ASA S1.4-2014/PART 3 / IEC 61672-3:2013 American National Standard - Electroacoustics - Sound Level Meters - Part 3: Periodic Tests (a nationally adopted international standard)

ASA S1.4-2014/PART 3 / IEC 61672-3:2013 American National Standard - Electroacoustics - Sound Level Meters - Part 3: Periodic Tests (a nationally adopted international standard)

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This part of ANSI/ASA S1.4 / IEC 61672 describes procedures for periodic testing of time-weighting, integrating-averaging, and integrating sound level meters that were designed to conform to the class 1 or class 2 specifications of ANSI/ASA S1.4-2014/Part 1 / IEC 61672-1. The purpose of periodic testing is to assure the user that the performance of a sound level meter conforms to the applicable specifications of IEC 61672-1 for a limited set of key tests and for the environmental conditions under which the tests were performed. The extent of the tests in this part of ANSI/ASA S1.4 / IEC 61672 is deliberately restricted to the minimum considered necessary for periodic tests. Periodic tests described in this edition of ANSI/ASA S1.4/Part 3 / IEC 61672-3 apply to sound level meters for which the manufacturer claims conformance to the specifications of the second edition of IEC 61672-1. Periodic tests described in this part of ANSI/ASA S1.4 / IEC 61672 apply to sound level meters for which the model has been, or has not been, pattern approved by an independent testing organization responsible for pattern approvals in accordance with the test procedures of the second edition of IEC 61672-2. Because of the limited extent of the periodic tests, if evidence of pattern approval is not publicly available, no general conclusion about conformance to the specifications of IEC 61672-1 can be made, even if the results of the periodic tests conform to all applicable requirements of this edition of ANSI/ASA S1.4/Part 3 / IEC 61672-3.

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