Adequate ventilation (for fire prevention during normal operation). The concentration of the gas in a gas-air mixture does not exceed 25% of the lower flammable limit.
Containers. All vessels, such as tanks, cylinders, or drums, used to transport or store LP-gases.
DOT. The federal Department of Transportation.
DOT container. A container that meets DOT regulations.
DOT cylinder. A cylinder that meets DOT regulations.
DOT regulations/requirements/specifications. The DOT regulations of 49 C.F.R. Part 178.
Liquefied petroleum gases and LP-gas. Any material that is composed mostly of any of the following: Hydrocarbons, or mixtures of them; propane; propylene; butanes (normal butane or iso-butane); and butylenes.
PSIA. Pounds per square inch absolute.
PSIG. Pounds per square inch gauge.
Systems. An assembly of the container or containers, major devices such as vaporizers, safety-relief valves, excess flow valves, regulators, and piping connecting such parts.
Vaporizer-burner. An integral vaporizer-burner unit, dependent upon the heat generated by the burner to vaporize the liquid used for dehydrators or dryers.
[Statutory Authority: RCW
49.17.010,
49.17.040,
49.17.050, and
49.17.060. WSR 20-21-091, § 296-307-41005, filed 10/20/20, effective 11/20/20. WSR 97-09-013, recodified as § 296-307-41005, filed 4/7/97, effective 4/7/97. Statutory Authority: RCW
49.17.040, [49.17.]050 and [49.17.]060. WSR 96-22-048, § 296-306A-41005, filed 10/31/96, effective 12/1/96.]