This part of IEC 61 672 provides details of the tests necessary to verify conformance to all mandatory specifications given in IEC 61 672-1 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.
NOTE 1 In this document, references to IEC 61 672-1 , IEC 61 672-2, and IEC 61 672-3 refer to the second editions unless stated otherwise.
NOTE 2 Procedures for the pattern-evaluation testing of sound level meters designed to conform to the specifications of IEC 61 672-1 :2002 were given in IEC 61 672-2:2003.
