
Acoustics. Determination of sound power levels of noise sources using sound pressure. Comparison method in situ
出版:British Standards Institution

专家解读视频
© British Standards Institution 2013
NBN EN ISO 3747:2009 - Identical
SS EN ISO 3747 Ed. 3 (2010) - Identical
NEN EN ISO 3747:2010 - Identical
ISO 3747:2000 - Identical