Historical
IEC 60534-1 Ed. 2.0 b:1987
Industrial-process control valves. Part 1: Control valve terminology and general considerations
Applies to all types of industrial-process control valves. Establishes a basic component and functional terminology list and gives guidance on the use of the other parts of this publication. Gives overall design requirements, test requirements and prediction methods.
International Electrotechnical Commission [iec]