High efficiency air filters (EPA, HEPA and ULPA). Part 4. Determining leakage of filter elements (scan method)
STANDARD published on 1.12.2013
Designation standards: GOST R EN 1822-4-2012
Note: WITHDRAWN
Publication date standards: 1.12.2013
The number of pages: 36
Approximate weight : 108 g (0.24 lbs)
Country: Russian technical standard
Category: Technical standards GOST