RE: Expiry dates

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From:"Hagerty, Marjorie A." <>
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We used to put n/a on dry chemicals that came without an expiration date and
that were very stable. Fearful that one of our regulating bodies would not
like that idea, we now mark them with a ten year expiration date and
re-evaluate their efficacy after that time, extending the date if all is

That's what this lab does!

Eisenhower Medical Center
39-000 Bob Hope Drive
Rancho Mirage, CA 92270


Dear Friends. We are attempting to become GLP compliant, and was wondering
how others handled expiry dates on the dry powder biological stains which
in most part are very stable.  Help would be appreciated. Thanks Marlene

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