FAQs / What fire extinguishers are considered obsolete by NFPA-10 2007?

  • The following types of fire extinguishers are considered obsolete and shall be removed from service:
    • Soda acid
    • Chemical foam (excluding film-forming agents)
    • Vaporizing liquid (e.g., carbon tetrachloride)
    • Cartridge-operated water
    • Cartridge-operated loaded stream
    • Copper or brass shell (excluding pump tanks) joined by soft solder or rivets
    • Carbon dioxide extinguishers with metal horns
    • Solid charge type AFFF extinguishers (paper cartridge)
    • Pressurized water extinguishers manufactured prior to 1971
    • Any extinguisher that needs to be inverted to operate
    • Any stored pressure extinguisher manufactured prior to 1955
    • Any extinguisher with 4B, 6B, 8B, 12B, and 16B fire ratings
    • Stored pressure water extinguishers with fiberglass shells (pre-1976)
  • Dry chemical stored pressure extinguishers manufactured prior to October 1984 shall be removed from service at the next 6-year maintenance interval or the next hydrostatic test interval, whichever comes first.
  • Any fire extinguisher that can no longer be serviced in accordance with the manufacturer’s maintenance manual is considered obsolete and shall be removed from service.

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