EN ISO 9809-2:2019 气瓶.可重复充装的无缝钢气瓶设计,结构和试验.第2部分:抗拉强度大于或等于1100 MPa的淬火加回火钢瓶
Gas cylinders - Design, construction and testing of refillable seamless steel gas cylinders and tubes - Part 2: Quenched and tempered steel cylinders and tubes with tensile strength greater than or equal to 1 100 MPa (ISO 9809-2:2019)