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NEN EN ISO 3741:2009被替代

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

出版：Nederlands Normalisatie Instituut

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基本信息

標準編號： NEN EN ISO 3741:2009

發布時間：2009/8/1 0:00:00

標準類別：Standard

出版單位：Nederlands Normalisatie Instituut

標準頁數：33

標準簡介

Defines a direct method and a comparison method for determining the sound power level that would be produced by a source operating in an environment at standard meteorological conditions corresponding to a characteristic impedance of rc = 400 N.s/m[3] (where r is the density of air and c is the speed of sound). It also defines test room requirements, source location and general rules for operating conditions, instrumentation and techniques for obtaining an estimate of mean-square sound pressure levels from which the sound power levels of the source in octave or one-third-octave bands are calculated with a grade 1 accuracy.

標準備注

Supersedes NEN ISO 3741 and NEN ISO 3742. (07/2002)

本標準替代的舊標準

NEN EN ISO 3741:1999

替代本標準的新標準

NEN EN ISO 3741:2010

等同采用的國際標準

UNE EN ISO 3741:2000 - Identical

NS EN ISO 3741 Ed. 1 (1999) - Identical

UNI EN ISO 3741:2001 - Identical

NBN EN ISO 3741 Ed. 3 (1999) - Identical

NF EN ISO 3741:2000 - Identical