Microbiological Testing of purified Water - FDA.COMs Community Forums

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Post: Microbiological Testing of purified Water (Topic#4065)

fanyunling
Beginner
Posts: 1

12-16-08 11:28 PM - Post#5211

Hi All!
Do the positive contrast be essential in the Microbiological Testing(total aerobic microbial count) of purified Water?

In my opinion, it is needless.

Thank you very much.

JohanJ
Member
Posts: 229
JohanJ

02-10-09 01:49 AM - Post#5519

In response to fanyunling

Most of us need to test conform the USPh and/or EUPh.
I don't recollect that anything about contradzst colouring is mentioned in there.
We only perform GRAMM colouring when we have growth on our enterobacteraecea test.

Johan Janssens
Mobile: +32 498 68 29 56
e-mail: johan.janssens@qualiphar.com

rajesh jadhav
Beginner
Posts: 8

04-13-09 10:08 PM - Post#5561

In response to fanyunling

why u thinks needless ?