ISO 14644-1:2015

ISO 14644-1:2015 is an international standard that provides specifications for the classification of air cleanliness in cleanrooms and controlled environments. The standard outlines the requirements for air cleanliness in terms of the maximum allowable concentration of particles in the air, based on the size of the particles. It also provides guidance on the methods of testing and monitoring air cleanliness, as well as the requirements for the design, construction, and operation of cleanrooms and cleanroom facilities.

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