GOST R 12.4.234-2007 Occupational safety standards system. Protective clothing for thermal hazards of an electric arc. General technical requirement and test methods
2012GOST R 12.4.234-2012 Ococcupational safety standards system. Protective clothing for thermal hazards of an electric arc. General technical requirement and test methods
2007GOST R 12.4.234-2007 Occupational safety standards system. Protective clothing for thermal hazards of an electric arc. General technical requirement and test methods