IEC 61672-2:2013提供了验证时间加权声级计、积分平均声级计和积分声级计是否符合IEC 61672-1中给出的所有强制性规范所需的测试细节。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。第二版取消并取代了2003年出版的第一版。本第二版构成技术修订版，与前一版相关的主要技术变更涉及符合规范，当测量的设计目标偏差不超过适用的验收限值时，以及当测量不确定度不超过相应的最大允许不确定度时，现在证明符合规范，两种不确定性的确定覆盖率均为95%。 在本文件中，除非另有说明，否则对IEC 61672-1、IEC 61672-2和IEC 61672-3的引用均指第二版。IEC 61672-2:2003给出了设计为符合IEC 61672-1:2002规范的声级计的模式评估测试程序。

IEC 61672-2:2013 provides details of the tests necessary to verify conformance to all mandatory specifications given in 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. This second edition cancels and replaces the first edition published in 2003. This second edition constitutes a technical revision, the main technical changes with regard to the previous edition concern conformance to specifications which is now demonstrated when measured deviations from design goals do not exceed the applicable acceptance limits, and when the uncertainty of measurement does not exceed the corresponding maximum permitted uncertainty, with both uncertainties determined for a coverage probability of 95 %. In this document, references to IEC 61672-1, IEC 61672-2, and IEC 61672-3 refer to the second editions unless stated otherwise. Procedures for the pattern-evaluation testing of sound level meters designed to conform to the specifications of IEC 61672-1:2002 were given in IEC 61672-2:2003.