Occupational safely standards system. Respiratory protective devices. Gas filters and combined filters. General technical requirements. Test methods. Marking
STANDARD published on 1.9.2020
Designation standards: GOST 12.4.235-2019
Publication date standards: 1.9.2020
The number of pages: 26
Approximate weight : 78 g (0.17 lbs)
Country: Russian technical standard
Category: Technical standards GOST
Implemented changes and corrections:
Amd. 8.20
Amd. 7.23