BS EN ISO 14644-8:2013
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Cleanrooms and associated controlled environments Classification of air cleanliness by chemical concentration (ACC)
Hardcopy , PDF
13-07-2022
English
28-02-2013
This part of ISO14644 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 ISO14644 currently considers only concentrations of air chemical contaminants between 100 and 10−12g/m3 under cleanroom operational conditions.
This part of ISO14644 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 part of ISO14644 to describe the nature of air chemical contaminants.
This part of ISO14644 does not give a classification of surface chemical contamination.
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