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Electroacoustics. Sound level meters -- Pattern evaluation tests
This part of IEC 61672 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.
NOTE 1 In this document, references to IEC 61672‑1, IEC 61672‑2, and IEC 61672‑3 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 61672‑1:2002 were given in IEC 61672‑2:2003.
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