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December 2003


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The Pharmaceutical Microbiology Forum Email List <[log in to unmask]>
Fri, 12 Dec 2003 12:50:39 -0600
text/plain (70 lines)

In your email, you mention that you would be suppling a compressed gas
mixture through the tubing.  Teflon is an extremely porous material so you
would need to confirm that none of the gases are able to escape through the
tubing sidewall.  Obviously, the longer the tubing, the more of a problem
this would become.

Daniel P. Guertin
Research Specialist, Pharmaceutical Services
3M Pharmaceuticals, 3M Center, Bldg 260-06A-026
St. Paul, MN  55144-1000
Tel: 651/733-7307   Fax: 651/575-3078
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                                To:       [log in to unmask]
                                                 [log in to unmask]
                      12/11/2003 04:48         cc:
                      PM                       Subject:  Teflon tubing versus stainless steel piping

Does anyone have any experience with Teflon tubing used for suppling a
compressed gas mixture to a product versus stainless steel piping?  I am
looking basically at microbial, durability, ability to withstand a liquid
nitrogen flush or ETO/Steam sterilization.  I am only asking because we of
course are trying to save money but do not want to create any issues with
out product.

Gayle Shaw
QE Validation Microbiologist
Cryolife, Inc

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