ISO 3746:2010规定了根据在给定要求的试验环境中，在包围噪声源（机械或设备）的表面上测量的声压级，确定噪声源声功率级或声能级的方法。使用这些测量值计算应用频率A加权的噪声源产生的声功率级（或者，在噪声突发或瞬态噪声发射的情况下，声能量级）。 ISO 3746:2010中规定的方法适用于ISO 12001中定义的所有类型的噪声（稳定、非稳定、波动、孤立声能爆发等）。 ISO 3746:2010适用于所有类型和尺寸的噪声源（例如，静止或缓慢移动的设备、装置、机器、部件或子组件），前提是能够满足测量条件。 适用于按照ISO 3746进行测量的试验环境: 2010可位于室内或室外，在安装测试噪声源的地方或附近有一个或多个声反射面。 给出了根据ISO 3746:2010确定的声功率级和声能级的不确定度信息，用于应用频率A加权的测量。不确定度符合ISO 12001:1996，精度等级3（测量等级）。

ISO 3746:2010 specifies methods for determining the sound power level or sound energy level of a noise source from sound pressure levels measured on a surface enveloping a noise source (machinery or equipment) in a test environment for which requirements are given. The sound power level (or, in the case of noise bursts or transient noise emission, the sound energy level) produced by the noise source with frequency A-weighting applied is calculated using those measurements. The methods specified in ISO 3746:2010 are suitable for all types of noise (steady, non-steady, fluctuating, isolated bursts of sound energy, etc.) defined in ISO 12001. ISO 3746:2010 is applicable to all types and sizes of noise source (e.g. stationary or slowly moving plant, installation, machine, component or sub-assembly), provided the conditions for the measurements can be met. The test environments that are applicable for measurements made in accordance with ISO 3746:2010 can be located indoors or outdoors, with one or more sound-reflecting planes present on or near which the noise source under test is mounted. Information is given on the uncertainty of the sound power levels and sound energy levels determined in accordance with ISO 3746:2010, for measurements made with frequency A-weighting applied. The uncertainty conforms with that of ISO 12001:1996, accuracy grade 3 (survey grade).