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Explosion Sensitivity

Does an on-site hazardous material have the potential to combust? If so, how do employers determine this?

29 CFR 1910.109 details explosives and blasting agents. The standard states that the term "explosives" includes (but is not limited to) the following:

  • Dynamite
  • Black powder
  • Pellet powders
  • Initiating explosives
  • Blasting caps
  • Electric blasting caps
  • Safety fuses
  • Fuse lighters
  • Fuse igniters
  • Squibs
  • Cordeau detonant fuse
  • Instantaneous fuse
  • Igniter cords
  • Igniters
  • Small arms ammunition
  • Small arms ammunition primers
  • Smokeless propellant
  • Cartridges for propellant-actuated power devices
  • Cartridges for industrial guns

The standard additionally states that commercial explosives are those which "are intended to be used in commercial or industrial operations."

Certain chemicals may also be prone to explosion. For this reason, OSHA requires the proper labeling of all chemicals, mixtures, and compounds. Refer to 29 CFR 1910.109 for more information on OSHA's required pictograms and which ones indicate explosive properties.

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