Air cleanliness class
Clean space unit volume of air, with greater than or equal to the maximum concentration of particles considered particle size limit value for the division of the class standard. Domestic testing and acceptance of clean room according to empty state, static state, dynamic, in line with "GB50073-2013 Clean Plant Design Code", "GB50591-2010 Clean Room Construction and Acceptance Code".
ISO 14644 International Standard

China GPM (revised 2010)

