological Sciences (AIBS) has responded to this call with a program for scientists, educators, and individuals who work with or participate in scientific teams. This intensive, two-day, interactive, professional development course was developed by scientists and other experts focusing on collaboration and teamwork to provide participants with the knowledge and skills required to become productive and effective members of scientific teams. Nothing teaches collaboration like practicing collaboration. This is not a course that asks you to learn in isolation. It is a microcosm of scientific collaboration, with extensive hands-on learning as part of a scientific team, with scientific case studies and examples. The Enabling Interdisciplinary and Team Science course is designed for anyone involved in collaborative scientific endeavors. Team leaders will find the course especially helpful. Because participants will work on ?real-world? team science concerns, we encourage multiple members of a team to attend together. As a result of the COVID-19 pandemic, we now offer an online version of the workshop. We can also customize the course and bring it to your university, department, lab, or research team. If you are interested in organizing a workshop for your institution, please contact Scott Glisson at sglisson at aibs.org for more information. Additional information, including a course outline, is available at https://www.aibs.org/news/2020/200420-team-science.html. Short Takes * The Day One Project, an initiative that aims to articulate and advance priorities for the next Administration, is requesting input from the scientific community to identify the top 100 leadership roles across the Federal Government where scientific and technical (S&T) expertise is most critical. The goal is to ensure that all the important S&T leadership roles across the federal government are identified, tracked and filled as quickly as possible in the next presidential term. Deadline to provide input is December 1, 2020. Learn more. * The 42nd meeting of the National Museum and Library Services Board will be held online on December 10, 2020, from 11:00 AM Eastern Time onwards. The panel advises the Director of the Institute of Museum and Library Services (IMLS) on duties, powers, and authority of IMLS relating to museum, library, and information services, as well as coordination of activities for the improvement of these services. Details about the meeting can be found here: https://www.govinfo.gov/content/pkg/FR-2020-11-12/html/2020-25025.htm * A virtual ?preview? of the Gulf of Mexico Conference (GoMCon), which combines the annual Gulf of Mexico Alliance (GOMA) All Hands Meeting, the annual Gulf of Mexico Oil Spill and Ecosystems Science (GoMOSES) Conference, and the triannual State of the Gulf Summit, will be held on April 14th, 2021. The virtual GoMCon preview emphasizes the intersection of scientific research and the management of Gulf Coast human and natural systems, and will serve as an introduction to the 2022 in-person conference. Learn more and register at https://gomcon2021.dryfta.com/. * The UN Decade of Ocean Science for Sustainable Development is a global effort from 2021-2030 focused on ensuring the sustainable use of ocean resources and long-term ocean health. The U.S. National Committee for the Ocean Decade is inviting nominations for early career natural scientists, social scientists, engineers, resource managers, and policy specialists to join this effort. Transformative research ideas known as ?Ocean-Shots? to spark potentially disruptive advances in ocean science for sustainable development are also requested. Deadline to submit ideas and nominations is December 1, 2020. The National Academies will also hold a kick off meeting for the Ocean Decade U.S. on January 13-14, 2021. * The National Academies? Standing Committee on the Use of Emerging Science for Environmental Health Decisions is seeking experts to plan a workshop to explore how environmental exposure assessment and modeling could help inform real-time public health decision making about infectious disease outbreaks, epidemics, and pandemics. The workshop will be held in June 2021. Deadline to submit nominations is December 7, 2020 at 11:59 p.m. Eastern Time. Learn more. From the Federal Register The following items appeared in the Federal Register from November 9 to 20, 2020. Week Ending November 20, 2020 Agriculture * Request for Nominations of Members for the Citrus Disease Subcommittee Commerce * Atlantic Highly Migratory Species; Meeting of the Atlantic Highly Migratory Species Advisory Panel Environmental Protection Agency * Notice of Meeting of the EPA Children's Health Protection Advisory Committee (CHPAC) Health and Human Services * Meeting of the National Vaccine Advisory Committee * Meeting of the Tick-Borne Disease Working Group Interior * Notice of Teleconference Meeting of the Exxon Valdez Oil Spill Public Advisory Committee * Request for Nominations for the National Park System Advisory Board National Science Foundation * STEM Education Advisory Panel; Notice of Meeting Week Ending November 13, 2020 Agriculture * Information Collection: Collaborative Forest Landscape Restoration Program Commerce * Solicitation of Applications for the Ocean Exploration Advisory Board (OEAB) * Atlantic Highly Migratory Species; Advisory Panel Environmental Protection Agency * Meeting of the National Drinking Water Advisory Council Health and Human Services * Advisory Council on Alzheimer's Research, Care, and Services; Meeting * Board of Scientific Counselors, Deputy Director for Infectious Diseases (BSC, DDID) Institute of Museum and Library Services * 42nd Meeting of the National Museum and Library Services Board National Aeronautics and Space Administration * NASA Advisory Council; Science Committee; Meeting * Name of Information Collection: NASA STEM Gateway Performance Management and Third-Party Experience ________________________________ * Give your society or organization a voice in public policy. Join AIBS today. * Become an advocate for science, visit the AIBS Legislative Action Center. The American Institute of Biological Sciences is a non-profit 501(c)3 public charity organization that advances the biological sciences for the benefit of science and society. AIBS works with like-minded organizations, funding agencies, and political entities to promote the use of science to inform decision-making. The organization does this by providing peer-reviewed or vetted information about the biology field and profession and by catalyzing action through building the capacity and the leadership of the community to address matters of common concern. Founded in 1947 as a part of the National Academy of Sciences, AIBS became an independent, member-governed organization in the 1950s. Today, AIBS has over 100 member organizations and has a Public Policy Office in Washington, DC. Its staff members work to achieve its mission by publishing the peer-reviewed journal BioScience, by providing scientific peer-review and advisory services to government agencies and other clients, and by collaborating with scientific organizations to advance public policy, education, and the public understanding of science. Website: www.aibs.org. You received this message because you or your organization have interacted with one of our programs or initiatives. Our mailing address is: American Institute of Biological Science 950 Herndon Parkway Suite 450 Herndon, VA 20170 Copyright (C) 2020 American Institute of Biological Sciences All rights reserved. -------------- next part -------------- An HTML attachment was scrubbed... URL: From conservation at natsca.org Mon Nov 23 16:39:33 2020 From: conservation at natsca.org (NatSCA Conservation) Date: Mon, 23 Nov 2020 21:39:33 +0000 Subject: [Nhcoll-l] Call for submissions - NatSCA Conservation Twitter Conference Message-ID: We are welcoming abstracts for our NatSCA Conservation twitter conference to be held in January 2021. Deadline for submissions is 30th November. The subject of each submission can be as diverse as the field of natural history itself, from storage projects, preventative work, treatments, new innovations, or to how recent world health events are shaping the way we work with collections. Join us for this great opportunity to explore conservation work relating to the range of natural materials including bone, taxidermy, fluid preserved collections, geology, botany and entomology. Find out more, including the abstract submission form on the NatSCA website here http://www.natsca.org/conservation-2021 Please send any questions off-list to this email (conservation at natsca.org) The NatSCA Conservation Group look forward to hearing from you *Lucie Mascord ACR* *Committee Conservation Representative* -------------- next part -------------- An HTML attachment was scrubbed... URL: From Tonya.Haff at csiro.au Tue Nov 24 14:31:22 2020 From: Tonya.Haff at csiro.au (Haff, Tonya (NCMI, Crace)) Date: Tue, 24 Nov 2020 19:31:22 +0000 Subject: [Nhcoll-l] Jar liners In-Reply-To: <9290540F-C3D7-4D4B-A2E9-679C55610A05@ku.edu> References: <3ecde4298f344f7db2e7ba29824da34b@SRVBK13DB02.stadt.essen.de> , <9290540F-C3D7-4D4B-A2E9-679C55610A05@ku.edu> Message-ID: Thanks everyone for your very thoughtful and detailed replies...such a big topic, with so many variables! I totally agree with some of you that testing should take place, as well, to help choose the best option for us, and then there are limitations such as fund and availability. We are in a tight spot right now, where I have funding to buy a lot of new jars, but I am having trouble finding the right ones, as we can no longer find the same jars we use as our standard size....which as you know leads to all sorts of downstream challenges. I know some of you suggested specific suppliers and I will chase those up, and also the bunna-n gaskets. Thanks again for all the food for thought. Cheers, Tonya ________________________________ From: Nhcoll-l on behalf of Bentley, Andrew Charles Sent: Saturday, 21 November 2020 6:01 AM To: Lazo-Wasem, Eric ; Rob Robins ; Callomon, Paul ; Neisskenwirth, Fabian ; 'neumann at snsb.de' ; nhcoll-l at mailman.yale.edu Subject: Re: [Nhcoll-l] Jar liners ?Eric I would contact O?Berk about replacement liners. They have been very good with customer service in my opinion. Andy A : A : A : }<(((_?>.,.,.,.}<(((_?>.,.,.,.}<)))_?> V V V Andy Bentley Ichthyology Collection Manager University of Kansas Biodiversity Institute Dyche Hall 1345 Jayhawk Boulevard Lawrence, KS, 66045-7561 USA Tel: (785) 864-3863 Fax: (785) 864-5335 Email: abentley at ku.edu http://ichthyology.biodiversity.ku.edu A : A : A : }<(((_?>.,.,.,.}<(((_?>.,.,.,.}<)))_?> V V V From: "eric.lazo-wasem at yale.edu" Date: Friday, November 20, 2020 at 1:42 PM To: Andrew Bentley , Rob Robins , "Callomon,Paul" , "Neisskenwirth, Fabian" , "'neumann at snsb.de'" , "nhcoll-l at mailman.yale.edu" Subject: RE: [Nhcoll-l] Jar liners Agreed Andy. When we received an NSF grant to move and upgrade, we went with O?Berk. I am not promoting them, but simply saying that is what we use and it has been very successful. One thing we do, which is embarassingly wasteful, is not reuse a cap after hit has been repeatedly opened and closed and the liner appears quite compressed to limit. I guess I should investigate replacement liners, so as not to toss the whole lid. This is not a wholesale activity, I suspect we spend less than $100 a year doing this and I see it as good insurance leveraged against the high cost of losing a specimen. If anyone has investigated replacing the liners on the PPE lids, I would like to hear their experience. It seems it would be easy given there is just a spot of ?glue? holding the liner in place. Eric A. Lazo-Wasem Senior Collections Manager Peabody Museum of Natural History Yale University 170 Whitney Ave. New Haven, CT 06520 203 432-3784 From: Nhcoll-l On Behalf Of Bentley, Andrew Charles Sent: Friday, November 20, 2020 11:22 AM To: Rob Robins ; Callomon,Paul ; Neisskenwirth, Fabian ; 'neumann at snsb.de' ; nhcoll-l at mailman.yale.edu Subject: Re: [Nhcoll-l] Jar liners We too have been replacing old orange gaskets with the new buna-n gaskets over time and these have proved to be far superior. We do also have a policy of changing all old bail-top jars to screw tops from O?Berk whenever a jar needs attention. We do not have the funds to wholesale replace all of them but hopefully over time will do so. We have seen very few problems with the jars and lids from O?Berk besides a couple of bad batches of lids that have failed more often than others and the over or under tightening problems mentioned already. These jars are cost effective and curation friendly and come in a wide variety of sizes, shapes and mouth opening sizes. Andy A : A : A : }<(((_?>.,.,.,.}<(((_?>.,.,.,.}<)))_?> V V V Andy Bentley Ichthyology Collection Manager University of Kansas Biodiversity Institute Dyche Hall 1345 Jayhawk Boulevard Lawrence, KS, 66045-7561 USA Tel: (785) 864-3863 Fax: (785) 864-5335 Email: abentley at ku.edu http://ichthyology.biodiversity.ku.edu A : A : A : }<(((_?>.,.,.,.}<(((_?>.,.,.,.}<)))_?> V V V From: Nhcoll-l > on behalf of Rob Robins > Date: Friday, November 20, 2020 at 8:55 AM To: "Callomon,Paul" >, "Neisskenwirth, Fabian" >, "'neumann at snsb.de'" >, "nhcoll-l at mailman.yale.edu" > Subject: Re: [Nhcoll-l] Jar liners Hi Folks, Would like to contribute an observation on the bail top jars ? I agree that the seals are excellent at resisting evaporation, with a major caveat: the gaskets deteriorate (at least gaskets of the type that came to us via a large relinquished collection in the 1980s). See image 1. Nearly all bail tops in our care require a levering tool to break the seal between glass and gasket (>90%), such as a stout short-bladed paint scraper. Using the tool safely takes knowhow and dexterity (brute force will work but with the attendant risk of impaling one?s hand with the tool ? and thus is strongly cautioned against). See image 2. Following jar opening, old gaskets on these old bail tops at UF are unredeemable (99% of the time). Exposed parts of the gasket are usually brittle and flake away, while the gasket that comprised the seal that lasted decades may be fully or partly molded to the jar ? totally affixed. This latter circumstance renders the jar worthless, as no replacement gasket can be placed upon such an irregular surface. See images 3 and 4. For these reasons and others, whenever we work with bail top specimen lots, we replace the jars with screw top containers -- usually at a space savings (note Paul?s comment about a limited offering of rather large sizes). If the above situation is only avoided with regular replacement of gaskets ? that needs to be considered as ongoing maintenance costs associated with the use of this jar type. But perhaps local conditions have not always been ideal and thus the gaskets degraded more rapidly than they do under ideal conditions. If so, that also should be considered by those collections whose facilities can?t always meet optimal conditions. It could also be our gaskets are of an inferior material, since improved upon or replaced by manufacturers of these containers systems. I am unclear on these points and look forward to learning more. Best wishes, Rob Robert H. Robins Collection Manager Division of Ichthyology [FLMNH Fishes logo email small] Florida Museum of Natural History 1659 Museum Rd. Gainesville, FL 32611-7800 Office: (352) 273-1957 rhrobins at flmnh.ufl.edu Search the Collection: http://specifyportal.flmnh.ufl.edu/fishes/ Search samples suitable for dna analysis: https://www.floridamuseum.ufl.edu/grr/holdings/ [cid:image002.jpg at 01D6BF45.9E4A81E0] [cid:image003.jpg at 01D6BF45.9E4A81E0] From: Nhcoll-l > On Behalf Of Callomon,Paul Sent: Friday, November 20, 2020 8:00 AM To: Neisskenwirth, Fabian >; 'neumann at snsb.de' >; nhcoll-l at mailman.yale.edu Subject: Re: [Nhcoll-l] Jar liners [External Email] We recently overhauled our 50,000-jar alcohol collection for the first time in 50 years. We found the following things for lids on screw-top jars: * Steel lids are problematic. Ours were painted black on the outside and cadmium-plated inside with solid plastic seals. The seals had almost all held, but the lids themselves had pinpoint rusting from the inside due to condensation. If those pinpoints get through the metal, the lid is more likely to fail. We?ve replaced them all. * PPE lids with either solid PPE disks or F217 liners are both fine. We started using them in the 1980s (PPE disks) and 1990s (F217) and both have lasted well, with a failure rate below 1% * Phenolic lids with coneseal liners ? very good. Bakelite and phenolic lids with food-grade-paper (coated or foil-laminated card) liners ? high failure rate. We replaced them all. * Note that there is a difference between pure phenolic resin and Bakelite. The latter has wood dust mixed with the resin, and always fails over time, often suddenly and completely. You can usually tell the difference by the gloss, color and size; Bakelite is not as black or as glossy as phenolic. If it?s over 50 mm in diameter it?s likely to be Bakelite. * However, as Dirk points out, although phenolic resin is fine with ethanol it can be affected by formaldehyde. We have also found that phenolic will leach dark color into alcohol if it is immersed for more than a year, so it?s clearly not entirely stable to ethanol either. Finally, though they are not available in small sizes the most stable and economical jars in our collection are bale jars with galvanized steel bale clips and either natural rubber, butyl or neoprene gaskets (e. g. ?Ball?-brand jars). These effectively never fail. Paul Callomon MSc Collection Manager, Malacology and General Invertebrates ________________________________ Academy of Natural Sciences of Drexel University, Philadelphia 1900 Benjamin Franklin Parkway, Philadelphia PA 19103-1195, USA prc44 at drexel.edu Tel 215-405-5096 - Fax 215-299-1170 From: Nhcoll-l > On Behalf Of Neisskenwirth, Fabian Sent: Friday, November 20, 2020 4:09 AM To: 'neumann at snsb.de' >; nhcoll-l at mailman.yale.edu Subject: Re: [Nhcoll-l] Jar liners External. Hey there, I totally agree with Dirks statement. Glass lids are much more stable than any other kind of material used in fluid collections. I would like to share my experience with a sort of new jar type from Duran? (former Schott). They have a product line called ?GLS 80? jars. It has a mouth opening of 80 mm, but the size varies from 500ml to 25000 ml. The mouth opening works very well for smaller specimens. The jars are made of borosilicate and sold at an affordable price, because they are made for the pharma industry. This is why they also have ?filling marks?, which esthetically speaking is not so nice, but it still fulfills the purpose of the jar. One of the sales agents of DWK (Duran Group), offered me that at a certain amount of jars, there could be a batch (around 1000 jars) made without ?filling marks?. There is a new type of lid for this jars too, made of Polysulfone (PSU) with a PTFE coated silicone liner. The Duran Group works worldwide, so if you have any questions regarding this contact Eric Lehnen (eric.lehnen at dwk.com). He knows about the use of the jars for collections purpose. This seems to be a very good improvement to move away from poor quality ?sausage jars? with fast degrading lids. I have made a one year aging test with three jars with ethanol 70% mixed with a buffered formaldehyde solution 3,4% (9:1) and have seen no negative reactions on the lids. But this still should be tested more thoroughly. Hope this helps you out! -- Fabian Neisskenwirth Zoologischer Pr?parator MA Student Restaurierung und Konservierung von Kulturgut +49 (0) 201 24681 470 Stiftung Ruhr Museum Fritz-Schupp-Allee 15 45141 Essen www.ruhrmuseum.de Von: Nhcoll-l [mailto:nhcoll-l-bounces at mailman.yale.edu] Im Auftrag von Dirk Neumann Gesendet: Freitag, 20. November 2020 09:10 An: nhcoll-l at mailman.yale.edu Betreff: Re: [Nhcoll-l] Jar liners Hi Tonya & Lennart, I guess there are several layers to unfold here: Foamed liners - like the F217 liners you mention - consist of a foamed cell structure which - if the lid is screwed down tight - is compressed again the neck of the jar. This outs the cells under pressure and closed cells would withstand this tension better then open cell structures. It is hard to tell if the F217 liners you mention has open or closed cells, which gas is used for filling of the foam structure, etc. Even if the F217 liners would have the right composition, right thickness, closed cells - it still a is compressible gasket which has a limited life span. To produce a good closure, you would further need to consider the threads on the jar (continuous or not), the composition of the lid itself (the best liner does not help if the plastic used for the lid itself is of poor quality, etc. Most important seems to me that sizes of such lids are standardised (rather then customised for specific jars), so that they can easily be replaced if they fail. This is one of the huge problems many collections with Copehagen jars now face after plastic lids reached the end of their life span, sized where customised, company went out of production: it is virtually impossible to replace these lids - which causes huge problems in many collections. It seems that F217 and PTFE liners are often used as inlays for Phenolic caps (Bakelite) - which is a no-go in fluid collections because this sort of thermoset plastics is easily degraded by residual formaldehyde escaping from formaldehyde preserved specimens, even if they have been transferred in to alcohol. As said: the best liner is worthless if the plastic lid itself is unsuited. In general, plastic lids are not a good oxygen barrier - this is also worth remembering, especially if specimens inside such jars release a lot of fats or oils. Rather then concentrating on specific lids I would look into jars that are designed for the pharmaceutical sector. Here, both the jar (soda-lime glass) and the lid are expected (and usually tested) to withstand a wide range of chemicals AND to provide a good barrier against oxygen. There are different suppliers of such jars, the disadvantage of the wide mouth jars however is that the largest opening in these jars is 65 mm. So a good option for for 100 - 1000 ml jars, but not for larger jars. St?lzle (who also produce high quality borosilicate stoppered jars) is a possible source for such jars, but there are many others as well: https://pharma.stoelzle.com/en/product_category/weithalsglaser/ So as mostly no clear cut answer, but hopefully one that is useful. All the best Dirk Am 20.11.2020 um 00:29 schrieb Haff, Tonya (NCMI, Crace): Hi all, I know I?ve asked about this before, but may I please clarify again?. Does anyone have preference regarding PTFE (e.g. Teflon, I believe) lid liners vs F217 liners, which are layered polyethylene (as far as I understand). Can anyone give me advice as to what would be better as a lid liner for specimens kept in 70-90% EtOH? Advice very appreciated! Cheers, Tonya --------------------------------------------------------- Dr Tonya Haff Collections Manager Australian National Wildlife Collection National Research Collections Australia, CSIRO Canberra, Australia Phone: (+61) 02 6242 1566 (office) (+61) 0419 569 109 (mobile) _______________________________________________ Nhcoll-l mailing list Nhcoll-l at mailman.yale.edu https://mailman.yale.edu/mailman/listinfo/nhcoll-l _______________________________________________ NHCOLL-L is brought to you by the Society for the Preservation of Natural History Collections (SPNHC), an international society whose mission is to improve the preservation, conservation and management of natural history collections to ensure their continuing value to society. See http://www.spnhc.org for membership information. Advertising on NH-COLL-L is inappropriate. -- [cid:image004.png at 01D6BF45.9E4A81E0] Dirk Neumann Tel: 089 / 8107-111 Fax: 089 / 8107-300 neumann(a)snsb.de Postanschrift: Staatliche Naturwissenschaftliche Sammlungen Bayerns Zoologische Staatssammlung M?nchen Dirk Neumann, Sektion Ichthyologie / DNA-Storage M?nchhausenstr. 21 81247 M?nchen Besuchen Sie unsere Sammlung: http://www.zsm.mwn.de/sektion/ichthyologie-home/ --------- Dirk Neumann Tel: +49-89-8107-111 Fax: +49-89-8107-300 neumann(a)snsb.de postal address: Bavarian Natural History Collections The Bavarian State Collection of Zoology Dirk Neumann, Section Ichthyology / DNA-Storage Muenchhausenstr. 21 81247 Munich (Germany) Visit our section at: http://www.zsm.mwn.de/sektion/ichthyologie-home/ -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image001.jpg Type: image/jpeg Size: 4942 bytes Desc: image001.jpg URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image002.jpg Type: image/jpeg Size: 14844 bytes Desc: image002.jpg URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image003.jpg Type: image/jpeg Size: 4857 bytes Desc: image003.jpg URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image004.png Type: image/png Size: 8594 bytes Desc: image004.png URL: From rinconrodriguezl at ufl.edu Tue Nov 24 16:59:23 2020 From: rinconrodriguezl at ufl.edu (Rincon Rodriguez,Laura) Date: Tue, 24 Nov 2020 21:59:23 +0000 Subject: [Nhcoll-l] Jar liners In-Reply-To: References: <3ecde4298f344f7db2e7ba29824da34b@SRVBK13DB02.stadt.essen.de> , <9290540F-C3D7-4D4B-A2E9-679C55610A05@ku.edu>, Message-ID: Hi Tonya, I was recently reading about jars and lids. You might get more orientation from these references: * Suzumoto, A. (1992).Storage containers for fluid-preserved specimens. Storage Techniques for Art, Science and History-STASH. https://stashc.com/the-publication/containers-2/jars/storage-containers-for-fluid-preserved-specimens/ * Simmons, J. E. (2019). ?Storage in fluid preservatives.? In Preventive Conservation: Collection Storage, edited by Lisa Elkin and Christopher A. Norris, 491-509. New York: Society for the Preservation of Natural History; American Institute for Conservation of Historic and Artistic Works; Smithsonian Institution; The George Washington University Museum Studies Program. * https://www.nps.gov/museum/publications/conserveogram/11-04.pdf * https://spnhc.biowikifarm.net/wiki/Fluid_Collection_Monitoring The second reference has a nice table with a comparison of container type and a detailed explanation about closures. Best, Laura Rinc?n ________________________________ From: Nhcoll-l on behalf of Haff, Tonya (NCMI, Crace) Sent: Tuesday, November 24, 2020 2:31 PM To: Bentley, Andrew Charles ; Lazo-Wasem, Eric ; Rob Robins ; Callomon, Paul ; Neisskenwirth, Fabian ; 'neumann at snsb.de' ; nhcoll-l at mailman.yale.edu Subject: Re: [Nhcoll-l] Jar liners [External Email] Thanks everyone for your very thoughtful and detailed replies...such a big topic, with so many variables! I totally agree with some of you that testing should take place, as well, to help choose the best option for us, and then there are limitations such as fund and availability. We are in a tight spot right now, where I have funding to buy a lot of new jars, but I am having trouble finding the right ones, as we can no longer find the same jars we use as our standard size....which as you know leads to all sorts of downstream challenges. I know some of you suggested specific suppliers and I will chase those up, and also the bunna-n gaskets. Thanks again for all the food for thought. Cheers, Tonya ________________________________ From: Nhcoll-l on behalf of Bentley, Andrew Charles Sent: Saturday, 21 November 2020 6:01 AM To: Lazo-Wasem, Eric ; Rob Robins ; Callomon, Paul ; Neisskenwirth, Fabian ; 'neumann at snsb.de' ; nhcoll-l at mailman.yale.edu Subject: Re: [Nhcoll-l] Jar liners ?Eric I would contact O?Berk about replacement liners. They have been very good with customer service in my opinion. Andy A : A : A : }<(((_?>.,.,.,.}<(((_?>.,.,.,.}<)))_?> V V V Andy Bentley Ichthyology Collection Manager University of Kansas Biodiversity Institute Dyche Hall 1345 Jayhawk Boulevard Lawrence, KS, 66045-7561 USA Tel: (785) 864-3863 Fax: (785) 864-5335 Email: abentley at ku.edu http://ichthyology.biodiversity.ku.edu A : A : A : }<(((_?>.,.,.,.}<(((_?>.,.,.,.}<)))_?> V V V From: "eric.lazo-wasem at yale.edu" Date: Friday, November 20, 2020 at 1:42 PM To: Andrew Bentley , Rob Robins , "Callomon,Paul" , "Neisskenwirth, Fabian" , "'neumann at snsb.de'" , "nhcoll-l at mailman.yale.edu" Subject: RE: [Nhcoll-l] Jar liners Agreed Andy. When we received an NSF grant to move and upgrade, we went with O?Berk. I am not promoting them, but simply saying that is what we use and it has been very successful. One thing we do, which is embarassingly wasteful, is not reuse a cap after hit has been repeatedly opened and closed and the liner appears quite compressed to limit. I guess I should investigate replacement liners, so as not to toss the whole lid. This is not a wholesale activity, I suspect we spend less than $100 a year doing this and I see it as good insurance leveraged against the high cost of losing a specimen. If anyone has investigated replacing the liners on the PPE lids, I would like to hear their experience. It seems it would be easy given there is just a spot of ?glue? holding the liner in place. Eric A. Lazo-Wasem Senior Collections Manager Peabody Museum of Natural History Yale University 170 Whitney Ave. New Haven, CT 06520 203 432-3784 From: Nhcoll-l On Behalf Of Bentley, Andrew Charles Sent: Friday, November 20, 2020 11:22 AM To: Rob Robins ; Callomon,Paul ; Neisskenwirth, Fabian ; 'neumann at snsb.de' ; nhcoll-l at mailman.yale.edu Subject: Re: [Nhcoll-l] Jar liners We too have been replacing old orange gaskets with the new buna-n gaskets over time and these have proved to be far superior. We do also have a policy of changing all old bail-top jars to screw tops from O?Berk whenever a jar needs attention. We do not have the funds to wholesale replace all of them but hopefully over time will do so. We have seen very few problems with the jars and lids from O?Berk besides a couple of bad batches of lids that have failed more often than others and the over or under tightening problems mentioned already. These jars are cost effective and curation friendly and come in a wide variety of sizes, shapes and mouth opening sizes. Andy A : A : A : }<(((_?>.,.,.,.}<(((_?>.,.,.,.}<)))_?> V V V Andy Bentley Ichthyology Collection Manager University of Kansas Biodiversity Institute Dyche Hall 1345 Jayhawk Boulevard Lawrence, KS, 66045-7561 USA Tel: (785) 864-3863 Fax: (785) 864-5335 Email: abentley at ku.edu http://ichthyology.biodiversity.ku.edu A : A : A : }<(((_?>.,.,.,.}<(((_?>.,.,.,.}<)))_?> V V V From: Nhcoll-l > on behalf of Rob Robins > Date: Friday, November 20, 2020 at 8:55 AM To: "Callomon,Paul" >, "Neisskenwirth, Fabian" >, "'neumann at snsb.de'" >, "nhcoll-l at mailman.yale.edu" > Subject: Re: [Nhcoll-l] Jar liners Hi Folks, Would like to contribute an observation on the bail top jars ? I agree that the seals are excellent at resisting evaporation, with a major caveat: the gaskets deteriorate (at least gaskets of the type that came to us via a large relinquished collection in the 1980s). See image 1. Nearly all bail tops in our care require a levering tool to break the seal between glass and gasket (>90%), such as a stout short-bladed paint scraper. Using the tool safely takes knowhow and dexterity (brute force will work but with the attendant risk of impaling one?s hand with the tool ? and thus is strongly cautioned against). See image 2. Following jar opening, old gaskets on these old bail tops at UF are unredeemable (99% of the time). Exposed parts of the gasket are usually brittle and flake away, while the gasket that comprised the seal that lasted decades may be fully or partly molded to the jar ? totally affixed. This latter circumstance renders the jar worthless, as no replacement gasket can be placed upon such an irregular surface. See images 3 and 4. For these reasons and others, whenever we work with bail top specimen lots, we replace the jars with screw top containers -- usually at a space savings (note Paul?s comment about a limited offering of rather large sizes). If the above situation is only avoided with regular replacement of gaskets ? that needs to be considered as ongoing maintenance costs associated with the use of this jar type. But perhaps local conditions have not always been ideal and thus the gaskets degraded more rapidly than they do under ideal conditions. If so, that also should be considered by those collections whose facilities can?t always meet optimal conditions. It could also be our gaskets are of an inferior material, since improved upon or replaced by manufacturers of these containers systems. I am unclear on these points and look forward to learning more. Best wishes, Rob Robert H. Robins Collection Manager Division of Ichthyology [FLMNH Fishes logo email small] Florida Museum of Natural History 1659 Museum Rd. Gainesville, FL 32611-7800 Office: (352) 273-1957 rhrobins at flmnh.ufl.edu Search the Collection: http://specifyportal.flmnh.ufl.edu/fishes/ Search samples suitable for dna analysis: https://www.floridamuseum.ufl.edu/grr/holdings/ [cid:image002.jpg at 01D6BF45.9E4A81E0] [cid:image003.jpg at 01D6BF45.9E4A81E0] From: Nhcoll-l > On Behalf Of Callomon,Paul Sent: Friday, November 20, 2020 8:00 AM To: Neisskenwirth, Fabian >; 'neumann at snsb.de' >; nhcoll-l at mailman.yale.edu Subject: Re: [Nhcoll-l] Jar liners [External Email] We recently overhauled our 50,000-jar alcohol collection for the first time in 50 years. We found the following things for lids on screw-top jars: * Steel lids are problematic. Ours were painted black on the outside and cadmium-plated inside with solid plastic seals. The seals had almost all held, but the lids themselves had pinpoint rusting from the inside due to condensation. If those pinpoints get through the metal, the lid is more likely to fail. We?ve replaced them all. * PPE lids with either solid PPE disks or F217 liners are both fine. We started using them in the 1980s (PPE disks) and 1990s (F217) and both have lasted well, with a failure rate below 1% * Phenolic lids with coneseal liners ? very good. Bakelite and phenolic lids with food-grade-paper (coated or foil-laminated card) liners ? high failure rate. We replaced them all. * Note that there is a difference between pure phenolic resin and Bakelite. The latter has wood dust mixed with the resin, and always fails over time, often suddenly and completely. You can usually tell the difference by the gloss, color and size; Bakelite is not as black or as glossy as phenolic. If it?s over 50 mm in diameter it?s likely to be Bakelite. * However, as Dirk points out, although phenolic resin is fine with ethanol it can be affected by formaldehyde. We have also found that phenolic will leach dark color into alcohol if it is immersed for more than a year, so it?s clearly not entirely stable to ethanol either. Finally, though they are not available in small sizes the most stable and economical jars in our collection are bale jars with galvanized steel bale clips and either natural rubber, butyl or neoprene gaskets (e. g. ?Ball?-brand jars). These effectively never fail. Paul Callomon MSc Collection Manager, Malacology and General Invertebrates ________________________________ Academy of Natural Sciences of Drexel University, Philadelphia 1900 Benjamin Franklin Parkway, Philadelphia PA 19103-1195, USA prc44 at drexel.edu Tel 215-405-5096 - Fax 215-299-1170 From: Nhcoll-l > On Behalf Of Neisskenwirth, Fabian Sent: Friday, November 20, 2020 4:09 AM To: 'neumann at snsb.de' >; nhcoll-l at mailman.yale.edu Subject: Re: [Nhcoll-l] Jar liners External. Hey there, I totally agree with Dirks statement. Glass lids are much more stable than any other kind of material used in fluid collections. I would like to share my experience with a sort of new jar type from Duran? (former Schott). They have a product line called ?GLS 80? jars. It has a mouth opening of 80 mm, but the size varies from 500ml to 25000 ml. The mouth opening works very well for smaller specimens. The jars are made of borosilicate and sold at an affordable price, because they are made for the pharma industry. This is why they also have ?filling marks?, which esthetically speaking is not so nice, but it still fulfills the purpose of the jar. One of the sales agents of DWK (Duran Group), offered me that at a certain amount of jars, there could be a batch (around 1000 jars) made without ?filling marks?. There is a new type of lid for this jars too, made of Polysulfone (PSU) with a PTFE coated silicone liner. The Duran Group works worldwide, so if you have any questions regarding this contact Eric Lehnen (eric.lehnen at dwk.com). He knows about the use of the jars for collections purpose. This seems to be a very good improvement to move away from poor quality ?sausage jars? with fast degrading lids. I have made a one year aging test with three jars with ethanol 70% mixed with a buffered formaldehyde solution 3,4% (9:1) and have seen no negative reactions on the lids. But this still should be tested more thoroughly. Hope this helps you out! -- Fabian Neisskenwirth Zoologischer Pr?parator MA Student Restaurierung und Konservierung von Kulturgut +49 (0) 201 24681 470 Stiftung Ruhr Museum Fritz-Schupp-Allee 15 45141 Essen www.ruhrmuseum.de Von: Nhcoll-l [mailto:nhcoll-l-bounces at mailman.yale.edu] Im Auftrag von Dirk Neumann Gesendet: Freitag, 20. November 2020 09:10 An: nhcoll-l at mailman.yale.edu Betreff: Re: [Nhcoll-l] Jar liners Hi Tonya & Lennart, I guess there are several layers to unfold here: Foamed liners - like the F217 liners you mention - consist of a foamed cell structure which - if the lid is screwed down tight - is compressed again the neck of the jar. This outs the cells under pressure and closed cells would withstand this tension better then open cell structures. It is hard to tell if the F217 liners you mention has open or closed cells, which gas is used for filling of the foam structure, etc. Even if the F217 liners would have the right composition, right thickness, closed cells - it still a is compressible gasket which has a limited life span. To produce a good closure, you would further need to consider the threads on the jar (continuous or not), the composition of the lid itself (the best liner does not help if the plastic used for the lid itself is of poor quality, etc. Most important seems to me that sizes of such lids are standardised (rather then customised for specific jars), so that they can easily be replaced if they fail. This is one of the huge problems many collections with Copehagen jars now face after plastic lids reached the end of their life span, sized where customised, company went out of production: it is virtually impossible to replace these lids - which causes huge problems in many collections. It seems that F217 and PTFE liners are often used as inlays for Phenolic caps (Bakelite) - which is a no-go in fluid collections because this sort of thermoset plastics is easily degraded by residual formaldehyde escaping from formaldehyde preserved specimens, even if they have been transferred in to alcohol. As said: the best liner is worthless if the plastic lid itself is unsuited. In general, plastic lids are not a good oxygen barrier - this is also worth remembering, especially if specimens inside such jars release a lot of fats or oils. Rather then concentrating on specific lids I would look into jars that are designed for the pharmaceutical sector. Here, both the jar (soda-lime glass) and the lid are expected (and usually tested) to withstand a wide range of chemicals AND to provide a good barrier against oxygen. There are different suppliers of such jars, the disadvantage of the wide mouth jars however is that the largest opening in these jars is 65 mm. So a good option for for 100 - 1000 ml jars, but not for larger jars. St?lzle (who also produce high quality borosilicate stoppered jars) is a possible source for such jars, but there are many others as well: https://pharma.stoelzle.com/en/product_category/weithalsglaser/ So as mostly no clear cut answer, but hopefully one that is useful. All the best Dirk Am 20.11.2020 um 00:29 schrieb Haff, Tonya (NCMI, Crace): Hi all, I know I?ve asked about this before, but may I please clarify again?. Does anyone have preference regarding PTFE (e.g. Teflon, I believe) lid liners vs F217 liners, which are layered polyethylene (as far as I understand). Can anyone give me advice as to what would be better as a lid liner for specimens kept in 70-90% EtOH? Advice very appreciated! Cheers, Tonya --------------------------------------------------------- Dr Tonya Haff Collections Manager Australian National Wildlife Collection National Research Collections Australia, CSIRO Canberra, Australia Phone: (+61) 02 6242 1566 (office) (+61) 0419 569 109 (mobile) _______________________________________________ Nhcoll-l mailing list Nhcoll-l at mailman.yale.edu https://mailman.yale.edu/mailman/listinfo/nhcoll-l _______________________________________________ NHCOLL-L is brought to you by the Society for the Preservation of Natural History Collections (SPNHC), an international society whose mission is to improve the preservation, conservation and management of natural history collections to ensure their continuing value to society. See http://www.spnhc.org for membership information. Advertising on NH-COLL-L is inappropriate. -- [cid:image004.png at 01D6BF45.9E4A81E0] Dirk Neumann Tel: 089 / 8107-111 Fax: 089 / 8107-300 neumann(a)snsb.de Postanschrift: Staatliche Naturwissenschaftliche Sammlungen Bayerns Zoologische Staatssammlung M?nchen Dirk Neumann, Sektion Ichthyologie / DNA-Storage M?nchhausenstr. 21 81247 M?nchen Besuchen Sie unsere Sammlung: http://www.zsm.mwn.de/sektion/ichthyologie-home/ --------- Dirk Neumann Tel: +49-89-8107-111 Fax: +49-89-8107-300 neumann(a)snsb.de postal address: Bavarian Natural History Collections The Bavarian State Collection of Zoology Dirk Neumann, Section Ichthyology / DNA-Storage Muenchhausenstr. 21 81247 Munich (Germany) Visit our section at: http://www.zsm.mwn.de/sektion/ichthyologie-home/ -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... 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Name: image004.png Type: image/png Size: 8594 bytes Desc: image004.png URL: From Fabian.Neisskenwirth at ruhrmuseum.de Wed Nov 25 04:11:42 2020 From: Fabian.Neisskenwirth at ruhrmuseum.de (Neisskenwirth, Fabian) Date: Wed, 25 Nov 2020 09:11:42 +0000 Subject: [Nhcoll-l] Jar liners In-Reply-To: References: <3ecde4298f344f7db2e7ba29824da34b@SRVBK13DB02.stadt.essen.de> , <9290540F-C3D7-4D4B-A2E9-679C55610A05@ku.edu> Message-ID: <40ed681a34d341f6a6c5772f2289f028@SRVBK13DB04.stadt.essen.de> Dear Tonya, about the gaskets for bail-top jars, I would advise you (and everyone interested) to let be produced by some local rubber-manufacturing company. It?s much faster than to look for the right buna-n gaskets (which actually is just Nitril Rubber). You can even let them be made by your own choice of plastics, depending on the Fluid you will be using to preserve. So you can have a better resistance to the fluid and lifespan of the gasket. I have had very good experience using FKM, which is incredibly durable and resistant to both alcohols and formaldehyde. The gaskets have normed sizes you can take and give to the company and they will produce them exactly as you wish. Usually the production costs aren?t so expensive, so on one side you will support your local rubber industry and on the other have a very long-lasting gasket ;>) All best! -- Fabian Neisskenwirth Zoologischer Pr?parator MA Student Restaurierung und Konservierung von Kulturgut +49 (0) 201 24681 470 Stiftung Ruhr Museum Fritz-Schupp-Allee 15 45141 Essen www.ruhrmuseum.de Von: Haff, Tonya (NCMI, Crace) [mailto:Tonya.Haff at csiro.au] Gesendet: Dienstag, 24. November 2020 20:31 An: Bentley, Andrew Charles; Lazo-Wasem, Eric; Rob Robins; Callomon, Paul; Neisskenwirth, Fabian; 'neumann at snsb.de'; nhcoll-l at mailman.yale.edu Betreff: Re: [Nhcoll-l] Jar liners Thanks everyone for your very thoughtful and detailed replies...such a big topic, with so many variables! I totally agree with some of you that testing should take place, as well, to help choose the best option for us, and then there are limitations such as fund and availability. We are in a tight spot right now, where I have funding to buy a lot of new jars, but I am having trouble finding the right ones, as we can no longer find the same jars we use as our standard size....which as you know leads to all sorts of downstream challenges. I know some of you suggested specific suppliers and I will chase those up, and also the bunna-n gaskets. Thanks again for all the food for thought. Cheers, Tonya ________________________________ From: Nhcoll-l on behalf of Bentley, Andrew Charles Sent: Saturday, 21 November 2020 6:01 AM To: Lazo-Wasem, Eric ; Rob Robins ; Callomon, Paul ; Neisskenwirth, Fabian ; 'neumann at snsb.de' ; nhcoll-l at mailman.yale.edu Subject: Re: [Nhcoll-l] Jar liners ?Eric I would contact O?Berk about replacement liners. They have been very good with customer service in my opinion. Andy A : A : A : }<(((_?>.,.,.,.}<(((_?>.,.,.,.}<)))_?> V V V Andy Bentley Ichthyology Collection Manager University of Kansas Biodiversity Institute Dyche Hall 1345 Jayhawk Boulevard Lawrence, KS, 66045-7561 USA Tel: (785) 864-3863 Fax: (785) 864-5335 Email: abentley at ku.edu http://ichthyology.biodiversity.ku.edu A : A : A : }<(((_?>.,.,.,.}<(((_?>.,.,.,.}<)))_?> V V V From: "eric.lazo-wasem at yale.edu" Date: Friday, November 20, 2020 at 1:42 PM To: Andrew Bentley , Rob Robins , "Callomon,Paul" , "Neisskenwirth, Fabian" , "'neumann at snsb.de'" , "nhcoll-l at mailman.yale.edu" Subject: RE: [Nhcoll-l] Jar liners Agreed Andy. When we received an NSF grant to move and upgrade, we went with O?Berk. I am not promoting them, but simply saying that is what we use and it has been very successful. One thing we do, which is embarassingly wasteful, is not reuse a cap after hit has been repeatedly opened and closed and the liner appears quite compressed to limit. I guess I should investigate replacement liners, so as not to toss the whole lid. This is not a wholesale activity, I suspect we spend less than $100 a year doing this and I see it as good insurance leveraged against the high cost of losing a specimen. If anyone has investigated replacing the liners on the PPE lids, I would like to hear their experience. It seems it would be easy given there is just a spot of ?glue? holding the liner in place. Eric A. Lazo-Wasem Senior Collections Manager Peabody Museum of Natural History Yale University 170 Whitney Ave. New Haven, CT 06520 203 432-3784 From: Nhcoll-l On Behalf Of Bentley, Andrew Charles Sent: Friday, November 20, 2020 11:22 AM To: Rob Robins ; Callomon,Paul ; Neisskenwirth, Fabian ; 'neumann at snsb.de' ; nhcoll-l at mailman.yale.edu Subject: Re: [Nhcoll-l] Jar liners We too have been replacing old orange gaskets with the new buna-n gaskets over time and these have proved to be far superior. We do also have a policy of changing all old bail-top jars to screw tops from O?Berk whenever a jar needs attention. We do not have the funds to wholesale replace all of them but hopefully over time will do so. We have seen very few problems with the jars and lids from O?Berk besides a couple of bad batches of lids that have failed more often than others and the over or under tightening problems mentioned already. These jars are cost effective and curation friendly and come in a wide variety of sizes, shapes and mouth opening sizes. Andy A : A : A : }<(((_?>.,.,.,.}<(((_?>.,.,.,.}<)))_?> V V V Andy Bentley Ichthyology Collection Manager University of Kansas Biodiversity Institute Dyche Hall 1345 Jayhawk Boulevard Lawrence, KS, 66045-7561 USA Tel: (785) 864-3863 Fax: (785) 864-5335 Email: abentley at ku.edu http://ichthyology.biodiversity.ku.edu A : A : A : }<(((_?>.,.,.,.}<(((_?>.,.,.,.}<)))_?> V V V From: Nhcoll-l > on behalf of Rob Robins > Date: Friday, November 20, 2020 at 8:55 AM To: "Callomon,Paul" >, "Neisskenwirth, Fabian" >, "'neumann at snsb.de'" >, "nhcoll-l at mailman.yale.edu" > Subject: Re: [Nhcoll-l] Jar liners Hi Folks, Would like to contribute an observation on the bail top jars ? I agree that the seals are excellent at resisting evaporation, with a major caveat: the gaskets deteriorate (at least gaskets of the type that came to us via a large relinquished collection in the 1980s). See image 1. Nearly all bail tops in our care require a levering tool to break the seal between glass and gasket (>90%), such as a stout short-bladed paint scraper. Using the tool safely takes knowhow and dexterity (brute force will work but with the attendant risk of impaling one?s hand with the tool ? and thus is strongly cautioned against). See image 2. Following jar opening, old gaskets on these old bail tops at UF are unredeemable (99% of the time). Exposed parts of the gasket are usually brittle and flake away, while the gasket that comprised the seal that lasted decades may be fully or partly molded to the jar ? totally affixed. This latter circumstance renders the jar worthless, as no replacement gasket can be placed upon such an irregular surface. See images 3 and 4. For these reasons and others, whenever we work with bail top specimen lots, we replace the jars with screw top containers -- usually at a space savings (note Paul?s comment about a limited offering of rather large sizes). If the above situation is only avoided with regular replacement of gaskets ? that needs to be considered as ongoing maintenance costs associated with the use of this jar type. But perhaps local conditions have not always been ideal and thus the gaskets degraded more rapidly than they do under ideal conditions. If so, that also should be considered by those collections whose facilities can?t always meet optimal conditions. It could also be our gaskets are of an inferior material, since improved upon or replaced by manufacturers of these containers systems. I am unclear on these points and look forward to learning more. Best wishes, Rob Robert H. Robins Collection Manager Division of Ichthyology [FLMNH Fishes logo email small] Florida Museum of Natural History 1659 Museum Rd. Gainesville, FL 32611-7800 Office: (352) 273-1957 rhrobins at flmnh.ufl.edu Search the Collection: http://specifyportal.flmnh.ufl.edu/fishes/ Search samples suitable for dna analysis: https://www.floridamuseum.ufl.edu/grr/holdings/ [cid:image002.jpg at 01D6C310.A0EF78F0] [cid:image003.jpg at 01D6C310.A0EF78F0] From: Nhcoll-l > On Behalf Of Callomon,Paul Sent: Friday, November 20, 2020 8:00 AM To: Neisskenwirth, Fabian >; 'neumann at snsb.de' >; nhcoll-l at mailman.yale.edu Subject: Re: [Nhcoll-l] Jar liners [External Email] We recently overhauled our 50,000-jar alcohol collection for the first time in 50 years. We found the following things for lids on screw-top jars: * Steel lids are problematic. Ours were painted black on the outside and cadmium-plated inside with solid plastic seals. The seals had almost all held, but the lids themselves had pinpoint rusting from the inside due to condensation. If those pinpoints get through the metal, the lid is more likely to fail. We?ve replaced them all. * PPE lids with either solid PPE disks or F217 liners are both fine. We started using them in the 1980s (PPE disks) and 1990s (F217) and both have lasted well, with a failure rate below 1% * Phenolic lids with coneseal liners ? very good. Bakelite and phenolic lids with food-grade-paper (coated or foil-laminated card) liners ? high failure rate. We replaced them all. * Note that there is a difference between pure phenolic resin and Bakelite. The latter has wood dust mixed with the resin, and always fails over time, often suddenly and completely. You can usually tell the difference by the gloss, color and size; Bakelite is not as black or as glossy as phenolic. If it?s over 50 mm in diameter it?s likely to be Bakelite. * However, as Dirk points out, although phenolic resin is fine with ethanol it can be affected by formaldehyde. We have also found that phenolic will leach dark color into alcohol if it is immersed for more than a year, so it?s clearly not entirely stable to ethanol either. Finally, though they are not available in small sizes the most stable and economical jars in our collection are bale jars with galvanized steel bale clips and either natural rubber, butyl or neoprene gaskets (e. g. ?Ball?-brand jars). These effectively never fail. Paul Callomon MSc Collection Manager, Malacology and General Invertebrates ________________________________ Academy of Natural Sciences of Drexel University, Philadelphia 1900 Benjamin Franklin Parkway, Philadelphia PA 19103-1195, USA prc44 at drexel.edu Tel 215-405-5096 - Fax 215-299-1170 From: Nhcoll-l > On Behalf Of Neisskenwirth, Fabian Sent: Friday, November 20, 2020 4:09 AM To: 'neumann at snsb.de' >; nhcoll-l at mailman.yale.edu Subject: Re: [Nhcoll-l] Jar liners External. Hey there, I totally agree with Dirks statement. Glass lids are much more stable than any other kind of material used in fluid collections. I would like to share my experience with a sort of new jar type from Duran? (former Schott). They have a product line called ?GLS 80? jars. It has a mouth opening of 80 mm, but the size varies from 500ml to 25000 ml. The mouth opening works very well for smaller specimens. The jars are made of borosilicate and sold at an affordable price, because they are made for the pharma industry. This is why they also have ?filling marks?, which esthetically speaking is not so nice, but it still fulfills the purpose of the jar. One of the sales agents of DWK (Duran Group), offered me that at a certain amount of jars, there could be a batch (around 1000 jars) made without ?filling marks?. There is a new type of lid for this jars too, made of Polysulfone (PSU) with a PTFE coated silicone liner. The Duran Group works worldwide, so if you have any questions regarding this contact Eric Lehnen (eric.lehnen at dwk.com). He knows about the use of the jars for collections purpose. This seems to be a very good improvement to move away from poor quality ?sausage jars? with fast degrading lids. I have made a one year aging test with three jars with ethanol 70% mixed with a buffered formaldehyde solution 3,4% (9:1) and have seen no negative reactions on the lids. But this still should be tested more thoroughly. Hope this helps you out! -- Fabian Neisskenwirth Zoologischer Pr?parator MA Student Restaurierung und Konservierung von Kulturgut +49 (0) 201 24681 470 Stiftung Ruhr Museum Fritz-Schupp-Allee 15 45141 Essen www.ruhrmuseum.de Von: Nhcoll-l [mailto:nhcoll-l-bounces at mailman.yale.edu] Im Auftrag von Dirk Neumann Gesendet: Freitag, 20. November 2020 09:10 An: nhcoll-l at mailman.yale.edu Betreff: Re: [Nhcoll-l] Jar liners Hi Tonya & Lennart, I guess there are several layers to unfold here: Foamed liners - like the F217 liners you mention - consist of a foamed cell structure which - if the lid is screwed down tight - is compressed again the neck of the jar. This outs the cells under pressure and closed cells would withstand this tension better then open cell structures. It is hard to tell if the F217 liners you mention has open or closed cells, which gas is used for filling of the foam structure, etc. Even if the F217 liners would have the right composition, right thickness, closed cells - it still a is compressible gasket which has a limited life span. To produce a good closure, you would further need to consider the threads on the jar (continuous or not), the composition of the lid itself (the best liner does not help if the plastic used for the lid itself is of poor quality, etc. Most important seems to me that sizes of such lids are standardised (rather then customised for specific jars), so that they can easily be replaced if they fail. This is one of the huge problems many collections with Copehagen jars now face after plastic lids reached the end of their life span, sized where customised, company went out of production: it is virtually impossible to replace these lids - which causes huge problems in many collections. It seems that F217 and PTFE liners are often used as inlays for Phenolic caps (Bakelite) - which is a no-go in fluid collections because this sort of thermoset plastics is easily degraded by residual formaldehyde escaping from formaldehyde preserved specimens, even if they have been transferred in to alcohol. As said: the best liner is worthless if the plastic lid itself is unsuited. In general, plastic lids are not a good oxygen barrier - this is also worth remembering, especially if specimens inside such jars release a lot of fats or oils. Rather then concentrating on specific lids I would look into jars that are designed for the pharmaceutical sector. Here, both the jar (soda-lime glass) and the lid are expected (and usually tested) to withstand a wide range of chemicals AND to provide a good barrier against oxygen. There are different suppliers of such jars, the disadvantage of the wide mouth jars however is that the largest opening in these jars is 65 mm. So a good option for for 100 - 1000 ml jars, but not for larger jars. St?lzle (who also produce high quality borosilicate stoppered jars) is a possible source for such jars, but there are many others as well: https://pharma.stoelzle.com/en/product_category/weithalsglaser/ So as mostly no clear cut answer, but hopefully one that is useful. All the best Dirk Am 20.11.2020 um 00:29 schrieb Haff, Tonya (NCMI, Crace): Hi all, I know I?ve asked about this before, but may I please clarify again?. Does anyone have preference regarding PTFE (e.g. Teflon, I believe) lid liners vs F217 liners, which are layered polyethylene (as far as I understand). Can anyone give me advice as to what would be better as a lid liner for specimens kept in 70-90% EtOH? Advice very appreciated! Cheers, Tonya --------------------------------------------------------- Dr Tonya Haff Collections Manager Australian National Wildlife Collection National Research Collections Australia, CSIRO Canberra, Australia Phone: (+61) 02 6242 1566 (office) (+61) 0419 569 109 (mobile) _______________________________________________ Nhcoll-l mailing list Nhcoll-l at mailman.yale.edu https://mailman.yale.edu/mailman/listinfo/nhcoll-l _______________________________________________ NHCOLL-L is brought to you by the Society for the Preservation of Natural History Collections (SPNHC), an international society whose mission is to improve the preservation, conservation and management of natural history collections to ensure their continuing value to society. See http://www.spnhc.org for membership information. Advertising on NH-COLL-L is inappropriate. -- [cid:image004.png at 01D6C310.A0EF78F0] Dirk Neumann Tel: 089 / 8107-111 Fax: 089 / 8107-300 neumann(a)snsb.de Postanschrift: Staatliche Naturwissenschaftliche Sammlungen Bayerns Zoologische Staatssammlung M?nchen Dirk Neumann, Sektion Ichthyologie / DNA-Storage M?nchhausenstr. 21 81247 M?nchen Besuchen Sie unsere Sammlung: http://www.zsm.mwn.de/sektion/ichthyologie-home/ --------- Dirk Neumann Tel: +49-89-8107-111 Fax: +49-89-8107-300 neumann(a)snsb.de postal address: Bavarian Natural History Collections The Bavarian State Collection of Zoology Dirk Neumann, Section Ichthyology / DNA-Storage Muenchhausenstr. 21 81247 Munich (Germany) Visit our section at: http://www.zsm.mwn.de/sektion/ichthyologie-home/ -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image001.jpg Type: image/jpeg Size: 4942 bytes Desc: image001.jpg URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image002.jpg Type: image/jpeg Size: 14844 bytes Desc: image002.jpg URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image003.jpg Type: image/jpeg Size: 4857 bytes Desc: image003.jpg URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: image004.png Type: image/png Size: 8594 bytes Desc: image004.png URL: From Fabian.Neisskenwirth at ruhrmuseum.de Thu Nov 26 07:19:57 2020 From: Fabian.Neisskenwirth at ruhrmuseum.de (Neisskenwirth, Fabian) Date: Thu, 26 Nov 2020 12:19:57 +0000 Subject: [Nhcoll-l] Lichen collection storage Message-ID: <82941042d9814a839a7581ae27debebf@SRVBK13DB04.stadt.essen.de> Dear all, Here at the Ruhr Museum we are currently moving lots of our collections into a new "exhibition storage building" that will be opening next year. The main issue about this, is that for safety reasons against possible pest damage, we decided to avoid storing certain objects in paper or cardboard materials. These could become be a nutrition source for different organisms. As the Ruhr Museum is mainly a local cultural history Museum and holds an immense collection of artefacts made of wood and other materials susceptible to pest damage, everything is stored on ethafoam mats and Tyvek? sheets, as these are not problematic to pest infestation. The natural history collections consist mostly of paleontological and geological specimens. But it has also a few collections of more recent specimens. One of this collections is an lichen collection of the 1990?s, with thousands of specimens stored in little cardboard boxes and paper envelopes. This is why we can't move them in to the new collection building. I was asked to look for advice in how to store them in alternative materials that present no nutrition source. As far as I know herbaria are usually stored between paper sheets and cardboard boxes (archival quality of course), so I wanted to know if anyone has had experience using different materials for herbal storage. As I mostly work with the conservation of zoological specimens, this is a new field for me. As you can see in the pictures attached the actual storage is not very ideal either, very few are stored in little plastic cases, which I think are not very good for conservation purposes. What solution would you suggest? All best from Essen and many thanks in advance! -- Fabian Neisskenwirth Zoologischer Pr?parator MA Student Restaurierung und Konservierung von Kulturgut +49 (0) 201 24681 470 Stiftung Ruhr Museum Fritz-Schupp-Allee 15 45141 Essen www.ruhrmuseum.de -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: Box.jpg Type: image/jpeg Size: 303092 bytes Desc: Box.jpg URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: Specimens.jpg Type: image/jpeg Size: 250418 bytes Desc: Specimens.jpg URL: From emily.braker at colorado.edu Mon Nov 30 12:28:42 2020 From: emily.braker at colorado.edu (Emily M. Braker) Date: Mon, 30 Nov 2020 17:28:42 +0000 Subject: [Nhcoll-l] Webinar (Dec 8) - Introduction to Arctos for Mammal Collections Message-ID: Please join us for an introduction to managing Mammalogy Collections in Arctos. Abstract: Arctos serves data on over 1,048,000 mammalogical records from 28 collections, including mammal specimens, observations, and media (e.g., photographs, ct scans, fieldnotes). Mammalian data sets range from 3 to over 328,000 records, making Arctos an excellent option for all sizes of collections. Specimens date to the 1850's, are global in scope and span Mammalia. This webinar will highlight some of the key features of Arctos for managing mammalogical data, including: shared localities, relationships between different types of specimens (e.g., host-parasite/pathogen, shared parts), transactions (accessions, loans), linkage to outside databases (e.g., GenBank), object tracking, and projects/publications for citing usage in research. We also will illustrate how media are linked to mammal specimens in Arctos, and will showcase how these media have been used in impactful ways. Presenters: Jon Dunnum (Senior Collection Manager, Division of Mammals) and Mariel Campbell (Collection Manager, Division of Genomic Resources), Museum of Southwestern Biology When: Tuesday, December 8, 2020 at 3:00pm ET/1:00pm MT (19:00 UTC) Where: https://cuboulder.zoom.us/j/96749042184 Can't Make It?: View archived recordings here https://arctosdb.org/learn/webinars/ Emily Braker Vertebrate Collections Manager, Zoology Section University of Colorado Museum of Natural History 265 UCB, Bruce Curtis Building Boulder, CO 80309-0218 Phone: 303-492-8466 http://www.colorado.edu/cumuseum/research-collections/vertebrates -------------- next part -------------- An HTML attachment was scrubbed... URL: