本标准描述了一种以方便的方式表示机械和设备噪声排放的方法。本标准适用于本质上静止的所有机械和设备，总A加权声功率是噪声排放的一个有意义的描述。本标准旨在促进设备规范、标签或其他文件的编制，这些文件以定量方式表达了机械或设备的噪声排放。

This Standard describes a method for expressing the noise emission of machinery and equipment in a convenient manner. This Standard applies to all machinery and equipment that is essentially stationary in nature and for which overall A-weighted sound power is a meaningful descriptor of noise emission. This Standard is intended to facilitate preparation of equipment specifications, labels, or other documentation that expresses in quantitative terms the noise emission of machinery or equipment.