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NS EN ISO 3741:2010現(xiàn)行

Acoustics - Determination Of Sound Power Levels And Sound Energy Levels Of Noise Sources Using Sound Pressure - Precision Methods For Reverberation Test Rooms

出版：Norwegian Standards (Norges Standardiseringsforbund)

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基本信息

標(biāo)準(zhǔn)編號(hào)： NS EN ISO 3741:2010

發(fā)布時(shí)間：2011/1/1 0:00:00

標(biāo)準(zhǔn)類(lèi)別：Standard

出版單位：Norwegian Standards (Norges Standardiseringsforbund)

標(biāo)準(zhǔn)頁(yè)數(shù)：72

標(biāo)準(zhǔn)簡(jiǎn)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/m[3]. 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.

標(biāo)準(zhǔn)備注

Supersedes NS ISO 3741:1990 (09/2000)

本標(biāo)準(zhǔn)替代的舊標(biāo)準(zhǔn)

NS ISO 3741 : 1990

NS ISO 3742 : 1ED 1990

NS EN ISO 3741:2009

NS ISO 3742 Ed. 1 (1990)

等同采用的國(guó)際標(biāo)準(zhǔn)

I.S. EN ISO 3741:2010 - Identical

NEN EN ISO 3741:2010 - Identical

SS EN ISO 3741 Ed. 3 (2010) - Identical

NF EN ISO 3741:2012 - Identical