EN ISO 14644-1:1999
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Cleanrooms and associated controlled environments - Part 1: Classification of air cleanliness (ISO 14644-1:1999)
30-11-1999
01-05-1999
This Part of this European Standard specifies the classification of particulate cleanliness for cleanrooms and clean air controlled spaces in three possible occupancy states according to the number concentration of airborne particulate matter present.
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