High efficiency air filters (EPA, HEPA and ULPA) - Part 4: Determining leakage of filter elements (scan method)
NORMA vydána dne 21.7.2010
Designation standards: UNE-EN 1822-4:2010
Note: NEPLATNÁ
Publication date standards: 21.7.2010
The number of pages: 45
Approximate weight : 135 g (0.30 lbs)
Country: Spanish technical standard
Kategorie: Technické normy UNE