BS 7135-2:1989被替代
Noise emitted by computer and business equipment. Method of measurement of high-frequency noise
出版：British Standards Institution
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基本信息
标准编号： BS 7135-2:1989
发布时间：1989/9/29 0:00:00
标准类别：Standard
出版单位：British Standards Institution
标准页数：20
标准简介
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.
标准备注
© British Standards Institution 2013
Amendment notes:
AMD 6978 published 01 April 1992
等同采用的国际标准
ISO 9295:1988 - Identical
SNV DIN EN 29295:1991 - Identical
SNV NF EN 29295:1992 - Identical
