DIN EN 60318-4:2010 电声学.人的头和耳模拟器.第4部分:用耳塞耦合到人耳的耳机测量用塞耳模拟器(IEC 60318-4-2010);德文版本EN 60318-4-2010
Electroacoustics - Simulators of human head and ear - Part 4: Occluded-ear simulator for the measurement of earphones coupled to the ear by means of ear inserts (IEC 60318-4:2010); German version EN 60318-4:2010