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 8-1: Noise considerations - Laboratory measurement of noise generated by aerodynamic flow through control valves (IEC 60534-8-1:2005); German version EN 60534-8-1:2005— 18 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.