This International Standard specifies requirements for single or two-stage pressure regulators for connections to gas cylinders normally used for compressed gases up to 300 bar (30 MPa), for dissolved acetylene, for liquefied petroleum gases (LPG), methylacetylene-propadiene-mixtures (MPS) and carbon dioxide (CO2) used in welding, cutting and allied processes.
note: 1) 300 bar relates to maximum cylinder charging pressure at 15℃.
ISO 2503:1998 history
2015ISO 2503:2009/Amd 1:2015 Gas welding equipment - Pressure regulators and pressure regulators with flow-metering devices for gas cylinders used in welding, cutting and allied processes up to 300 bar (30 MPa); Amendment 1
2009ISO 2503:2009 Gas welding equipment - Pressure regulators and pressure regulators with flow-metering devices for gas cylinders used in welding, cutting and allied processes up to 300 bar (30 MPa)
1998ISO 2503:1998 Gas welding equipment - Pressure regulators for gas cylinders used in welding, cutting and allied processes up to 300 bar
1984ISO 2503:1983/Add 1:1984 Pressure regulators for gas cylinders used in welding, cutting and allied processes — Addendum 1
1983ISO 2503:1983 Pressure regulators for gas cylinders used in welding, cutting and allied processes
1972ISO 2503:1972 Title missing - Legacy paper document