BS EN ISO 11691:1997被替代
Acoustics. Measurement of insertion loss of ducted silencers without flow. Laboratory survey method
出版：British Standards Institution
专家解读视频
Defines a laboratory substitution method for 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.
© British Standards Institution 2013
UNE EN ISO 11691:2010 - Identical
SN EN ISO 11691:1996 - Identical
NEN EN ISO 11691:1995 - Identical
ONORM EN ISO 11691:1996 - Identical
DIN EN ISO 11691 (1996-02) - Identical
NBN EN ISO 11691:1996 - Identical
I.S. EN ISO 11691:1996 - Identical
NF EN ISO 11691:1996 - Identical
UNI EN ISO 11691:1997 - Identical
NS EN ISO 11691 Ed. 1 (1995) - Identical
UNE EN ISO 11691:1996 - Identical
ISO 11691:1995 - Identical
SS EN ISO 11691 Ed. 1 (1995) - Identical
