Descriptors | Pressure regulators, Gas cylinders, Compressed gases, Medical equipment, Valves, Oxygen, Nitrous oxide, Helium, Carbon dioxide, Xenon, Nitrogen, Air, Flowmeters, Fluids handling equipment (medical), Outlet connections, Testing conditions, Accuracy, Design, Mechanical testing, Leak tests, Performance, Performance testing, Pressure testing, Ignitability, Fire tests, Colour codes, Marking, Instructions for use, Packaging, Safety measures, Symbols, Test equipment, Torque |