[Nhcoll-l] shelving in wet collection

Wed Jan 5 09:58:41 EST 2022

Hi!

Now we are back on wire shelving beacause the shelving company says that
the wired ones are actually more stable and do not bend like perforated steel shelves.
For me the picture of the shelve looks quite promising and its load-bearing capacity is 200kg!
What do you think?
[cid:image002.jpg at 01D80255.7D6A64F0]

Best!
Lennart

From: Nhcoll-l [mailto:nhcoll-l-bounces at mailman.yale.edu] On Behalf Of Lennart Lennuk
Sent: Wednesday, January 5, 2022 3:35 PM
To: Callomon,Paul <prc44 at drexel.edu>; neumann at snsb.de
Cc: nhcoll-l at mailman.yale.edu
Subject: Re: [Nhcoll-l] shelving in wet collection

Thank you all.
We are then deciding to use perforated steel plate with powder coating.
Have you any suggestions how the perforation could be done?

Shelvng company is offering this kind but I am concerned again about the stability of little jars
because the holes seem to be quite big
[cid:image003.jpg at 01D80254.D5D4EF80]

Best!
Lennart

From: Callomon,Paul [mailto:prc44 at drexel.edu]
Sent: Wednesday, January 5, 2022 2:54 PM
To: neumann at snsb.de<mailto:neumann at snsb.de>; Lennart Lennuk <Lennart.Lennuk at loodusmuuseum.ee<mailto:Lennart.Lennuk at loodusmuuseum.ee>>
Cc: nhcoll-l at mailman.yale.edu<mailto:nhcoll-l at mailman.yale.edu>
Subject: RE: [Nhcoll-l] shelving in wet collection

Another problem with “fridge shelving” is that the plastic coating (which is usually not powder coating but hot-dip) can crack and fail in time, especially around welded joints that remain rigid while the bars bend slightly under the weight of their load. The metal underneath is unprimed mild steel, so it rusts fast.
Bear in mind too that shelving made of rods does not bear loads evenly; a jar sitting near the edge, for example, will be better supported on one side than the other and will thus lean a bit.

Paul Callomon
Collection Manager, Malacology and General Invertebrates
________________________________
Academy of Natural Sciences of Drexel University
1900 Benjamin Franklin Parkway, Philadelphia PA 19103-1195, USA
prc44 at drexel.edu<mailto:prc44 at drexel.edu> Tel 215-405-5096 - Fax 215-299-1170

From: Nhcoll-l <nhcoll-l-bounces at mailman.yale.edu<mailto:nhcoll-l-bounces at mailman.yale.edu>> On Behalf Of Dirk Neumann
Sent: Wednesday, January 5, 2022 7:06 AM
To: Lennart Lennuk <Lennart.Lennuk at loodusmuuseum.ee<mailto:Lennart.Lennuk at loodusmuuseum.ee>>
Cc: nhcoll-l at mailman.yale.edu<mailto:nhcoll-l at mailman.yale.edu>
Subject: Re: [Nhcoll-l] shelving in wet collection

External.

I Lennart,

I doubt that jars will be stable on this sort of shelves; also, how much would be the total allowed weight on such shelves? The design doesn't seem to be suited to carry huge weights.

With best wishes
Dirk

Am 05.01.2022 um 12:17 schrieb Lennart Lennuk:
Most of our fluid preserved collection is in 100, 300 and 500ml jars.
This far I have been asking the shelving company for perforated steel shelf plates finished with powder coating
but the company is trying to convince me to use the shelving shown on the picture in my previous letter.

Best!
Lennart

From: Dirk Neumann [mailto:neumann at snsb.de]
Sent: Wednesday, January 5, 2022 12:17 PM
To: Lennart Lennuk <Lennart.Lennuk at loodusmuuseum.ee><mailto:Lennart.Lennuk at loodusmuuseum.ee>
Cc: nhcoll-l at mailman.yale.edu<mailto:nhcoll-l at mailman.yale.edu>
Subject: Re: [Nhcoll-l] shelving in wet collection

Hi Lennart,

to me this looks like storage for lab consumables, and even for this purpose you may need to prefer (closed) chemical cabinets instead of open storage (depending on the lab chemicals).

For ordinary fluid preserved collections, the recommendation is not to go below 75 ml fluid volume per container. Depending on the quality of the closures and the environmental settings in the storage area, containers below 75 ml may dry up fast, if the seal/closure is bad. Depending on the number of jars, you would need to adjust your monitoring regime to spot evaporation losses and to prevent damage to objects stored in smaller containers.

If you would need or want to store specimens in smaller volumes, it would make more sense to use closed cabinets with drawers. Ideally, as Simon recommends, the drawers are equipped with grids or boxes that stabilise the small vials or tubes. We have equipped our cool and refrigerated storage with such drawer-cabinets<https://nam10.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww.lista.com%2Fen%2Fproducts%2Fdrawer-cabinets%2F&data=04%7C01%7Cprc44%40drexel.edu%7Cd2b76322a298433fb77108d9d044128f%7C3664e6fa47bd45a696708c4f080f8ca6%7C0%7C1%7C637769813076156842%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=ZsQMPfeHyH3uIZyrbzDZ4DkyIpa8AiX15YWiI0f1WDI%3D&reserved=0>

Hope this helps
Dirk

Am 05.01.2022 um 10:38 schrieb Lennart Lennuk:
Hi

Do you have any experience using this kind of shelving in wet collections?
I am worried about load-bearing capacity and also the stability of little jars.
Is it ok to place a rubber mat under little jars to maintain the stability?

[mailbox:///C:/Mail/qk9hn92x.slt/Mail/mailin.lrz-muenchen.de/Inbox?number=336779710&header=quotebody&part=1.2&filename=image001.jpg]

Best regards!
Lennart Lennuk
Head of collections
Estonian Museum of Natural History
+372 6603404, 56569916

_______________________________________________

Nhcoll-l mailing list

Nhcoll-l at mailman.yale.edu<mailto:Nhcoll-l at mailman.yale.edu>

https://mailman.yale.edu/mailman/listinfo/nhcoll-l<https://nam10.safelinks.protection.outlook.com/?url=https%3A%2F%2Fmailman.yale.edu%2Fmailman%2Flistinfo%2Fnhcoll-l&data=04%7C01%7Cprc44%40drexel.edu%7Cd2b76322a298433fb77108d9d044128f%7C3664e6fa47bd45a696708c4f080f8ca6%7C0%7C1%7C637769813076156842%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=hAR%2BEi8nH%2FDTdFaxs2T7r5jJ25teQ48tl60zCGNj4VY%3D&reserved=0>

_______________________________________________

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<https://nam10.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.spnhc.org%2F&data=04%7C01%7Cprc44%40drexel.edu%7Cd2b76322a298433fb77108d9d044128f%7C3664e6fa47bd45a696708c4f080f8ca6%7C0%7C1%7C637769813076156842%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=zjONX%2FBM9j3tBn%2FnxsdK4Ds9iYa%2BkLsC5990oNURmzI%3D&reserved=0> for membership information.

Advertising on NH-COLL-L is inappropriate.

--

[cid:image002.png at 01D80249.9102FD30]

Dirk Neumann

Tel: 089 / 8107-111
Fax: 089 / 8107-300
neumann(a)snsb.de

Postanschrift:

Staatliche Naturwissenschaftliche Sammlungen Bayerns
Zoologische Staatssammlung München
Dirk Neumann, Sektion Ichthyologie / DNA-Storage
Münchhausenstr. 21
81247 München

Besuchen Sie unsere Sammlung:
http://www.zsm.mwn.de/sektion/ichthyologie-home/<https://nam10.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.zsm.mwn.de%2Fsektion%2Fichthyologie-home%2F&data=04%7C01%7Cprc44%40drexel.edu%7Cd2b76322a298433fb77108d9d044128f%7C3664e6fa47bd45a696708c4f080f8ca6%7C0%7C1%7C637769813076156842%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=d5wIZSmwMBnQbnYQpnWHjSMDxdkAD2xZzVEH7HZQsgI%3D&reserved=0>

---------

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/<https://nam10.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.zsm.mwn.de%2Fsektion%2Fichthyologie-home%2F&data=04%7C01%7Cprc44%40drexel.edu%7Cd2b76322a298433fb77108d9d044128f%7C3664e6fa47bd45a696708c4f080f8ca6%7C0%7C1%7C637769813076156842%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=d5wIZSmwMBnQbnYQpnWHjSMDxdkAD2xZzVEH7HZQsgI%3D&reserved=0>

--

[cid:image003.png at 01D80209.61FC8550]

Dirk Neumann

Tel: 089 / 8107-111
Fax: 089 / 8107-300
neumann(a)snsb.de

Postanschrift:

Staatliche Naturwissenschaftliche Sammlungen Bayerns
Zoologische Staatssammlung München
Dirk Neumann, Sektion Ichthyologie / DNA-Storage
Münchhausenstr. 21
81247 München

Besuchen Sie unsere Sammlung:
http://www.zsm.mwn.de/sektion/ichthyologie-home/<https://nam10.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.zsm.mwn.de%2Fsektion%2Fichthyologie-home%2F&data=04%7C01%7Cprc44%40drexel.edu%7Cd2b76322a298433fb77108d9d044128f%7C3664e6fa47bd45a696708c4f080f8ca6%7C0%7C1%7C637769813076469307%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=%2FJQQxcGY0m2uHWRnom1ymEMSZitYbOBXRscO9zcXwu4%3D&reserved=0>

---------

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/<https://nam10.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.zsm.mwn.de%2Fsektion%2Fichthyologie-home%2F&data=04%7C01%7Cprc44%40drexel.edu%7Cd2b76322a298433fb77108d9d044128f%7C3664e6fa47bd45a696708c4f080f8ca6%7C0%7C1%7C637769813076469307%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=%2FJQQxcGY0m2uHWRnom1ymEMSZitYbOBXRscO9zcXwu4%3D&reserved=0>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.yale.edu/pipermail/nhcoll-l/attachments/20220105/e9277c81/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image003.jpg
Type: image/jpeg
Size: 11262 bytes
Desc: image003.jpg
URL: <http://mailman.yale.edu/pipermail/nhcoll-l/attachments/20220105/e9277c81/attachment-0003.jpg>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image005.jpg
Type: image/jpeg
Size: 42269 bytes
Desc: image005.jpg
URL: <http://mailman.yale.edu/pipermail/nhcoll-l/attachments/20220105/e9277c81/attachment-0004.jpg>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image006.png
Type: image/png
Size: 8606 bytes
Desc: image006.png
URL: <http://mailman.yale.edu/pipermail/nhcoll-l/attachments/20220105/e9277c81/attachment-0002.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image007.png
Type: image/png
Size: 8608 bytes
Desc: image007.png
URL: <http://mailman.yale.edu/pipermail/nhcoll-l/attachments/20220105/e9277c81/attachment-0003.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image002.jpg
Type: image/jpeg
Size: 22287 bytes
Desc: image002.jpg
URL: <http://mailman.yale.edu/pipermail/nhcoll-l/attachments/20220105/e9277c81/attachment-0005.jpg>