Monday 25 July 2022

USP revises microbiology best practices chapter


The USP microbiology committee has undertaken a review and revision of the ‘Microbiology Laboratory Best Practices’ chapter USP <1117>. The new chapter came into effect on 1st August 2022. There are a number of changes within the chapter, for which the biggest update relates to the manufacture and use of culture media. Other sections of importance include the necessity to assess samples for low endotoxin recovery where endotoxin testing is required. This article reviews and discusses the changes, to highlight the changes for the laboratory manager and auditors of microbiology laboratories to evaluate.


Sandle, T. (2022) USP revises microbiology best practices chapter, Pharmig News, Issue 88, pp10-13


Posted by Dr. Tim Sandle, Pharmaceutical Microbiology Resources (

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