UL 147

This new edition is a periodic re-issuance to ensure that UL’s Standards remain up-to-date with regard to format and editorial issues such as renumbering, repaginating, and correction of editorial errors. Revisions based on the bulletin dated October 14, 2004 are included in this new edition. This new edition also updates the title page to indicate the standard has been approved as an American National Standard.

1 Scope

1.1 These requirements cover hand-held torches of the air aspirating type for operations such as heating, soldering, and brazing.

1.2 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.

1.2 revised February 10, 2005

1.3 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.

1.4 Torches covered by these requirements may incorporate integral container assemblies which may be refillable.

1.5 LP-Gas torches are intended for use in accordance with the Liquefied Petroleum Gas Code, NFPA 58-2004.

1.5 revised February 10, 2005

1.6 These requirements do not cover torches that incorporate a hose assembly or are for use with refillable containers greater than 2.71 pound (1.23 kg) water capacity.