Section R. 408.40706 - Definitions; D to NRule 706.
(1) "DC" means direct current.(2) "Fire resistance" means the property of a material or assembly to withstand fire or give protection from it.(3) "Fuel gas" means a gas, such as acetylene and propane, that is used to generate heat to perform a welding operation.(4) "Gas welding" means a process for joining metals by heating with a gas flame with or without the use of pressure and with or without the use of a filler material.(5) "Inert gas" means argon, carbon dioxide, helium, or nitrogen gas.(6) "Manifold" means an assembly of pipe and fittings to interconnect either single or multiple sources of fuel gas or oxygen to single or multiple outlets.(7) "Noncombustible" means having properties that do not support combustion.Mich. Admin. Code R. 408.40706