Occupational safety standards system. Respiratory protective devices. Gas filters and combined filters of large external dimensions. General specifications
STANDARD published on 1.9.2020
Designation standards: GOST 12.4.122-2020
Publication date standards: 1.9.2020
The number of pages: 15
Approximate weight : 45 g (0.10 lbs)
Country: Russian technical standard
Category: Technical standards GOST
Implemented changes and corrections:
Amd. 12.21
Amd. 7.23