本标准的目的是提供必要的测试细节，以验证符合AS IEC 61672.1中给出的时间加权声级计、积分平均声级计和积分声级计的所有强制性规范。如有必要，模式评估测试适用于多声道声级计的每个声道。试验和试验方法适用于1级和2级声级计。目的是确保所有实验室使用一致的方法进行模式评估测试。

The objective of this Standard is to provide details of the tests necessary to verify conformance to all mandatory specifications given in AS IEC 61672.1 for time-weighting sound level meters, integrating averaging sound level meters, and integrating sound level meters. Pattern evaluation tests apply for each channel of a multi-channel sound level meter, as necessary. Tests and test methods are applicable  to class 1 and class 2 sound level meters. The aim is to ensure that all laboratories use consistent methods to perform pattern evaluation tests.