IS 9671 : 1980 Specification for Frequency Weighting for the Measurement of Aircraft Noise (D-Weighting)

1 SCOPE

1.1 This standard defines a weighting characteristic which is designated Dand is useful for certain measurements of aircraft noise.

2 References

IS 2 :1960 Rules forrounding off numerical values

IS 1885 : Part III Electrotechnical vocabulary:Part III Acoustics

IS 3932 :1966 Specification for sound levelmeters for generalpurpose use