NEN-EN-ISO 14644-1
Cleanrooms and associated controlled environments - Part 1: Classification of air cleanliness
| Organization: | NEN |
| Publication Date: | 1 June 1999 |
| Status: | inactive |
| Page Count: | 28 |
| ICS Code (Medical microbiology): | 07.100.10 |
| ICS Code (Cleanrooms and associated controlled environments): | 13.040.35 |
scope:
Covers the classification of air cleanliness in cleanrooms and associated controlled environments. Classification in accordance with this standard is specified and accomplished exclusively in terms of concentration of airborne particles. Furthermore, the only particle populations considered for classification purposes are those having cumulative distributions based on threshold (lower limit) sizes ranging from 0,1 µm to 5 µm. Classification of air cleanliness in cleanrooms and clean zones may be accomplished in any of three occupancy states.
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