DIN EN ISO 3745:2017-10
声学 使用声压测定噪声源的声功率级和声能级 消声室和半消声室的精密方法
Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure - Precision methods for anechoic rooms and hemi-anechoic rooms (ISO 3745:2012 + Amd 1:2017); German version EN ISO 3745:2012 + A1:2017