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NEN ISO 5136:1994被替代
Acoustics - Determination Of Sound Power Radiated Into A Duct By Fans - In-duct Method
出版：Nederlands Normalisatie Instituut
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基本信息
標(biāo)準(zhǔn)編號： NEN ISO 5136:1994
發(fā)布時間：1994/1/1 0:00:00
標(biāo)準(zhǔn)類別：Standard
出版單位：Nederlands Normalisatie Instituut
標(biāo)準(zhǔn)頁數(shù)：23
標(biāo)準(zhǔn)簡介
Gives a method for testing ducted fans to determine the sound power radiated into an anechoically-terminated duct on the inlet and/or outlet side of the equipment. Applicable to fans which emit steady, broadband, narrow-band and discrete-frequency sound.
等同采用的國際標(biāo)準(zhǔn)
ISO 5136:2003 - Identical
