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Date Reference Description Status
09 Jan 2020 WT-07-01
Draft agenda for the 7th Worn Tyres working group session
Informal Group Agenda Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 9 Jan 2020
16 Jan 2020 WT-07-02
Worn Tyres: Matrix for conducting testing of tyres
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 16 Jan 2020
20 Jan 2020 WT-07-03
Minutes of the 7th Worn Tyres working group session
Informal Group Report Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 20 Jan 2020
20 Jan 2020 WT-07-04
Participants list from the 7th Worn Tyres working group session
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 20 Jan 2020
24 Jan 2020 WT-08-01
Draft agenda for the 8th Worn Tyres working group session
Informal Group Agenda Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 24 Jan 2020
24 Jan 2020 WT-08-02
Draft status report of the Working Group on Worn Tyres
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 24 Jan 2020
27 Jan 2020 WT-08-03
Proposal on winter tyres buff profile
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 27 Jan 2020
27 Jan 2020 WT-08-04
Worn tyres working group testing and validation matrix
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 27 Jan 2020
27 Jan 2020 WT-08-05
Worn tyres: Proposals on Trailer Method test campaign
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 27 Jan 2020
27 Jan 2020 WT-08-06
Worn tyre wet-grip performance: Ongoing tests status
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 27 Jan 2020
27 Jan 2020 WT-08-07
IWG for Wet Grip of Worn Tyres: Status report to 71st GRBP (January 2020)
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 27 Jan 2020
04 Feb 2020 WT-08-08
Minutes of the 8th Worn Tyres Working Group session
Informal Group Report Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 4 Feb 2020
28 Jan 2020 WT-08-09
Attendance list from the 8th Worn Tyres Working Group session
Informal Group Informal 28 Jan 2020
13 Feb 2020 WT-09-01
Japan comments on report of the 8th Worn Tyres working group session
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 13 Feb 2020
05 Mar 2020 WT-09-03/Rev.2
Agenda for the 8th Worn Tyres working group session
Informal Group Agenda Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 5 Mar 2020
13 Feb 2020 WT-09-02
Worn Tyres working group and EU timetables
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 13 Feb 2020
09 Mar 2020 WT-09-04/Rev.2
Contacts for worn tyre validation test centres
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 9 Mar 2020
09 Mar 2020 WT-09-05/Rev.2
Logistical matrix for worn-tyre test procedure validations
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 9 Mar 2020
09 Mar 2020 WT-09-06/Rev.1
Buffing report template for worn-tyre round robin testing
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 9 Mar 2020
05 Mar 2020 WT-09-08
Reference Tyre and Wet Grip Index calculation: Trailer Method test campaign
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 5 Mar 2020
09 Mar 2020 WT-09-07/Rev.1
Worn tyre testing raw data template
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 9 Mar 2020
09 Mar 2020 WT-09-09
Worn tyres validation testing logistical principles
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 9 Mar 2020
09 Mar 2020 WT-09-10
Worn tyres round-robin guidelines for testing centers-example
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 9 Mar 2020
09 Mar 2020 WT-09-12
Attendance list from the 9th Worn Tyres working group session
Informal Group Informal 9 Mar 2020
09 Mar 2020 WT-09-13
China customs clearance for non-CCC tyres
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 9 Mar 2020
09 Mar 2020 WT-09-14
Worn tyre test engagement letter (template)
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 9 Mar 2020
11 Mar 2020 WT-09-11
Draft minutes of the 9th Work Tyres Working Group session
Informal Group Report Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 11 Mar 2020
23 Apr 2020 WT-10-01/Rev.1
Draft agenda for the 10th Worn Tyres Working Group session
Informal Group Agenda Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 23 Apr 2020
09 Apr 2020 WT-10-02
Worn tyres: Example of individual test report
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 9 Apr 2020
09 Apr 2020 WT-10-03
Worn tyres: Example of aggregated test report
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 9 Apr 2020
28 Apr 2020 WT-10-04
UN R117: Worn tyres and roughness measurement
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance Assessment of ISO 4287-1997 and ISO 25178-2016 (Part 1:2016 or 25178 series) regarding the reference standard for the roughness measurement. 28 Apr 2020
27 Apr 2020 WT-10-05
Worn tyres test program: Impact of COVID-19 for tyre logistics in Japan
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 27 Apr 2020
27 Apr 2020 WT-10-06
Worn Tyres: Impact of COVID-19 on tyre industry and the informal group work plan
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 27 Apr 2020
27 Apr 2020 WT-10-07
Status of worn tyres work plan as of 27 April
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 27 Apr 2020
27 Apr 2020 WT-10-08
UN R117: Worn tyre buffing method
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance Tyre Industry preliminary worn tyre definition proposal with an updated proposal for the tyre buffing method. 27 Apr 2020
08 May 2020 WT-10-09
Minutes of the 10th Worn Tyre Working Group session
Informal Group Report Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 8 May 2020
08 May 2020 WT-10-10
Attendance list from the 10th Worn Tyres Working Group session
Informal Group Report Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 8 May 2020
25 May 2020 WT-11-01/Rev.1
Draft agenda for the 11th Worn Tyres working group session
Informal Group Agenda Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 25 May 2020
25 May 2020 WT-11-02
Worn tyres: Tread depth measurement locations SRTT 16’’
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 25 May 2020
25 May 2020 WT-11-03
Life Test Study on New tyres versus Worn tyres
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 25 May 2020
02 Jun 2020 WT-11-04
Status of the Worn Tyres informal group work plan
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 2 Jun 2020
02 Jun 2020 WT-11-05
Worn tyres: UTAC aggregated test report
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 2 Jun 2020
02 Jun 2020 WT-11-06
Participants list from the 11th Worn Tyres working group session
Informal Group Report Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 2 Jun 2020
02 Jun 2020 WT-11-07
Minutes of the 11th Worn Tyres working group session
Informal Group Report Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 2 Jun 2020
21 Jun 2020 WT-12-01/Rev.1
Draft agenda for the 12th Worn Tyres working group session
Informal Group Agenda Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 21 Jun 2020
15 Jun 2020 WT-08-04/Rev.2
Worn tyres working group testing and validation matrix
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance Updated for the 12th WT working group session. 15 Jun 2020
15 Jun 2020 WT-09-04/Rev.3
List of contact test centers
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance Updated for the 12th Worn Tyres working group session. 15 Jun 2020
21 Jun 2020 WT-12-03
Worn tyres: Buffing procedures preliminary experience
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 21 Jun 2020
21 Jun 2020 WT-12-02
Status of the Worn Tyres Working Group work plan as of 18 June
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 21 Jun 2020
21 Jun 2020 WT-12-04
Worn tyres: ETRTO response on question from IDIADA regarding tread depth measurement in shoulder zone
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 21 Jun 2020
22 Jun 2020 WT-12-06
IDIADA worn tyres aggregated testing report
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 22 Jun 2020
23 Jun 2020 WT-12-06/Rev.1
Worn tyres: IDIADA aggregated testing data with task force comments
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 23 Jun 2020
23 Jun 2020 WT-12-07
Minutes of the 12th Worn Tyres Working Group session
Informal Group Report Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 23 Jun 2020
23 Jun 2020 WT-12-05
Participants list from the 12th Worn Tyres Working Group session
Informal Group Report Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 23 Jun 2020
25 Jun 2020 WT-12-08
Life Test Study on New Tyres vs Worn Tyres: France
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 25 Jun 2020
05 Jul 2020 WT-13-02
Worn tyres: Aggregate testing reports
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance Validation testing report template for consideration during the 13th informal group session. 5 Jul 2020
06 Jul 2020 WT-13-01
Agenda for the 13th Worn Tyres working group session
Informal Group Agenda Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 6 Jul 2020
22 Jul 2020 WT-13-03
Status of the Worn Tyres working group work plan
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 22 Jul 2020
22 Jul 2020 WT-13-04
Worn Tyres working group draft status report to GRBP
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 22 Jul 2020
22 Jul 2020 WT-13-05
Participants list from the 13th Worn Tyres working group session
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 22 Jul 2020
22 Jul 2020 WT-13-06
Minutes of the 13th Worn Tyres working group session
Informal Group Report Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 22 Jul 2020
29 Aug 2020 WT-14-01
Draft agenda for the 14th Worn Tyres working group session
Informal Group Agenda Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 29 Aug 2020
09 Sep 2020 WT-14-02
Worn tyres: Aggregated testing report
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 9 Sep 2020
10 Sep 2020 WT-14-03
Worn tyres: Test data collection tables
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 10 Sep 2020
23 Sep 2020 WT-14-06
Attendance list of the 14th Worn Tyres working group session
Informal Group Report Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 23 Sep 2020
15 Sep 2020 WT-14-05
Minutes of the 14th Worn Tyres working group session
Informal Group Report Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 15 Sep 2020
15 Sep 2020 WT-14-04
Work plan of the Worn Tyres working group
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 15 Sep 2020
23 Oct 2020 WT-15-02/Rev.1
Status of the Worn Tyres informal group work plan
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 23 Oct 2020
17 Oct 2020 WT-15-03
Worn tyres informal group data collection template
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 17 Oct 2020
23 Oct 2020 WT-15-04/Rev.1
Worn tyres: Proposal for data sharing process
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 23 Oct 2020
21 Oct 2020 WT-15-05/Rev.2
Worn tyres: Guidelines for testing phase of the informal group work plan
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 21 Oct 2020
19 Oct 2020 WT-15-01
Agenda for the 15th Worn Tyres informal group session
Informal Group Agenda Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 19 Oct 2020
20 Oct 2020 WT-08-04/Rev.1
Worn tyres working group testing and validation matrix
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 20 Oct 2020
23 Oct 2020 WT-15-07
Attendance list from the 15th Worn Tyres informal group session
Informal Group Report Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 23 Oct 2020
23 Oct 2020 WT-15-08
Worn tyres data collection template (final version)
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 23 Oct 2020
23 Oct 2020 WT-15-06
Draft report of the 15th Worn Tyres working group session
Informal Group Report Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 23 Oct 2020
19 Nov 2020 WT-16-01/Rev.1
Draft agenda for the 16th Worn Tyres working group session
Informal Group Agenda Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 19 Nov 2020
16 Nov 2020 WT-08-04/Rev.3
Worn tyres working group testing and validation matrix
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 16 Nov 2020
16 Nov 2020 WT-16-03
SRTT 16" tread depth wear evolution measurements
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 16 Nov 2020
21 Nov 2020 WT-16-06
Draft minutes of the 16th Worn Tyres working group session
Informal Group Report Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 21 Nov 2020
21 Nov 2020 WT-16-05
Attendance list from the 16th Worn Tyres working group session
Informal Group Report Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 21 Nov 2020
21 Nov 2020 WT-16-02
Status of the Worn Tyres working group work plan
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 21 Nov 2020
19 Nov 2020 WT-16-04
Worn tyres: Proposals for sharing of the buffing reports
Informal Group Informal Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance Tire Noise, Wet Adhesion, and Rolling Resistance Uniform provisions concerning the approval of tyres with regard to rolling sound emissions and/or to adhesion on wet surfaces and/or to rolling resistance 19 Nov 2020