[Nhcoll-l] Information about fluid collections
Roberta Salmaso
roberta.salmaso at comune.verona.it
Tue Aug 22 04:13:58 EDT 2017
Hi Juliette,
just to look at things from another point of wiew: our wet collection
(around 10.000 jars, mostly small invertebrates in ethanol 70%) is
housed in two rooms equipped with a self fire suppression system. We use
swing top jars sealed with their gasket plus a PEHD sheet to improve
sealing and protect the gasket.
Evaporation is not a big issue, it is very slow and we keep monitoring
the jars. Works pretty well.
If you have a big collection I think it would be easier and less time
and money consuming to provide your new facility with a fire suppression
system and may be improve the jars sealing.
Could this be an option?
All the best,
Roberta
Il 21/08/2017 19:43, Peter Rauch ha scritto:
> Hi Juliette,
>
> I know nothing about what possibilities/options exist for transferring
> your collection. Others have provided many suggestions. But what is
> common among their responses is that they too do not know the full
> character and magnitude of the problem you may be faced with.
>
> Below is the only information I've been able to glean from your two
> emails describing the (portion of the?) collection that is in liquid
> which may need some manner of conditioning at some point before,
> during, and/or after moving it to new storage facility, itself
> hitherto of undescribed construction and features.
>
> "Many organisms"? What about number of containers --hundreds,
> thousands, more? How many containers of each type of organism; each
> type of fluid perservative? What's the ratio of fluid volumes to
> specimen volumes (e.g., lots of fluid for a specimen, or are specimens
> packed tightly into the containers with not much preservative fluid)?
>
> Why are the fluids evaporating? (E.g., will the containers themselves
> need to be changed even if you weren't to replace the preservative
> fluids in them, entailing perhaps even more handling of the specimens?
> I assume that the "new storage" you indicate is referring to a new
> facility/building, and not new specimen containers.)
>
> "Many marine specimens", but in proportion relative to the kinds of
> preservatives each kind is preserved in, are most containers "Alcool",
> "Ethanol" (and, are you making a distinction between alcool and ethanol)?
>
> But then you also indicate that you do not know in what fluids the
> specimens are currently preserved.
>
> Does the " compulsory from our guardianship and funders " condition
> really require "no evaporation of products", or does it require that
> any such evaporations be safely management (e.g., captured, disposed
> of)? Does it really require "no flammable or toxic products allowed",
> or does it require that such products be managed with some practicable
> degree of safety?
>
> What might be useful answers for a few containers, may be useless for
> a very large number of containers. Ditto with respect to the absolute
> and relative numbers of each type of organisms being preserved.
>
> Peter
>
> [Excerpts of emails from J. Galpin]
>
> "I’m in charge of all the scientific collection in the Natural History
> Museum of Le Havre, in France.
>
> "We have a collection which is maintained in fluids, and we want to
> repack it. The specimens are currently in liquid as Alcool, Ethanol
> and a bit of Formol.
>
> "Actually, the collection needs to be moved into safer fluids, for its
> own conservation (the fluids are evaporating), and because it will be
> moved to a new storage, that need to match new standards (no flammable
> or toxic products allowed, no evaporation of products, keeping the
> possibility of studying DNA, etc.).
>
> "... we have many marine organisms like fishes, shellfishes,
> cnidarians, sponges, ascidians, and so on... But we also have mammals,
> reptilians and amphibians for instance.
>
> "And we don’t know in which fluid the collections are currently
> preserved, neither the way they were fixed.
>
>
> [Full text of emails from J. Galpin]
>
> On 18 Aug 2017, at 08:50, Galpin Juliette
> <juliette.galpin at lehavre.fr
> <mailto:juliette.galpin at lehavre.fr>> wrote:
>
> Hi Everybody,
>
> Thank you all for answering me so quickly !
>
> Actually, the collection needs to be moved into safer
> fluids, for its own conservation (the fluids are
> evaporating), and because it will be moved to a new
> storage, that need to match new standards (no flammable or
> toxic products allowed, no evaporation of products,
> keeping the possibility of studying DNA, etc.). It is
> compulsory from our guardianship and funders of our new
> storage location. And Kaiserling seemed like a good idea,
> because it matches all these constraints. But I completely
> understand all the reservations you have regarding this
> operation and the harm it could do to specimens. That is
> why I need all the help possible to do this operation,
> keeping the risks to a minimum.
>
> Simon, you assumed well, we have many marine organisms
> like fishes, shellfishes, cnidarians, sponges, ascidians,
> and so on... But we also have mammals, reptilians and
> amphibians for instance. Will Kaiserling be fine for these
> specimens too ? Do they need more precautions ?
>
> How could I do to avoid having these bubbles due to
> changing in osmotic pressure ? I don’t know how to measure
> this osmotic pressure and watch out for its changeover…
> And we don’t know in which fluid the collections are
> currently preserved, neither the way they were fixed.
>
> Could you help me set the better process to do this
> changeover with all precautions needed please ? For a
> changeover into ethanol, I’ve seen that the specimens must
> have been adapted to their new fluid by successive baths
> of ethanol at different concentrations. Do I have to
> follow the same process with Kaiserling ?
>
> I will only use the preservative fluid, because all the
> specimens have already been fixed (I guess).
>
> For the formula of the preservative solution, I’ve found
> that it is 900g Potassium acetate ; 6L Water ; 3,6L
> glycerol ; and some thymol. What are the good proportions
> for the mixture then ?! Thank for the recipe and the way
> to do it, but is it the same with thymol than with camphor ?
>
> Again, thank you very much to all of you for helping me to
> implement this delicate operation.
>
> Kind regards.
>
> Juliette Galpin
>
> On 16 Aug 2017, at 10:37, Galpin Juliette
> <juliette.galpin at lehavre.fr
> <mailto:juliette.galpin at lehavre.fr>> wrote:
>
> Hello,
>
> My name is Juliette Galpin and I’m in charge of
> all the scientific collection in the Natural
> History Museum of Le Havre, in France.
>
> I’m following the advice of Judith White, in
> Natural History Museum, who told me to get in
> touch with you. Hope you won’t mind.
>
> We have a collection which is maintained in
> fluids, and we want to repack it. The specimens
> are currently in liquid as Alcool, Ethanol and a
> bit of Formol. And we wish to recondition it in
> Kaiserling III, which is a mixture of glycerin and
> acetate of potassium without any formol. I don’t
> know if you know, or use, this liquid.
>
> I’ve found some of your papers about collections
> in fluids, but there is few literature about
> Kaiserling precisely, and I don’t really know how
> to create this liquid correctly.
>
> Do you know this product, or someone who might
> know and use it, or maybe know the process to
> adapt the specimens to their new conservation fluid ?
>
> Thank you very much for your answer and all the
> help you can provide me,
>
> Regards.
>
> Juliette Galpin
>
> <image001.jpg>
>
> *Juliette GALPIN*
> In charge of Natural history Collections
>
> Natural history Museum
> Ville du Havre
> juliette.galpin at lehavre.fr
> <mailto:juliette.galpin at lehavre.fr>
> Tél. : 02 35 54 75 89 / 02.32.74.79.90
>
>
>
> _______________________________________________
> Nhcoll-l mailing list
> Nhcoll-l at mailman.yale.edu
> http://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 https://urldefense.proofpoint.com/v2/url?u=http-3A__www.spnhc.org&d=DwIFaQ&c=cjytLXgP8ixuoHflwc-poQ&r=LpYc_Z_iN1KRw0hheb3x6-8MJUMu482qfHowpGYJqwc&m=VGf1KSrCfBGEBh9yQNeHy7K9lm_xjmF_gf1Ow04CCoA&s=Rt8ixXbUrjDzJ_am8gfI6cHdbfVgg3UjXWF6iWa1g4Y&e= for membership information.
> Advertising on NH-COLL-L is inappropriate.
--
Roberta Salmaso
Roberta Salmaso
tecnico sezione di zoologia
Museo Civico di Storia Naturale
lungadige Porta Vittoria 9
I 37129 Verona
tel +39 0458079417 -9400
fax +39 045 8035639
roberta.salmaso at comune.verona.it <mailto:roberta.salmaso at comune.verona.it>
www.museostorianaturaleverona.it <https://urldefense.proofpoint.com/v2/url?u=http-3A__www.museostorianaturaleverona.it_&d=DwIFaQ&c=cjytLXgP8ixuoHflwc-poQ&r=LpYc_Z_iN1KRw0hheb3x6-8MJUMu482qfHowpGYJqwc&m=VGf1KSrCfBGEBh9yQNeHy7K9lm_xjmF_gf1Ow04CCoA&s=19dBhN-cd-ZJtN9W_9CbE_lY9RDRceSvE-CNKXnKd20&e= >
*seguici su facebook <https://urldefense.proofpoint.com/v2/url?u=https-3A__www.facebook.com_museostorianaturaleverona&d=DwIFaQ&c=cjytLXgP8ixuoHflwc-poQ&r=LpYc_Z_iN1KRw0hheb3x6-8MJUMu482qfHowpGYJqwc&m=VGf1KSrCfBGEBh9yQNeHy7K9lm_xjmF_gf1Ow04CCoA&s=882DIXsCfRgpJJzj4OS5FQ9Eghwtltj0g_eI9nJK3S8&e= >*
.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.
/Magna Verona vale, valeas per saecula semper/
/et celebrent gentes nomen in orbe tuum. /
-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.
Questo messaggio è confidenziale e se vi è pervenuto per errore, siete
pregati di avvisare subito il mittente. Il COMUNE DI VERONA non assume
alcuna responsabilità riguardo al contenuto ed alle opinioni espresse
nel messaggio, che deve essere ricondotto esclusivamente al suo autore.
This message is confidential and if you have received it by mistake,
please notify the sender. Please note that any views or opinions
presented in this email are solely those of the author and do not
necessarily represent those of the City of Verona.
-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.
Questo messaggio e' confidenziale e se vi e' pervenuto erroneamente, siete pregati di avvisare subito il mittente. Il COMUNE DI VERONA non assume alcuna responsabilita' riguardo al contenuto ed alle opinioni espresse nel messaggio, che deve essere ricondotto esclusivamente al suo autore.
This message is confidential and if you have received it by mistake, please notify the sender. Please note that any views or opinions presented in this email are solely those of the author and do not necessarily represent those of the City of Verona.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mailman.yale.edu/pipermail/nhcoll-l/attachments/20170822/7b53e23c/attachment.html
More information about the Nhcoll-l
mailing list