NF A49-903*NF EN 13293:2003 可运输气瓶 容量为1升及以下的可再充装的、可运输无缝正火碳锰钢气瓶的设计和制造规范
Transportable gas cylinders - Specification for the design and construction of refillable transportable seamless normalised carbon manganese steel gas cylinders up to and including 1 litre