BS 848-2:1985被替代
Fans for general purposes. Methods of noise testing
出版：British Standards Institution
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基本信息
标准编号： BS 848-2:1985
发布时间：1985/12/31 0:00:00
标准类别：Standard
出版单位：British Standards Institution
标准页数：58
标准简介
Determination of the acoustic performance of fans operating against difference of pressure. Four methods are described: in-duct, reverberant field, free field and semi-reverberant. Illustrations are given of suitable test ducting and anechoic terminations.
标准备注
© British Standards Institution 2013
Replaced by notes:
Replaced by BS EN ISO 5136 and Parts 1 to 4 of BS ISO 13347.
Amendment notes:
AMD 9374 published 15 March 1997
替代本标准的新标准
等同采用的国际标准
ISO 5136:2003 - Similar
