
Specification for full face mask assemblies for use in contaminated atmospheres.
NORMA vydaná dňa 28.2.1974
Designation standards: BS N 4:1974
Note: NEPLATNÁ
Publication date standards: 28.2.1974
The number of pages: 10
Approximate weight : 30 g (0.07 lbs)
Country: British technical standard
Kategória: Technické normy BS