Trials of new sound level meter verification tests

Project Description

The project is to perform trial sound level meter verifications, using the CDV version of the new sound level meter standard IEC 1672:199X as the basis.

The test protocol will be defined from Annex B of IEC 1672, with each participating laboratory testing one sound level meter (apart from the co-ordinator who will test several meters).

The project has two main aims: firstly, to compare the results and measurement uncertainties from different laboratories, and secondly to consider whether any improvements are necessary to the wording of Annex B to avoid misinterpretation.

Conclusions will be reported to IEC TC29/ WG4 'Sound level meters'.

The proposed finishing date for this project is May 1998.

NPL proposes to act as co-ordinator.

Final Report 2004-02-06

The project was completed and the final report published in September 1998, as NPL Report CMAM 25.