NF S31-078-4-1989 声学.机械与设备规定噪声发射值的测定和验证方法.第4部分:成批机械规定器噪声值的方法(欧洲标准 EN 27574-4).
Acoustics. Statistical methods for determining and verifying stated noise emission values of machinery and equipment. Part 4 : methods for stated values for batches of machines.