AS IEC 61672.2-2004

1 Scope2 Normative references3 Terms and definitions4 Submission for testing5 Marking of the sound level meter and information in the instruction manual6 Mandatory facilities and general requirements7 Environmental, electrostatic and radio-frequency tests 7.1 General 7.2 Expanded uncertainties for measurements of environmental test conditions 7.3 Influence of static pressure 7.4 Tolerance limits on air temperature, relative humidity and static pressure 7.5 Acclimatization requirements for tests of the influence of air temperature and relative humidity 7.6 Abbreviated test of the influence of air temperature and relative humidity combined 7.7 Influence of air temperature 7.8 Influence of relative humidity 7.9 Influence of electrostatic discharges 7.10 Influence of a.c. power frequency and radio-frequency fields8 Radio-frequency emissions and public power supply disturbances9 Electroacoustical performance tests 9.1 General 9.2 Indication at the calibration check frequency 9.3 Directional response 9.4 Tests of frequency weightings with acoustical signals 9.5 Tests of frequency weightings with electrical signals 9.6 Combined effect of reflections, diffraction and corrections for nominal microphone frequency response and for the influence of a windscreen 9.7 Adjustments to obtain free-field sound levels 9.8 Level linearity 9.9 Under-range indication 9.10 Self-generated noise 9.11 Decay time constants for time weightings F and S 9.12 Toneburst response for sound level meters that measure time-weighted sound level 9.13 Toneburst response for sound level meters that measure sound exposure level or time-average sound level 9.14 Response to sequences of repeated tonebursts for sound level meters that measure time-average sound level 9.15 Overload indication 9.16 Peak C sound level 9.17 Reset 9.18 Electrical output 9.19 Timing facilities 9.20 Crosstalk in multi-channel sound level meter systems 9.21 Power supply10 Pattern evaluation report

Provides details of the tests necessary to verify conformance to all mandatory specifications for sound levels meters. Identical with and reproduced from IEC 61672-2:2003.

This part of IEC 61672 provides details of the tests necessary to verify conformance to allmandatory specifications given in IEC 61672-1:2002 for conventional sound level meters,integrating-averaging sound level meters and integrating sound level meters. Patternevaluation tests apply for each channel of a multi-channel sound level meter, as appropriate.Tests and test methods are applicable to class 1 and class 2 sound level meters. The aim is toensure that all testing laboratories use consistent methods to perform pattern evaluation tests.

First published as AS Z37-1967 and AS Z38-1967.
AS Z37-1967 revised and redesignated as AS 1259.1-1976.
AS Z38-1967 revised and redesignated as AS 1259.2-1976.
AS 1259.3 first published in 1976.
AS 1259.1-1976, AS 1259.2-1976 and AS 1259.3-1976 revised, amalgamated and redesignated as AS 1259-1982.
AS 1259-1982 revised and redesignated as AS 1259.1-1990 and AS 1259.2-1990.
AS 1259.1-1990 and AS 1259.2-1990 revised, amalgamated and redesignated in part as AS IEC 61672.2-2004.