BS 7135-2-1989 标准详情
- 标准号:BS 7135-2-1989
- 中文标题:计算机和业务设备辐射出的噪声.第2部分:高频噪声的测定方法
- 英文标题:noise emitted by computer and business equipment - method of measurement of high-frequency noise
- 标准类别:英国标准
- 发布日期:1989-09-29
Four methods for determining the sound power levels of high-frequency noise in the octave band centred at 16 Hz, three based in the reverberation room technique and on in free-field conditions over a reflecting plane.
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