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March 2020

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Subject:
From:
Sherie Poulson-Cook <[log in to unmask]>
Reply To:
The Pharmaceutical Microbiology Forum Email List <[log in to unmask]>
Date:
Fri, 6 Mar 2020 14:43:40 -0500
Content-Type:
text/plain
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text/plain (44 lines)
Question for the collective:

In our micro lab we are trying to validate a TVC method for a liquid per 
USP 61. USP 61 specifies under the recovery of microorganisms section for 
membrane filtration that the material filtered should represent 1 g of the 
product. However, under the "Amount Used for the Test" section it sates 
that "unless otherwise directed, use 10 g or 10 mL of the product to be 
examined."   Would we be justified in only filtering 1 mL of product per 
the first statement? \

Regards,
Sherie


Sherie Poulson-Cook



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