Electric welding equipment - Assessment of restrictions related to human exposure to electromagnetic fields (0 Hz to 300 GHz) -- Part 1: Product family standard ((IEC 62822-1:2016) EN IEC 62822-1:2018) (english version)
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) (ISO 2503:2009 + Amd 1:2015) (consolidated version)