DIN EN ISO 7235-2010 声学.管道消音器和空气界面装置的实验室测量规程.插入损失、流动噪声和总压损失(ISO 7235-2003).德文版本EN ISO 7235-2009
Acoustics - Laboratory measurement procedures for ducted silencers and air-terminal units - Insertion loss, flow noise and total pressure loss (ISO 7235:2003); German version EN ISO 7235:2009
This standard specifies a measurement method for the determination of insertion loss, flow noise and pressure loss of ducted silencers. It applies to mainly dissipative silencers, but not to the reactive types used in automobiles.