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Laboratory Tips Safety proceedures, test reagents, drilling rubber stoppers, bending glass tubes, etc. Contributed to by chemists.

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 excerpt 1 of 2 
Old 2004-04-05 06:52
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California
Default Pseudo Shelf Life

Partial excerpt recovered from a real site search result - not the full post.
Switrd accidently found some old psuedo that was already about 4 months old. It was sealed nicely in a couple of ziplocks. Works fine. He has not seen any real changes...even after he himself had...
 excerpt 2 of 2 
Old 2004-04-05 07:41
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California
Default Re: Pseudo Shelf Life

Partial excerpt recovered from a real site search result - not the full post.
See....there's another side to this. That's interesting though.
 
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