Industrial-process control valves; part 8: noise considerations; section 2: laboratory measurement of noise generated by hydrodynamic flow through control valves (IEC 60534-8-2:1991); German version EN 60534-8-2:1993— 13 стр.
Industrial-process control valves - Part 1: Control valve terminology and general considerations (IEC 60534-1:1987); German version EN 60534-1:1993— 11 стр.
Industrial-process control valves - Part 6: Mounting details for attachment of positioners to control valves - Section 1: Postioner mounting on linear actuators (IEC 60534-6-1:1997); German version EN 60534-6-1:1997— 14 стр.
