[NHCOLL-L:3503] RE: Neoprene rubber stoppers

[Furth, David]

FYI: Neoprene stoppers are not archival

 

******************************************************

David G. Furth, Ph.D.

Department of Entomology

MRC 165, P.O. Box 37012

National Museum of Natural History

Smithsonian Institution

Washington, D. C. 20013-7012  USA

Phone: 202-633-0990

Fax: 202-786-2894

Email: furthd at si.edu

Website: www.entomology.si.edu 

________________________________

From: owner-nhcoll-l at lists.yale.edu
[mailto:owner-nhcoll-l at lists.yale.edu] On Behalf Of Brad Hubley
Sent: Wednesday, July 25, 2007 10:54 AM
To: Entomology Discussion List; NHCOLL-L at lists.yale.edu
Subject: [NHCOLL-L:3502] Neoprene rubber stoppers

 

Hi all;

 

I'm searching for a supplier of neoprene rubber stoppers for our glass
vials.  We used to purchase our stoppers from West Pharmaceutical but
have been told that they no longer supply them.  I have tried a number
of other sources (Plasticoid, VWR Scientific, BioQuip, etc.) but have
come up short, mainly because the length of our stoppers are what is
proving to be problematic.  The dimensions of our stoppers are 16 mm top
diameter x 12 mm bottom diameter x 20 mm length and the samples I have
been provided are 25 mm in length (or longer).  (If you need to see what
kind of stoppers I'm talking about then go to
http://www.vwrcanlab.com/catjpg/y01/y0155.jpg).  I'm concerned that if I
go with the longer stoppers, that the bottom of the stoppers will expand
in the vials over time making them almost impossible to get back into
the vials (we've encountered this on a regular basis with stoppers that
are pushed too far into vials).

 

If you have any suggestions as to suppliers, could you please let me
know?

 

Many thanks,

Brad

 

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
  Brad Hubley
  Entomology Collection Manager
  Department of Natural History
  Royal Ontario Museum
  100 Queen's Park, Toronto, Ontario           
  Canada    M5S 2C6

 

  Phone:  1-416-586-5764 
  FAX:      1-416-586-5553 
  email:  bradh at rom.on.ca 
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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