IS 9901 : Part 5 : 1981 Measurement of sound insulation in buildings and of building elements: Part 5 Field measurements of airborne sound insulation of facade elements and facades

1 Scope

1.1 This standard (Part V) specifies field methods for measuringthe sound insulation properties of facades under particularacoustical conditions and for determining the protection affordedby the facade to the occupants of the building.

2 References

IS 2 :1960Rules for rounding off numericalvalues

IS 1885 : Part III : Sec 8 :1974 Electrotechnical vocabulary:Part III Acoustics,Section 8 Architectural acoustics

IS 6964 :1973Specification for octave, half-octave and third-octave band filters foranalyses of sound and vibrations

IS 8225 :1976Method of measurement of absorptioncoefficient in a reverberation room

IS 9901 : Part III :1981Measurement of sound insulation inbuildings and of building elements:Part III Laboratory measurements ofairborne sound insulation of buildingelements

IS 9989 :1981Assessment of noise with respect tocommunity response