Gas Cylinder Handling Safety Training, Module 11

Appendix A - Chemical Compatibility

Gas Hazard Category Non-flammable Oxidizing Flammable Pyrophoric Toxic
Toxic C 20 ft 20 ft 20 ft -
Pyrophoric C 20 ft 20 ft - 20 ft
Flammable C 20 ft - 20 ft 20 ft
Oxidizing C - 20 ft 20 ft 20 ft
Non flammable - C C C C
  • Non-flammable: NFPA fire rating (red) 0
  • Oxidizing: NFPA special rating (white) OX
  • Flammable: NFPA fire rating 3 and 4
  • Pyrophoric: Gases that will be spontaneously ignite in air at or below a temperature of 130°F.
  • Toxic: NFPA health rating (blue) 3 and 4
Top