WAC 296-307-41005. Definitions that apply to this part

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.