[NHCOLL-L:4181] Re: Large glass jars and closures

[Neumann Dirk]

Hi Chris,

similar problems here in Europe. One of the last providers of larger 
glasses for natural history collections, Stölzle Oberglas from Austria, 
seem to have stopped production of glasses with ground stoppers. 
Confronted with the situation that we had to store approx. 120 kg of 
deep sea sharks with up to 1 m length, we have been lucky in finding a  
company specialised in producing chemical glassware components (such as 
dessicators, condensers, etc.). For production of our large glass 
containers (up to 1200 mm hight and diameter of 250 mm), Schott Duran 
glass tubes (borosilicate glass) are used, which are available up to an 
diameter of 250 mm. Glasses made from these glass tubes look like a big 
beaker closed with a flat grounded glass pane on a surface grinding. 
With this technique, glasses of all sizes are possible, avoiding bottle 
necks and cracking plastic liners.

Pricing is comparable to "normal" ground glasses, e.g. a glass with 130 
mm diameter and a hight of 400 mm costs ca. 75,- Eur (approx. 100,- U$).

I will copy you the homepage of our German provider so you get an idea, 
surely there are similar companies in Canada as well.
http://www.ggm-glastechnik.de/1280/start1280.htm

Hope this helps

Dirk



Chris Stinson schrieb:
> Hi,
>
> I was wondering if anyone could give me a source for glass jars larger 
> than 1gal, preferably 3-6gal sizes with wide mouths(130mm).  Also if 
> anyone could point me in the direction of closures for such jars - 
> ideally polypropylene with polyethylene liners.  These will be used to 
> house fluid preserved fish specimens.  If there are any ideas for 
> glass jars or other types of containers  of similar size to 5 or 6 
> gal  glass jars with wider mouths any info would also be 
> appreciated.   I have already  found some polycarbonate containers 
> from University Products but I'm not sure of their long term viability.
>
> Thanks
> Chris Stinson
> Assistant Curator
> Beaty Biodiversity Museum, UBC
> Vancouver, BC
>


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Dirk Neumann

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Fax: +49-89-8107-300
email: Dirk.Neumann at zsm.mwn.de

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