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
标准编号： BS 4856-4:1978
发布时间：1978/1/31 0:00:00
标准类别：Standard
出版单位：British Standards Institution
标准页数：12
标准简介
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.
标准备注
© British Standards Institution 2013
替代本标准的新标准
