Specification for the design and construction of refillable transportable seamless normalized carbon manganese steel gas cylinders of water capacity up to 0.5 litre for compressed, liquefied and dissolved gases and up to 1 litre for carbon dioxide
可运输气瓶.可重复充装的可运输无缝正火碳锰钢气瓶的设计和制造规范 压缩、液化和溶解气体的水容量不超过0.5升 二氧化碳的水容量不超过1升;德语版EN 132