NS EN ISO 3747:2009被替代
Acoustics - Determination Of Sound Power Levels Of Noise Sources Using Sound Pressure - Comparison Method In Situ
出版：Norwegian Standards (Norges Standardiseringsforbund)
专家解读视频
Specifies a procedure to determine sound power levels of sound sources in situ, especially if non-movable.
UNI EN ISO 3747:2009 - Identical
NF EN ISO 3747:2009 - Identical
NBN EN ISO 3747:2009 - Identical
ONORM EN ISO 3747:2010 - Identical
SS EN ISO 3747 Ed. 2 (2009) - Identical
UNE EN ISO 3747:2010 - Identical
SN EN ISO 3747:2010 - Identical
SN EN ISO 3747:2000 - Identical
NEN EN ISO 3747:2009 - Identical
UNE EN ISO 3747:2001 - Identical
NBN EN ISO 3747:2011 - Identical
SS EN ISO 3747 Ed. 3 (2010) - Identical
ONORM EN ISO 3747:2011 - Identical
NEN EN ISO 3747:2010 - Identical
