Saturday, 29 February 2020

Changes to ISO 14644-3:2019

ISO 14644-3:2019 is the second edition of the standard devoted to cleanroom and associated controlled environment tests, and it revises the 2005 version of the same international standard. Notably, Clause B.7, “Installed filter system leakage test,” was simplified, as there previously were concerns over its complexity. Furthermore, all guidance concerning classification of air cleanliness by airborne particle concentration that was found in the 2005 edition of ISO 14644 has been reserved for ISO 14644-1.


Posted by Dr. Tim Sandle, Pharmaceutical Microbiology Resources (

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