BS EN ISO 14644-8:2022
Cleanrooms and associated controlled environments. Assessment of air cleanliness by chemical concentration (ACC)
- Standard No.
- BS EN ISO 14644-8:2022
- Release Date
- 2022
- Published By
- British Standards Institution (BSI)
- Latest
- BS EN ISO 14644-8:2022
- Scope
- 1 Scope 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 10 0 g/m 3 and 10 −12 g/ m 3 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 .
BS EN ISO 14644-8:2022 history
- 2022 BS EN ISO 14644-8:2022 Cleanrooms and associated controlled environments. Assessment of air cleanliness by chemical concentration (ACC)
- 2013 BS EN ISO 14644-8:2013 Cleanrooms and associated controlled environments. Classification of air cleanliness by chemical concentration (ACC)
- 0000 BS EN ISO 14644-8:2006
