Or. Admin. R. 437-004-1450
NOTE: The Oregon Office of State Fire Marshal and local fire authorities also have rules that apply to portable fire extinguishers.
(1) Provide the class of fire extinguishers designed for use on the class of fire potential in the work area.
NOTE: To make it easy to use the right extinguisher, the NFPA 10 Extinguisher Standard uses the following system of classification: Class A: Fires of ordinary combustible materials (such as wood, cloth, paper, rubber, and many plastics) requiring the heat-absorbing (cooling) effects of water, water solutions or the coating effects of certain dry chemicals that retard burning. Class B: Fires of flammable liquids, flammable gases, grease and similar materials where extinguishment is best done by excluding air (oxygen), inhibiting the release of combustible vapors or interrupting the combustion chain reaction. Class C: Fires of energized electrical equipment where safety to the operator requires the use of electrically nonconductive extinguishing agents. (Note: For nonenergized electrical equipment, Class A or B extinguishers may be best.) Class D: Fires of certain combustible metals, such as magnesium, titanium, zirconium, sodium, potassium, etc., requiring a heat-absorbing extinguishing medium not reactive with the burning metals.
(7) Do not use fire extinguishers with carbon tetrachloride, chlorobromomethane or other toxic vaporizing fluids.
[ED. NOTE: Tables referenced are available from the agency.]
[Publications: Publications referenced are available from the agency.]
[ED. NOTE: To view attachments referenced in rule text, click here for PDF copy.]
ORS 654.025(2) & 656.726(4)
ORS 654.001 - 654.295
OSHA 3-2014, f. & cert. ef. 8-8-14
OSHA 4-1998, f. 8-28-98, cert. ef. 10-1-98