1 Scope
2 Normative references
3 Terms and definitions
4 Filter requirements
5 Residual measurement procedure
6 Reporting
Annex A (informative) - Average differences between
A-weighted and ANS-weighted sound levels and
the standard deviation to these differences for
several noise sources
Annex B (informative) - Noise floor of sound level
meters when using A-weighting and when using
ANS-weighting
Annex C (normative) - Minimum requirements for
measurements in parks and wilderness areas
Bibliography