I.S. EN ISO 3747:2011现行
Acoustics - Determination of Sound Power Levels and Sound Energy Levels of Noise Sources Using Sound Pressure - Engineering/survey Methods for use in Situ in a Reverberant Environment
出版：National Standards Authority of Ireland
专家解读视频
Defines a method for determining the sound power level or sound energy level of a noise source by comparing measured sound pressure levels emitted by a noise source (machinery or equipment) mounted in situ in a reverberant environment, with those from a calibrated reference sound source.
BS EN ISO 3747:2010 - Identical
NBN EN ISO 3747:2009 - Identical
NBN EN ISO 3747:2011 - Identical
NS EN ISO 3747:2010 - Identical
SS EN ISO 3747 Ed. 3 (2010) - Identical
ONORM EN ISO 3747:2011 - Identical
SN EN ISO 3747:2011 - Identical
NF EN ISO 3747:2011 - Identical
NEN EN ISO 3747:2010 - Identical
SN EN ISO 3747:2010 - Identical
