I.S. EN ISO 7235:2003被替代
Acoustics - Laboratory Measurement Procedures For Ducted Silencers And Air-terminal Units - Insertion Loss, Flow Noise And Total Pressure Loss
出版：National Standards Authority of Ireland
专家解读视频
Covers the substitution method for determining the insertion loss of ducted silencers. Also sets out requirements for determining the insertion loss, in frequency bands, of silencers with and without air flow; the sound power level, in frequency bands, of the flow noise generated by silencers; the total pressure loss of silencers with air flow.
ISO 7235:2003 - Identical
NS EN ISO 7235 Ed. 2 (2003) - Identical
ONORM EN ISO 7235:2003 - Identical
DIN EN ISO 7235 (2004-02) - Identical
BS EN ISO 7235:2003 - Identical
NEN EN ISO 7235:2003 - Identical
SN EN ISO 7235:2003 - Identical
UNI EN ISO 7235:2005 - Identical
NBN EN ISO 7235:2003 - Identical
UNI EN ISO 7235:1997 - Identical
NF EN ISO 7235:2004 - Identical
UNE EN ISO 7235:2004 - Identical
SS EN ISO 7235 Ed. 2 (2004) - Identical
