[Nhcoll-l] glass storage for fluid collections

Mon Sep 9 02:31:03 EDT 2019

I’m working with these borosilicate jars very intensively and I really can’t complain so much. It’s true that they are very thin and that this was not the aim when it was sent to production. But still it’s much better than regular soda-lime jars (because it borosilicate). The producer is called Vitro. It’s a small German company that makes Laser imprinting… Somehow a colleague got them to produce museum jars. This thin jars are the result, they still need improvement (specially the thin bottom), but in my opinion, it’s the beginning for a new museum jar. Where else can you get long jars up to 40 cm with Twist off opening off 82mm or 100mm.?
Maybe some other company could take the effort to produce the same jars in better quality?

Cheers from Bern,
--
Fabian Neisskenwirth
Präparation
Naturwissenschaftlicher Präparator

+41 (0)31 350 72 35
NATURHISTORISCHES MUSEUM BERN
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Von: Nhcoll-l [mailto:nhcoll-l-bounces at mailman.yale.edu] Im Auftrag von Dirk Neumann
Gesendet: Sonntag, 8. September 2019 17:30
An: nhcoll-l at mailman.yale.edu
Betreff: Re: [Nhcoll-l] glass storage for fluid collections

A bit late, but I agree with John; we have recently seen borosilicate twist-off jars which are apparently produced in China and are rather expensive compared when the enter the market in Europe - compared to normal (soda-lime) glass jars used produced for food industry. The main issue is (and John likely referred to this) that the glass wall especially at the bottom of some those jars was very very thin, leading to spontaneous cracking of jars when filled and lifted up or after jars where placed on shelves in the storage area.

All the best
Dirk

Am 05.09.2019 um 21:07 schrieb John E Simmons:
It is important to find out where the glass is manufactured, and make sure they send you a sample of each size to test. There is a lot of glassware entering the market from China and other countries that is not properly annealed and thus much more fragile than the soda-lime glass we are all used to.

--John

John E. Simmons
Writer and Museum Consultant
Museologica
and
Associate Curator of Collections
Earth and Mineral Science Museum & Art Gallery
Penn State University
and
Investigador Asociado, Departamento de Ornitologia
Museo de Historia Natural, Universidad Nacional Mayor de San Marcos, Lima

On Thu, Sep 5, 2019 at 2:22 PM Gartner, Heidi RBCM:EX <HGartner at royalbcmuseum.bc.ca<mailto:HGartner at royalbcmuseum.bc.ca>> wrote:

Hello,

I’ve recently sourced a new potential provider for glass jars for our fluid collection.  However, the cost is so cheap I am suspect of the quality of the jars.  I’ve asked them to send some spec sheets and I am wondering what the best features for long term storage that I should look for?  Is soda lime glass acceptable?

Thank you for the feedback or direction to recent resources!

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