SS EN ISO 11691 Ed. 2 (2009)现行
Acoustics - Measurement Of Insertion Loss Of Ducted Silencers Without Flow - Laboratory Survey Method
出版：Standardiserings-Kommissionen I Sverige
专家解读视频
Defines a laboratory substitution method to determine the insertion loss without flow of ducted, mainly absorbent, circular and rectangular silencers, as well as other duct elements for use in ventilating and air-conditioning systems.
UNE EN ISO 11691:1996 - Identical
UNE EN ISO 11691:2010 - Identical
DIN EN ISO 11691 (2010-01) - Identical
BS EN ISO 11691:2009 - Identical
I.S. EN ISO 11691:2009 - Identical
NEN EN ISO 11691:2009 - Identical
SN EN ISO 11691:1996 - Identical
SN EN ISO 11691:2010 - Identical
ONORM EN ISO 11691:2010 - Identical
NS EN ISO 11691:2009 - Identical
NBN EN ISO 11691:2009 - Identical
NF EN ISO 11691:2009 - Identical
UNI EN ISO 11691:2009 - Identical
