NBN EN ISO 5136-2003 标准详情
- 标准号:NBN EN ISO 5136-2003
- 中文标题:
- 英文标题:Acoustics - Determination Of Sound Power Radiated Into A Duct By Fans And Other Air-moving Devices - In-duct Method
- 标准类别:比利时标准NBN
- 发布日期:
Gives 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. Applicable to fans which emit steady, broad-band and disc
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