DIN EN 1439 E:2015-10
LPG设备和组件 可运输可再灌装的焊接和钎焊液化气 (LPG) 钢瓶 灌装前、灌装中和灌装后的检测程序(草案)
LPG equipment and accessories - Transportable refillable welded and brazed steel Liquefied Petroleum Gas (LPG) cylinders - Procedure for checking before, during and after filling