[Nhcoll-l] Supplier in California for jars and lids for fluid preserved collections?

[Mare Nazaire]

HI Dirk and everyone who responded to my inquiry,

Thank you! All of the suggestions have been very helpful - I appreciate the
prompt responses and your insights about local companies and info about the
jars and lids themselves.

Best wishes,
~Mare

On Sat, Sep 2, 2023 at 2:06 AM Dirk Neumann <d.neumann at leibniz-lib.de>
wrote:

> Hi all,
>
> agree with Doug that jars culinary jars are widely used, and this is not
> only Le-Perfait jars. Snap-on lids may perform differently, a general
> problem with snap-on plastic lids (as with other plastic lids) is, that
> plastic is ageing and if they start to fail usually entire batches in the
> collections fail more or less simultaneously. All with famous Copenhagen
> jars know this all too well.
>
> Recently had a very interesting exchange with a company producing metal
> twist-on lids. There are also a couple of changes after the ban of PVC as
> liner in metal lids (which is related with the banning of the plasticizer
> Bisphenol A from usage for food containers), about which we don't know too
> much at the moment.
>
> The different categories of inner coatings, including specific coating to
> withstand acetic, strong acetic and salty fillings (Link
> <https://www.pano.de/files/public/downloads/en/Pano_Blueseal_Datenblatt_EN_5.0.pdf>;
> screenshot below); classes S4 & S5 have a three-layer coating and surely
> would be preferable for our purposes as well.
>
> With best wishes
> Dirk
>
>
>
> Am 02.09.2023 um 01:45 schrieb Douglas Yanega:
>
> For less-than-critical storage (such as bulk samples) we have often used
> various sizes of Mason jars (both Kerr and Ball), and - for very long-term
> storage - culinary jars with gaskets and a latchable lid, rather than
> anything from specialty suppliers.
>
> These aren't exactly manufactured for museum specimen storage, but we
> honestly have had very, very few problems with them, over a 25-year time
> span for many of them.
>
> Note that for the kinds of specimens we store (arthropods), there's no
> evidence that any chemicals from the gaskets of either type of jar are
> problematic, so it really comes down to preventing alcohol from
> evaporating, and they seem to do this pretty well, aside from the smallest
> size of the Mason jars (4 oz.), with which we've had some problems. Not
> sure why it's only the smallest jars that are troublesome.
>
> Are we deluding ourselves about the longevity of these jars?
>
> Peace,
>
>
> --
>
> ******
>
>
>
> *Dirk Neumann*
>
> Collection Manager, Hamburg
>
>
>
> Postal address:
>
> *Museum of Nature Hamburg*
> Leibniz Institute for the Analysis
>
> of Biodiversity Change
>
> Dirk Neumann
>
> Martin-Luther-King-Platz 3
>
> 20146 Hamburg
> +49 40 238 317 – 628
>
> *d.neumann at leibniz-lib.de <d.neumann at leibniz-lib.de>*
>
> www.leibniz-lib.de
>
>
>
> --
> Stiftung Leibniz-Institut zur Analyse des Biodiversitätswandels
> Postanschrift: Adenauerallee 127, 53113 Bonn, Germany
>
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> Grüter (Kaufm. Geschäftsführer)
> Sitz der Stiftung: Adenauerallee 160 in Bonn
> Vorsitzender des Stiftungsrates: Dr. Michael Wappelhorst
>
>
> --
> Stiftung Leibniz-Institut zur Analyse des Biodiversitätswandels
> Postanschrift: Adenauerallee 127, 53113 Bonn, Germany
>
> Stiftung des öffentlichen Rechts;
> Generaldirektion: Prof. Dr. Bernhard Misof (Generaldirektor), Adrian
> Grüter (Kaufm. Geschäftsführer)
> Sitz der Stiftung: Adenauerallee 160 in Bonn
> Vorsitzender des Stiftungsrates: Dr. Michael Wappelhorst
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-- 
Mare Nazaire, Ph.D.
Administrative Curator, Herbarium [RSA-POM]
California Botanic Garden
Research Assistant Professor, Claremont Graduate University
1500 North College Avenue
Claremont, California 91711
909.625.8767 ext. 268
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