Descriptors | Pressure regulators, Gas valves, Valves, Gas-welding equipment, Welding equipment, Welding, Thermal cutting equipment, Gas cylinders, Acetylene, Liquefied petroleum gas, Carbon dioxide, Propadiene, Methyl compounds, Pressure, Ratings, Flow rates, Design, Performance, Conformity, Grades (quality), Classification systems, Marking, Instructions for use, Pressure measurement (fluids), Relief valves, Performance testing, Mechanical testing, Leak tests, Fire tests, Ignition, Testing conditions |