Industrial-process measurement and control - Data structures and elements in process equipment catalogues - Part 24-1: Lists of Properties (LOPs) of positioners and I/P converters for electronic data exchange (IEC 61987-24-1:2015); German version EN 61987-24-1:2016— 13 стр.
Industrial process control systems. Methods of evaluating the performance of intelligent valve positioners with pneumatic outputs mounted on an actuator valve assembly— 42 стр.
Industrial process control systems - Part 2: Methods of evaluating the performance of intelligent valve positioners with pneumatic outputs mounted on an actuator valve assembly (IEC 61514-2:2013) (english version)
