IS EN ISO 140-5:1999 Acoustics - Measurement of sound insulation in buildings and of building elements. Field measurements of airborne sound insulation of facade elements and facades (Withdrawn)

Publication Year

1999

Document Status

Withdrawn

Abstract

Applies to the sound insulation of a building facade with respect to external noise such as traffic noise. The sound source for the steady state 1/3 octave band filtered level difference can be either the existing traffic noise or noise from a loudspeaker. The results, expressed as either sound reduction index or standardised level difference can be used to determine whether facades have met acoustic specifications. Method mainly intended to measure noise reduction efficiency of double glazing.

Document History

Superseded by IS EN ISO 140-5:2014 and IS EN ISO 16283-1:2014.

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