
Acoustics - Laboratory measurement of sound insulation of building elements Part 4: Measurement procedures and requirements
出版:International Organization for Standardization

專家解讀視頻
08/30087655 DC - Identical
NEN EN ISO 10140-4:2008 - Identical
DIN EN ISO 10140-4 (2008-10) - Identical
NF EN ISO 10140-4:2009 - Identical