ISO 21172-1-2015/Amd 1-2018 气瓶.气体运输用容量不超过3000升的焊接钢制压力桶.设计和结构.第1部分:容量不超过1000升.修改件1
Gas cylinders — Welded steel pressure drums up to 3 000 litres capacity for the transport of gases — Design and construction — Part 1: Capacities up to 1 000 litres — Amendment 1