Acetylene is the most common gas used for fueling cutting torches; when mixed with pure oxygen in a cutting torch assembly, an acetylene flame can theoretically reach more than 5,700 degrees F. If you use acetylene for cutting, you probably know about the fire hazards associated with the flame and hot slag. Acetylene is also sensitive to excessive pressure and temperature, static electricity, and mechanical shock.
Acetylene can decompose violently under pressure in excess of 15 pounds per square inch. Always store acetylene cylinders in a well-ventilated area away from oxidizers, open flames, sparks, and other sources of heat or ignition. Storage areas must have fire extinguishers or fire suppression equipment.
Learn about handling and storing acetylene cylinders in Oregon OSHA’s Compressed gas safety factsheet.
Compressed gas safetyEnglish05/11/2015
Regulator burnout dangerPeligro de quemaduras causadas por reguladores recargadosSpanish10/30/2008
Regulator burnout dangerEnglish09/12/2006
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Division 2, Subdivision H, Hazardous Materials (including Hazardous Waste Operations & Emergency Response, PSM) *
Division 2, Subdivision Q, Welding, Cutting, and Brazing *
Division 3, Subdivision J, Welding and Cutting *
Division 4, Subdivision H, Hazardous Materials *
Division 4, Subdivision Q, Welding *
Division 4, Subdivision Z, Chemical/Toxins *
Word document versions may be available * on the Rules pages
Backflow and Flashback Devices on Welding Torches11/24/1992
Backflow/Flashback Preventers (REVISED)05/29/2001
Compressed Gas: Securing Compressed Gas Cylinders02/02/2017
Welding, Cutting and Heat Treating Operations in Tunnels and Shafts05/04/2000
Welding, Cutting, or Heating Metals Coated with Lead Based Paint06/06/2000
Summary of comments and agency decisions regarding proposed changes to oxygen-fuel gas welding, compressed gases, and acetylene in Division 2 General industry, and Division 3 Construction Administrative Rules
Process safety management