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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
SKU: NS-378999
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
1.1.1976
1.1.1991
1.1.1991
1.1.1991
1.1.1976
WITHDRAWN
1.1.1987
Latest update: 2024-07-18 (Number of items: 2 337 971)
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