R 408.41838 Definitions; L to V.

Rule 1838. (1) "Liquefied petroleum gas," "L.P.G.," or "L.P. gas" means any material that is composed predominately of any of the following hydrocarbons or mixtures of hydrocarbons: (a) Propane. (b) Propylene. (c) Butane. (d) Isobutene. (e) Butylene. (2) "Means of egress" means a continuous path of travel from any part within a building to the open air outside at ground level. (3) "Portable tank” means a closed container that has a liquid capacity of more than 60 United States gallons, which is not intended for fixed installation. (4) "Safety can" means an approved metal or nonmetallic closed container that has a capacity of not more than 5 gallons, that has a flash-arresting screen, spring-closing lid and spout cover, and that is designed so that it will safely relieve internal pressure when exposed to fire. (5) "Temporary building" means a structure erected or placed for a period not longer than the project construction time. (6) "Temporary heating device" means a heating unit to provide heat for a period not longer than the project construction time. (7) "Vapor pressure" means the pressure, measured in pounds per square inch (absolute), exerted by a volatile liquid.