GOST R 51400-1999 机器噪音.利用声压测定声功率级.硬壁测试室与特殊混响测试室混响场内小型可移动音源的工程设计方法
Noise of machines. Determination of sound power levels using sound pressure. Engineering methods for small, movable sources in reverberant fields for hard - walls test rooms and for special reverberation test rooms