
Acoustics - Determination of sound power radiated into a duct by fans and other air-moving devices - In-duct method (ISO 5136:2003)
出版:German Institute for Standardisation (Deutsches Institut für Normung)

专家解读视频
NBN EN ISO 5136:2009 - Identical
NF EN ISO 5136:2009 - Identical
SS EN ISO 5136 Ed. 2 (2009) - Identical
NEN EN ISO 5136:2009 - Identical