These requirements cover hand-held torches of the air aspirating type for operations such as heating@ soldering@ and brazing.Torches covered by these requirements are intended to operate on commercial grade fuel gases other than acetylene as defined in the Standard for Design and Installation of Oxygen-Fuel Gas Systems for Welding@ Cutting@ and Allied Processes@ NFPA 51-2002.Torches covered by these requirements are intended for direct connection to disposable containers covered in the Standard for Nonrefillable (Disposable) Type Fuel Gas Cylinder Assemblies@ UL 147A@ Standard for Nonrefillable (Disposable) Type Metal Container Assemblies for Butane@ UL 147B@ or similar type disposable containers@ or as covered by 1.4.Torches covered by these requirements may incorporate integral container assemblies which may be refillable.LP-Gas torches are intended for use in accordance with the Liquefied Petroleum Gas Code@ NFPA 58-2004.Torches covered by these requirements shall be permitted to incorporate a hose assembly and shall be permitted to be used with refillable containers greater than 2.71 pound (1.23 kg) water capacity.