Occupational safety standards system. Industrial filtering gas masks and respirators. Nephelometric methods for determination of penetration coefficient of oil mist under the face part
STANDARD published on 1.1.1976
Designation standards: GOST 12.4.157-75
Publication date standards: 1.1.1976
The number of pages: 6
Approximate weight : 18 g (0.04 lbs)
Country: Russian technical standard
Category: Technical standards GOST
Implemented changes and corrections:
Amd. 11.80
Amd. 8.85
Amd. 9.90