Sound and Vibration Standards

BS 4856 : Fan Coils, Heaters and Coolers
Sound Power Testing and Rating

Standard Number : BS 4856-4:1997
Title : 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
Status : Current
Publication Date : 15 September 1997
Confirm Date : 01 December 2012
Replaces : BS 4856-4:1978, BS 4856-5:1979
Draft Superseded By : 95/717445 DC
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