KS B ISO 9809-2:2012 气瓶.可再填充的无缝钢制气瓶.设计、制造和试验.第2部分:拉力强度远大于或等于1100MPa的淬火和回火钢瓶
Gas cylinders-Refillable seamless steel gas cylinders-Design, construction and testing-Part 2:Quenched and tempered steel cylinders with tensile strength greater than or equal to 1 100 MPa