00889nam a22001217a 4500 16233 16233 0580137805 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 London : British Standards Institution, 1984. 12 p. 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. 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 ST 0 0 0 0 AIISH AIISH 2020-06-23 0 ST020 2020-06-23 00:00:00 2020-06-23 ST