This standard applies to self-contained breathing apparatus with an open breathing circuit intended for the protection of
GOST R 12.4.186-1997 history
2012GOST R 12.4.186-2012 Occupational safely standards system. Respiratory individual protective devices. Closed-circuit breathing apparatus compressed air type. Technical requirements. Test methods. Marking. Simples selection rules
1997GOST R 12.4.186-1997 Occupational safety standards system. Air breathing self-contained apparatus. General technical requirements and testing methods