Industrial-process control valves - Part 1: Control valve terminology and general considerations (IEC 60534-1:2005); German version EN 60534-1:2005— 14 стр.
Industrial-process control valves - Part 2: Flow capacity; section 2: Sizing equations for compressible fluid flow under installed conditions (IEC 60534-2-2:1980); German version EN 60534-2-2:1993— 12 стр.
Industrial-process control valves - Part 8: Noise considerations; section 4: Prediction of noise generated by hydrodynamic flow (IEC 60534-8-4:1994); German version EN 60534-8-4:1994— 11 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.
