ISO/TC 31

Projekta Nr.ISO 20908:2023
Nosaukums<p class="MsoBodyText" style="mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'MS Mincho';">This document specifies methods for measuring tyre-to-road sound emissions from tyres fitted on rig that applies the tyre on a rotating drum under coast-by conditions (i.e. when the tyre is in free‑rolling, non‑powered operation).</span></p> <p class="MsoBodyText" style="mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'MS Mincho';">The specifications are intended to achieve a correlation between results of testing the exterior noise of tyres in a semi anechoic chamber and outdoor testing as described in </span><span class="stdpublisher"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; color: black; mso-color-alt: windowtext; border: none;"><span style="border: none;">ISO</span></span></span><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'MS Mincho';"> <span class="stddocNumber"><span style="color: black; mso-color-alt: windowtext; border: none;"><span style="border: none;">13325</span></span></span>.</span></p> <p class="MsoBodyText" style="mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'MS Mincho';">This document is applicable to passenger cars and light commercial vehicles tyres as defined in </span><span class="citesec"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; color: black; mso-color-alt: windowtext; border: none;"><span style="border: none;">3.1</span></span></span><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'MS Mincho';">. It is not intended to be used to determine the sound contribution of tyres applying a torque, nor for the determination of traffic sound nuisance at a given location.</span></p>
Reģistrācijas numurs (WIID)79096
Darbības sfēra<p class="MsoBodyText" style="mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'MS Mincho';">This document specifies methods for measuring tyre-to-road sound emissions from tyres fitted on rig that applies the tyre on a rotating drum under coast-by conditions (i.e. when the tyre is in free‑rolling, non‑powered operation).</span></p> <p class="MsoBodyText" style="mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'MS Mincho';">The specifications are intended to achieve a correlation between results of testing the exterior noise of tyres in a semi anechoic chamber and outdoor testing as described in </span><span class="stdpublisher"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; color: black; mso-color-alt: windowtext; border: none;"><span style="border: none;">ISO</span></span></span><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'MS Mincho';"> <span class="stddocNumber"><span style="color: black; mso-color-alt: windowtext; border: none;"><span style="border: none;">13325</span></span></span>.</span></p> <p class="MsoBodyText" style="mso-layout-grid-align: none; text-autospace: none;"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'MS Mincho';">This document is applicable to passenger cars and light commercial vehicles tyres as defined in </span><span class="citesec"><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; color: black; mso-color-alt: windowtext; border: none;"><span style="border: none;">3.1</span></span></span><span lang="EN-GB" style="mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 'MS Mincho';">. It is not intended to be used to determine the sound contribution of tyres applying a torque, nor for the determination of traffic sound nuisance at a given location.</span></p>
StatussStandarts spēkā
ICS grupa17.140.30
83.160.10