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Cleanrooms and associated controlled environments - Part 8: Assessment of air cleanliness by chemical concentration (ACC)
This document establishes typical assessment processes to determine grading levels 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 for their determination.
This document currently considers only concentrations of air chemical contaminants between 100 g/m3 and 1012 g/m3 under cleanroom operational conditions.
This document is not relevant for application in those industries, processes or productions where the presence of airborne chemical substances is not considered a risk to the product or process.
It is not the intention of this document to describe the nature of air chemical contaminants.
This document does not give a classification of surface chemical contamination.
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