这是ANSI/ASA S1的一部分。4/IEC 61672提供了验证是否符合ANSI/ASA S1中给出的所有强制性规范所需的测试细节。4-2014/第1部分/IEC 61672-1:2013时间加权声级计、积分平均声级计和积分声级计。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。

This part of ANSI/ASA S1.4 / IEC 61672 provides details of the tests necessary to verify conformance to all mandatory specifications given in ANSI/ASA S1.4-2014/Part 1 / IEC 61672-1:2013 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.