本国际标准规定了通过声功率级计算确定工作站和附近其他指定位置机械和设备发射声压级的两种方法。该测定的主要目的是允许在规定的环境条件和标准化安装和操作条件下，比较给定系列机械或设备的不同单元的性能。获得的数据也可用于ISO 4871中规定的发射声压级的声明和验证。包含以下内容:BS EN ISO 11203:2009

This International Standard specifies two methods for determining the emission sound pressure levels of machinery and equipment, at a work station and at other specified positions nearby, by calculation from the sound power level. The principal purpose of this determination is to permit comparison of the performance of different units of a given family of machinery or equipment, under defined environmental conditions and standardized mounting and operating conditions. The data obtained may also be used for the declaration and verification of emission sound pressure levels as specified in ISO 4871.Incorporates the following:BS EN ISO 11203:2009