OSHA General Industry Standards (29 CFR Part 1910)
Subpart L: Fire Protection – OSHA General Industry Standards (29 CFR Part 1910)

OSHA General Industry Standards (29 CFR Part 1910) 1910.157: 1910.157 Portable fire extinguishers

Applies to the placement, use, maintenance and testing of portable fire extinguishers provided for employee use; distribution paragraph (d) does not apply to extinguishers for use outside buildings. Where extinguishers exist but are not intended for employee use and the employer has an emergency action plan and fire prevention plan meeting 1910.38 and 1910.39, only paragraphs (e) and (f) apply. Exemptions: an employer with a written fire safety policy requiring immediate total evacuation on alarm, with those plans and no extinguishers in the workplace, is exempt from the whole section unless another standard requires an extinguisher; where the emergency action plan designates the only employees authorized to use extinguishers and requires everyone else to evacuate, the distribution requirements do not apply. General: extinguishers must be provided, mounted, located and identified so they are readily accessible without risk of injury; only approved units may be used; carbon tetrachloride and chlorobromomethane units are prohibited; units must be fully charged, operable and in their places; and inverting-type soda acid, self-generating foam and gas cartridge water units with soldered or riveted shells must be removed. Selection and distribution follow the classes and size of anticipated fires: travel distance of 75 feet (22.9 m) or less to Class A extinguishers (uniformly spaced standpipe or hose stations may substitute if they meet 1910.158 or 1910.159, cover the whole area and employees are trained annually), 50 feet (15.2 m) or less for Class B, Class C based on the Class A or B pattern, and 75 feet or less to Class D agent in combustible metal areas where powders, flakes, shavings or similar are generated at least once every two weeks. Inspection, maintenance and testing: monthly visual inspection; an annual maintenance check (no internal exam for stored pressure units) with the date recorded and kept for one year after the last entry or the life of the shell, whichever is less; stored pressure dry chemical units needing a 12-year hydrostatic test emptied and maintained every 6 years; and alternate equivalent protection while units are out of service. Hydrostatic testing by trained persons with suitable equipment at Table L-1 intervals (5 years for stainless steel soda acid and foam, cartridge operated and stored pressure water, wetting agent, AFFF, loaded stream, stainless steel dry chemical and carbon dioxide; 12 years for mild steel, brazed brass or aluminum stored pressure dry chemical, cartridge dry chemical and dry powder, Halon 1211 and 1301), not on units that are repaired by soldering or welding, have damaged threads, pitting corrosion, fire damage or calcium chloride in stainless shells, and whenever new corrosion or injury appears; with internal examination first; hose assemblies at the unit's interval (CO2 at 1,250 psi in a protective cage, dry chemical at 300 psi); CO2 and wheeled-unit cylinders every 5 years at 5/3 of service pressure; stored pressure and Halon 1211 at factory test pressure not over twice service pressure; soda acid and foam at 350 psi; never with air or gas; failed shells removed; and certification records (date, tester signature, serial number) kept until the next test or removal. Education on extinguisher use and incipient fire hazards is required on initial employment and at least annually; employees designated in the emergency action plan to use fire fighting equipment must be trained in that equipment on initial assignment and at least annually.

Maintained by Gerard Blokdyk

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  • 262.252 § 262.252 Required equipment
  • 264.32 § 264.32 Required equipment

Every mapping shown was judged rather than inferred from wording similarity, and the ones that failed review are published too. See the coverage reports and what was rejected.

Other controls in Subpart L: Fire Protection – OSHA General Industry Standards (29 CFR Part 1910)

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