BS 4856-4:1997

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Methods for testing and rating fan coil units, unit heaters and unit coolers. Determination of sound power levels of fan coil units, unit heaters and unit coolers using reverberating rooms|Sound intensity, Acoustic measurement, Fan coil units, Sound sources, Unit coolers, Acoustic testing, Reverberation rooms, Installation, Mathematical calculations, Unit heaters, Test equipment, Performance, Air-conditioning equipment, Air treatment devices, Noise (environmental), Heat exchangers, Ratings

112 GBP