BS 4856-4:1978
Withdrawn
Date published:
Methods for testing and rating fan coil units, unit heaters and unit coolers, Acoustic performance; without additional ducting
Testing and rating for sound power emission from equipment defined in BS 4856:Parts 1 and 8, when used directly in the conditioned space, i.e. without ducting. Instructions for calculations and for presentation of test results.
Related Information
17.140.20 Noise emitted by machines and equipment
91.140.30 Ventilation and air-conditioning systems
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