UNI EN ISO 3744:2010现行
Acoustics - Determination Of Sound Power Levels And Sound Energy Levels Of Noise Sources Using Sound Pressure - Engineering Methods For An Essentially Free Field Over A Reflecting Plane
出版：Italian Standards
专家解读视频
Describes methods for determining the sound power level or sound energy level of a noise source from sound pressure levels measured on a surface enveloping the noise source (machinery or equipment) in an environment that approximates to an acoustic free field near one or more reflecting planes.
NBN EN ISO 3744:2010 - Identical
NS EN ISO 3744:2010 - Identical
NEN EN ISO 3744:2010 - Identical
SS EN ISO 3744 Ed. 3 (2010) - Identical
SN EN ISO 3744:2011 - Identical
UNE EN ISO 3744:2011 - Identical
ONORM EN ISO 3744:2011 - Identical
NF EN ISO 3744:2009 - Identical
NF EN ISO 3744:2012 - Identical
BS EN ISO 3744:2010 - Identical
UNE EN ISO 3744:2010 - Identical
