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