Acoustics - Determination of sound power levels and sound energy levels of noise sources using sound pressure - Engineering methods for small movable sources in reverberant fields, Part 1: Comparison method for a hard-walled test room
声学.用声压测定噪声源的声功率级和声能级.混响场中小型可移动声源的工程方法 第1部分:硬壁试验室的比较法
The objective of this Standard is to specify methods for determining the sound power level or sound energy level of a noise source by comparing measured sound pressure levels emitted by this source (machinery or equipment) mounted in a hard-walled test room, the characteristics of which are specified, with those from a calibrated reference sound source.