Expiration Date

From:"DeLovino, Salvacion S."

	Hello Histonetters:

	What's the usual shelf life of most chemicals and dyes when the
expiration dates are not indicated on the container? We have a whole lot of
old chemicals and dyes that we don't know if they're still good or not. Some
date back to the 60's! Thanks in advance.

	Salvacion S. Delovino

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