EN ISO 9809-4:2022 气瓶. 可重复充注的无缝钢制气瓶. 设计, 结构和试验. 第4部分: Rm值低于1 100 MPa的不锈钢瓶
Gas cylinders - Design, construction and testing of refillable seamless steel gas cylinders and tubes - Part 4: Stainless steel cylinders with an Rm value of less than 1 100 MPa (ISO 9809-4:2021)
This document specifies the minimum requirements for the materials, design, construction and workmanship, manufacturing processes, examinations and testing at time of manufacture f...