BS EN 60534-8-2:1991 Industrial-process control valves. Noise considerations. Laboratory measurement of noise generated by hydrodynamic flow through control valves
2012BS EN 60534-8-2:2012 Industrial-process control valves. Noise considerations. Laboratory measurement of noise generated by hydrodynamic flow through control valves
1991BS EN 60534-8-2:1991 Industrial-process control valves. Noise considerations. Laboratory measurement of noise generated by hydrodynamic flow through control valves