This part of ISO 14644 establishes the classification of air chemical cleanliness (ACC) in cleanrooms and associated controlled environments, in terms of airborne concentrations of specific chemical substances (individual, group or category) and provides a protocol to include test methods, analysis and time-weighted factors within the specification for classification. This part of ISO 14644 currently considers only concentrations of air chemical contaminants between 100 and 10−12 g/m3 under cleanroom operational conditions.This part of ISO 14644 is not relevant for application in those industries, processes or productions where the presence of airborne chem
EN ISO 14644-8:2013 Referenced Document
ISO 14644-6:2007 Cleanrooms and associated controlled environments - Part 6: Vocabulary
EN ISO 14644-8:2013 history
2022EN ISO 14644-8:2022 Cleanrooms and associated controlled environments - Part 8: Assessment of air cleanliness by chemical concentration (ACC) (ISO 14644-8:2022)
2013EN ISO 14644-8:2013 Cleanrooms and associated controlled environments - Part 8: Classification of air cleanliness by chemical concentration (ACC)
2006EN ISO 14644-8:2006 Cleanrooms and associated controlled environments - Part 8: Classification of airborne molecular contamination