Particulate air filters for general ventilation. Requirements, testing, marking.
NORMA vydána dne 15.10.1993
Designation standards: BS EN 779:1993
Note: NEPLATNÁ
Publication date standards: 15.10.1993
The number of pages: 30
Approximate weight : 90 g (0.20 lbs)
Country: British technical standard
Kategorie: Technické normy BS