
Electroacoustics - Sound level meters Part 3: Periodic tests
出版:International Electrotechnical Committee

专家解读视频
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.
NEN EN IEC 61672-3:2007 - Identical
PN EN 61672-3:2007 - Identical
SS EN 61672-3 Ed. 1 (2007) - Identical
I.S. EN 61672-3:2006 - Identical
NF EN 61672-3:2007 - Identical
DIN EN 61672-3 (2007-05) - Identical
BS EN 61672-3:2006 - Identical
CEI EN 61672-3 Ed. 1 (2007) - Identical