IEC-61672-2 Electroacoustics - Sound level meters - Part 2: Pattern evaluation tests

IEC-61672-2 - EDITION 2.1 - CURRENT
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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. This consolidated version consists of the second edition (2013) and its amendment 1 (2017). Therefore, no need to order amendment in addition to this publication.
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Document Number

IEC 61672-2 Ed. 2.1 b:2017

Revision Level

EDITION 2.1

Status

Current

Publication Date

April 1, 2017

Committee Number

29