Customer Service:
Mon - Fri: 8:30 am - 6 pm EST

 Most recent

ISO 14644-8:2022

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 10 12 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.

Content Provider
International Organization for Standardization [iso]

Others Also Bought

ISO 14644-10:2022
Cleanrooms and associated controlled environments - Part 10: Assessment of surface cleanliness for chemical co ...
ISO 14644-15:2017
Cleanrooms and associated controlled environments - Part 15: Assessment of suitability for use of equipment and ...
ISO/IEC 17025:2017
General requirements for the competence of testing and calibration laboratories

As the voice of the U.S. standards and conformity assessment system, the American National Standards Institute (ANSI) empowers its members and constituents to strengthen the U.S. marketplace position in the global economy while helping to assure the safety and health of consumers and the protection of the environment.