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ISO 13472-1:2002

ISO 13472-1:2002

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Acoustics — Measurement of sound absorption properties of road surfaces in situ — Part 1: Extended surface method

Published By Publication Date Number of Pages
ISO 2002-06 33
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This part of ISO 13472 describes a test method for measuring in situ the sound absorption coefficient of road

surfaces as a function of frequency in the range from to .

Normal incidence is assumed. However, the test method can be applied at oblique incidence although with some

limitations (see annex F). The test method is intended for the following applications:

— determination of the sound absorption properties of test tracks according to ISO 10844, with limitations, and

other similar standards;

— determination of the sound absorption properties of road surfaces in actual use;

— comparison of sound absorption design specifications of road surfaces with actual performance data of the

surface after completion of the construction work.

The complex reflection factor can also be determined by this method.

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ISO 13472-1:2002
$36.40