IS 9989 : 1981 Assessment of Noise with Respect to Community Response

UDC 699.84 : 534.84                                          LTD5

Reaffirmed 2023

1 SCOPE

1.1 This standard is intended as a guide to the measurement of the acceptability of noise in communities. It specifies a method for the measurement of noise, the application of corrections to the measured levels (according to duration, spectrum character and peak factor), and a comparison of the corrected levels with a noise criterion which takes account of various environmental factors.

2 References

IS 2 : 1960 Rules for rounding off numerical values

IS 1885 : Part III : Electrotechnical vocabulary: Part III Acoustics

IS 9779 : 1981 Sound level meters