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BS 848-2:1985
M00000125
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BS 848-2:1985 Fans for general purposes. Methods of noise testing
standard by BSI Group, 12/31/1985
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Full Description
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.Partially replaced by BS EN ISO 5136:2003.