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Withdrawn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.
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Related Information
17.140.20 Noise emitted by machines and equipment
91.140.30 Ventilation and air-conditioning systems
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BS 4856-4:1978
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