ISO 2503:2009 氣焊設備.用于壓力在300 bar(30 MPa)以下的焊接,切割及相關工藝的調壓器和配備氣瓶用流量計裝置的調壓器
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)