DIN EN 12516-4:2015-01 工業閥門.外殼設計強度.第4部分:金屬材料制造的(除了鋼制的)閥門外殼用計算方法;德文版本EN 12516-4-2014
Industrial valves - Shell design strength - Part 4: Calculation method for valve shells manufactured in metallic materials other than steel; German version EN 12516-4:2014