DIN EN 61987-21-2016 工业过程测量和控制.过程设备目录中的数据结构和元素.第21部分:用于电子数据交换的自动阀门的属性列表(LOP).通用结构(IEC 61987-21-2015).德文版本EN 61987-21-2016
Industrial-process measurement and control - Data structures and elements in process equipment catalogues - Part 21: List of Properties (LOP) of automated valves for electronic data exchange - Generic structures (IEC 61987-21:2015); German version EN 6198