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ISO PAS 11819-4
M00001000
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ISO PAS 11819-4 1st Edition, March 15, 2013 Acoustics - Method for measuring the influence of road surfaces on traffic noise - Part 4: SPB method using backing board
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Description / Abstract: This Part of ISO 11819 specifies a modified version of the statistical pass-by (SPB) method that uses a microphone mounted on a backing board instead of a microphone in normal, free-field conditions. It is applicable to measurements taken in an urban, built-up, environment or in the presence of safety barriers, noise barriers, embankments or road cuttings.