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BSI PD ISO/TS 11819-3:2021

BSI PD ISO/TS 11819-3:2021

$142.49

Acoustics. Measurement of the influence of road surfaces on traffic noise – Reference tyres

Published By Publication Date Number of Pages
BSI 2021 28
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This document specifies two tyres intended to serve as reference tyres when using the close-proximity (CPX) method specified in ISO 11819-2.

The CPX method is a method for evaluating different road surfaces with respect to their influence on traffic noise, under conditions when tyre/road noise dominates. This method ideally requires the use of standardized tyres, which have noise characteristics that are broadly representative of the effect of road surfaces on the noise emission of passenger car and heavy vehicle tyres. However, such tyres are not specified in ISO 11819-2. This document serves to specify these standardized tyres.

PDF Catalog

PDF Pages PDF Title
2 National foreword
6 Foreword
7 Introduction
9 1 Scope
2 Normative references
3 Terms and definitions
10 4 General principles
11 5 Reference tyres
5.1 Tyres description
5.2 Tyre specifications
12 5.3 Tread pattern
13 5.4 Tread pattern condition
5.5 Rubber hardness
14 6 Test wheel and tyre mounting
7 Tyre run-in
8 Tyre load and inflation
9 Correction for the influence of rubber hardness on CPX levels
9.1 General
9.2 Correction to CPX levels
15 9.3 Rubber hardness coefficient
10 Correction for the influence of temperature on CPX levels
11 Measurement uncertainty assessment according to ISO/IEC Guide 98‑3
17 12 Documentation
19 Annex A (normative) Measurement of rubber hardness
22 Annex B (informative) Storage and preservation of tyres
24 Annex C (informative) Availability of the reference tyres
25 Annex D (informative) Selection of test tyres (market versus reference tyres)
26 Bibliography

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BSI PD ISO/TS 11819-3:2021
$142.49