BS 7135-1:1989被替代
Noise emitted by computer and business equipment. Method of measurement of airborne noise
出版：British Standards Institution
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基本信息
标准编号： BS 7135-1:1989
发布时间：1989/8/31 0:00:00
标准类别：Standard
出版单位：British Standards Institution
标准页数：48
标准简介
Methods for determining the A-weighted sound power levels based on measurements in reverberant rooms or in free-field conditions over a reflecting plane, and A-weighted sound pressure levels at the operator or bystander positions.
标准备注
© British Standards Institution 2013
Amendment notes:
AMD 6977 published 01 April 1992
替代本标准的新标准
