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NS EN ISO 3741 Ed. 1 (1999)被替代

Acoustics - Determination Of Sound Levels Of Noise Sources Using Sound Pressure - Precision Methods For Reverberation Rooms

出版：Norwegian Standards (Norges Standardiseringsforbund)

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基本信息

标准编号： NS EN ISO 3741 Ed. 1 (1999)

标准类别：Standard

出版单位：Norwegian Standards (Norges Standardiseringsforbund)

标准页数：0

标准简介

Gives a direct and a comparison method to determine the sound power level that would be produced by a source operating in an environment at standard meterological conditions corresponding to a characteristic impedance of pc = 400 N-s/m3. Specifies test room requirements, source location and general rules for operating conditions. Suitable for steady noise with broad-band, narrow-band and discrete-frequency components. Applies to noise sources with volumes which are preferably not more than 2% of the volumes of the reverberation room which is used for the test.

标准备注

Supersedes NS ISO 3741:1990 (09/2000)

替代本标准的新标准

NS EN ISO 3741:2009

等同采用的国际标准

NEN EN ISO 3741:1999 - Identical

SS EN ISO 3741:1999 - Identical

UNE EN ISO 3741:2000 - Identical

I.S. EN ISO 3741:2000 - Identical

ISO 3741:1999 - Identical

NF EN ISO 3741:2000 - Identical

ONORM EN ISO 3741:2003 - Identical