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BS 4856-4:1978被替代
Methods for testing and rating fan coil units, unit heaters and unit coolers. Acoustic performance; without additional ducting
出版：British Standards Institution
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基本信息
標(biāo)準(zhǔn)編號： BS 4856-4:1978
發(fā)布時間：1978/1/31 0:00:00
標(biāo)準(zhǔn)類別：Standard
出版單位：British Standards Institution
標(biāo)準(zhǔn)頁數(shù)：12
標(biāo)準(zhǔn)簡介
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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? British Standards Institution 2013
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