电声学.声级计.第3部分:周期性试验

[中文适用范围]： 1.1 IEC 61672 的本部分描述了符合 IEC 61672-1:2002 的 1 类或 2 类要求的常规、积分平均和积分声级计的定期测试程序。该标准的目的是确保所有测试实验室以一致的方式进行定期测试。1.2 定期测试的目的是向用户保证声级计的性能符合 IEC 61672-1:2002 对一组有限的关键测试以及进行测试的环境条件的要求。1.3 IEC 61672 本部分中的测试范围有意限制为定期测试所需的最低限度。1.4 IEC 61672 本部分中描述的定期测试适用于其型号已经或尚未由负责型式批准的独立测试机构按照 IEC 61672-2 测试程序进行型式批准的声级计。 ：2003年。 IEC 61672 本部分中描述的定期测试也适用于制造商声称符合 IEC 61672-1 要求的声级计。由于定期测试的范围有限，如果没有公开获得型式批准的证据，则即使定期测试的结果符合所有适用的要求，也无法得出符合 IEC 61672-1:2002 要求的一般性结论。 IEC 61672 本部分的要求。 [外文原描述]： Describes procedures for periodic testing of conventional, integrating-averaging, and integrating sound level meters conforming to the class 1 or class 2 requirements of IEC 61672-1:2002. The aim of the standard is to ensure that periodic testing is performed in a consistent manner by all testing laboratories. The purpose of periodic testing is to assure the user that the performance of a sound level meter conforms to the requirements of IEC 61672-1:2002 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 IEC 61672 is deliberately restricted to the minimum considered necessary for periodic tests. Periodic tests described in this part of 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 and in accordance with the test procedures of IEC 61672-2:2003. Periodic tests described in this part of IEC 61672 also apply to sound level meters for which the manufacturer claims conformance to the requirements of IEC 61672-1. 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 requirements of IEC 61672-1:2002 can be made, even if the results of the periodic tests conform to all applicable requirements of this part of IEC 61672.