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How frequently must pharmaceutical equipment be re-passivated?

In the pharmaceutical industry, passivation of stainless steel vessels has been a standard. Is there any recommendations for how often passivation should be performed?

Bill Reilley
user of vessels - Monmouth Junction , New Jersey
May 13, 2010

Dear Mr. Reilly,

It is important to ensure the passivation quality of the SS vessels and reactors periodically.

Some meters are available in the market to check the passivation quality.

T.S.N. Sankara Narayanan
- Chennai, Tamilnadu, India
(ed.note Nov. 2017: The good doctor has a fascinating blog at https://advancementinscience.wordpress.com)
June 4, 2010

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