Simple unfired pressure vessels designed to contain air or nitrogen - Part 4: Aluminium alloy pressure vessels designed for air braking equipment and auxiliary pneumatic equipment for railway rolling stock
设计用于容纳空气或氮气的简单未燃压力容器 - 第4部分:为空气制动设备和铁路机车车辆辅助气动设备设计的铝合金压力容器
This Part of this European Standard is applicable to simple unfired steel pressure vessels, referred to as "vessel" in this standard, designed for air braking equipment and auxiliary pneumatic equipment for railway rollingstock.