NS-ISO 7574-4:1985 声学 确定和验证机械和设备规定噪声发射值的统计方法 第4部分:批量机器规定值的方法 (= EN 27574-4) (ISO 7574-4:1985)
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 - (= EN 27574-4) (ISO 7574-4:1985)