GOST R 12.4.231-2007 Occupational safety standards system. Respiratory protective devices. AX gas filters and combined filters for protection against low-boiling organic compounds. General specifications
GOST 29329-1992 Balance for static weighing. General technical requirements
GOST R 12.4.191-1999 Occupational safety standards system. Respiratory protective devices. Filtering half masks to protective against particles. General specifications
GOST R 12.4.194-1999 Occupational safety standards system. Respiratory protective equipment. Particles filters. General specifications
GOST R 12.4.214-1999 Occupational safety standards system. Respiratory protective equipment. Thread for facepieces. Standard thread connection
GOST R 12.4.231-2007 history
2007GOST R 12.4.231-2007 Occupational safety standards system. Respiratory protective devices. AX gas filters and combined filters for protection against low-boiling organic compounds. General specifications