BS EN ISO 5136:2009现行
Acoustics. Determination of sound power radiated into a duct by fans and other air-moving devices. In-duct method
出版：British Standards Institution
专家解读视频
Describes a method for testing ducted fans and other air-moving devices to determine the sound power radiated into an anechoically terminated duct on the inlet and/or outlet side of the equipment.
© British Standards Institution 2013
Replaces notes:
Replaces the dual numbered standard BS EN ISO 5136:2003, BS 848-2.5:2003.
ISO 5136:2003 - Identical
NBN EN ISO 5136:2009 - Identical
NF EN ISO 5136:2009 - Identical
SS EN ISO 5136 Ed. 2 (2009) - Identical
NEN EN ISO 5136:2009 - Identical
ISO 5136 : 2003(R2018) - Identical
