Occupational safety standards system. Means for individual protection of breathing organs. Methods of testing all-service canisters protection time against noxious vaporous contaminants
STANDARD published on 1.1.1991
Designation standards: GOST 12.4.158-90
Publication date standards: 1.1.1991
The number of pages: 9
Approximate weight : 27 g (0.06 lbs)
Country: Russian technical standard
Category: Technical standards GOST