BS EN ISO 14644-1:2015
Cleanrooms and associated controlled environments. Classification of air cleanliness by particle concentration
https://doi.org/10.3403/30152866 (published 31/01/2016)
BS EN ISO 14644-1:2015 is maintained by LBI/30. This standard is available from the following sources:
Other historical versions of this standard document also exist:
- BS EN ISO 14644-1:1999 [current until 31/01/2016]