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High efficiency air filters (HEPA and ULPA). Classification, performance testing, marking.
STANDARD published on 15.11.1998
Designation standards: BS EN 1822-1:1998
Note: WITHDRAWN
Publication date standards: 15.11.1998
SKU: NS-88435
The number of pages: 16
Approximate weight : 48 g (0.11 lbs)
Country: British technical standard
Category: Technical standards BS
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