TY - BOOK TI - BS 5944-4:1984-Measurement of airborne noise from hydraulic fluid power systems and components Part 4: Method of determining sound power levels from valves controlling flow and pressure SN - 0580137805 PY - 1984/// CY - London PB - British Standards Institution KW - Flow regulators, Liquid valves, Cavitation, Free-field rooms, Hydraulically-operated devices, Hydraulic transmission systems, Sound intensity, Valves, Noise (environmental), Testing conditions, Acoustic measurement, Pressure regulators N1 - Describes procedures for the determination of sound power levels of a hydraulic fluid power valve under controlled conditions of installation and operation, suitable for providing a basis for comparing the noise levels of valves ER -