(Latest posted on 8 Apr 2025)
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9 January 2020 Draft agenda for the 7th Worn Tyres working group session
WT-07-01
WT-07-01 2020-01-09
16 January 2020 Worn Tyres: Matrix for conducting testing of tyres
WT-07-02
WT-07-02 2020-01-16
20 January 2020 Minutes of the 7th Worn Tyres working group session
WT-07-03
WT-07-03 2020-01-20
20 January 2020 Participants list from the 7th Worn Tyres working group session
WT-07-04
WT-07-04 2020-01-20
24 January 2020 Draft agenda for the 8th Worn Tyres working group session
WT-08-01
WT-08-01 2020-01-24
24 January 2020 Draft status report of the Working Group on Worn Tyres
WT-08-02
WT-08-02 2020-01-24
4 February 2020 Proposal on winter tyres buff profile (JASIC)
WT-08-03
WT-08-03 2020-02-04
4 February 2020 Worn tyres working group testing and validation matrix
WT-08-04
WT-08-04 2020-02-04
4 February 2020 Worn tyres: Proposals on Trailer Method test campaign (JASIC)
WT-08-05
WT-08-05 2020-02-04
4 February 2020 Worn tyre wet-grip performance: Ongoing tests status (UTAC)
WT-08-06
WT-08-06 2020-02-04
4 February 2020 IWG for Wet Grip of Worn Tyres: Status report to 71st GRBP (January 2020)
WT-08-07
WT-08-07 2020-02-04
4 February 2020 Minutes of the 8th Worn Tyres Working Group session
WT-08-08
WT-08-08 2020-02-04
4 February 2020 Attendance list from the 8th Worn Tyres Working Group session
WT-08-09
WT-08-09 2020-02-04
13 February 2020 Japan comments on report of the 8th Worn Tyres working group session (Japan)
WT-09-01
WT-09-01 2020-02-13
6 March 2020 Agenda for the 8th Worn Tyres working group session
WT-09-03/Rev.2
WT-09-03/Rev.2 2020-03-06
13 February 2020 Worn Tyres working group and EU timetables
WT-09-02
WT-09-02 2020-02-13
9 March 2020 Contacts for worn tyre validation test centres
WT-09-04/Rev.2
WT-09-04/Rev.2 2020-03-09
9 March 2020 Logistical matrix for worn-tyre test procedure validations
WT-09-05/Rev.2
WT-09-05/Rev.2 2020-03-09
9 March 2020 Buffing report template for worn-tyre round robin testing
WT-09-06/Rev.1
WT-09-06/Rev.1 2020-03-09
6 March 2020 Reference Tyre and Wet Grip Index calculation: Trailer Method test campaign (JASIC)
WT-09-08
WT-09-08 2020-03-06
9 March 2020 Worn tyre testing raw data template
WT-09-07/Rev.1
WT-09-07/Rev.1 2020-03-09
9 March 2020 Worn tyres validation testing logistical principles
WT-09-09
WT-09-09 2020-03-09
9 March 2020 Worn tyres round-robin guidelines for testing centers-example
WT-09-10
WT-09-10 2020-03-09
9 March 2020 Attendance list from the 9th Worn Tyres working group session
WT-09-12
WT-09-12 2020-03-09
9 March 2020 China customs clearance for non-CCC tyres (CATARC)
WT-09-13
WT-09-13 2020-03-09
9 March 2020 Worn tyre test engagement letter (template) (CATARC)
WT-09-14
WT-09-14 2020-03-09
13 March 2020 Draft minutes of the 9th Work Tyres Working Group session
WT-09-11
WT-09-11 2020-03-13
23 April 2020 Draft agenda for the 10th Worn Tyres Working Group session
WT-10-01/Rev.1
WT-10-01/Rev.1 2020-04-23
9 April 2020 Worn tyres: Example of individual test report (JASIC)
WT-10-02
WT-10-02 2020-04-09
9 April 2020 Worn tyres: Example of aggregated test report (JASIC)
WT-10-03
WT-10-03 2020-04-09
28 April 2020 UN R117: Worn tyres and roughness measurement (Germany)
WT-10-04
WT-10-04 2020-04-28
27 April 2020 Worn tyres test program: Impact of COVID-19 for tyre logistics in Japan (JASIC)
WT-10-05
WT-10-05 2020-04-27
13 May 2020 Worn Tyres: Impact of COVID-19 on tyre industry and the informal group work plan
WT-10-06
WT-10-06 2020-05-13
13 May 2020 Status of worn tyres work plan as of 27 April
WT-10-07
WT-10-07 2020-05-13
13 May 2020 UN R117: Worn tyre buffing method (ETRMA and ETRTO)
WT-10-08
WT-10-08 2020-05-13
13 May 2020 Minutes of the 10th Worn Tyre Working Group session
WT-10-09
WT-10-09 2020-05-13
13 May 2020 Attendance list from the 10th Worn Tyres Working Group session
WT-10-10
WT-10-10 2020-05-13
25 May 2020 Draft agenda for the 11th Worn Tyres working group session
WT-11-01/Rev.1
WT-11-01/Rev.1 2020-05-25
25 May 2020 Worn tyres: Tread depth measurement locations SRTT 16’’
WT-11-02
WT-11-02 2020-05-25
25 May 2020 Life Test Study on New tyres versus Worn tyres (UTAC)
WT-11-03
WT-11-03 2020-05-25
2 June 2020 Status of the Worn Tyres informal group work plan
WT-11-04
WT-11-04 2020-06-02
2 June 2020 Worn tyres: UTAC aggregated test report (UTAC)
WT-11-05
WT-11-05 2020-06-02
2 June 2020 Participants list from the 11th Worn Tyres working group session
WT-11-06
WT-11-06 2020-06-02
2 June 2020 Minutes of the 11th Worn Tyres working group session
WT-11-07
WT-11-07 2020-06-02
22 June 2020 Draft agenda for the 12th Worn Tyres working group session
WT-12-01/Rev.1
WT-12-01/Rev.1 2020-06-22
16 June 2020 Worn tyres working group testing and validation matrix
WT-08-04/Rev.2
WT-08-04/Rev.2 2020-06-16
16 June 2020 List of contact test centers
WT-09-04/Rev.3
WT-09-04/Rev.3 2020-06-16
22 June 2020 Worn tyres: Buffing procedures preliminary experience
WT-12-03
WT-12-03 2020-06-22
22 June 2020 Status of the Worn Tyres Working Group work plan as of 18 June
WT-12-02
WT-12-02 2020-06-22
22 June 2020 Worn tyres: ETRTO response on question from IDIADA regarding tread depth measurement in shoulder zone (ETRTO)
WT-12-04
WT-12-04 2020-06-22
22 June 2020 IDIADA worn tyres aggregated testing report (IDIADA)
WT-12-06
WT-12-06 2020-06-22
23 June 2020 Worn tyres: IDIADA aggregated testing data with task force comments
WT-12-06/Rev.1
WT-12-06/Rev.1 2020-06-23
23 June 2020 Minutes of the 12th Worn Tyres Working Group session
WT-12-07
WT-12-07 2020-06-23
23 June 2020 Participants list from the 12th Worn Tyres Working Group session
WT-12-05
WT-12-05 2020-06-23
25 June 2020 Life Test Study on New Tyres vs Worn Tyres: France (UTAC)
WT-12-08
WT-12-08 2020-06-25
5 July 2020 Worn tyres: Aggregate testing reports (IDIADA)
WT-13-02
WT-13-02 2020-07-05
6 July 2020 Agenda for the 13th Worn Tyres working group session
WT-13-01
WT-13-01 2020-07-06
24 July 2020 Status of the Worn Tyres working group work plan
WT-13-03
WT-13-03 2020-07-24
24 July 2020 Worn Tyres working group draft status report to GRBP
WT-13-04
WT-13-04 2020-07-24
24 July 2020 Participants list from the 13th Worn Tyres working group session
WT-13-05
WT-13-05 2020-07-24
24 July 2020 Minutes of the 13th Worn Tyres working group session
WT-13-06
WT-13-06 2020-07-24
29 August 2020 Draft agenda for the 14th Worn Tyres working group session
WT-14-01
WT-14-01 2020-08-29
10 September 2020 Worn tyres: Aggregated testing report
WT-14-02
WT-14-02 2020-09-10
10 September 2020 Worn tyres: Test data collection tables (ETRTO)
WT-14-03
WT-14-03 2020-09-10
23 September 2020 Attendance list of the 14th Worn Tyres working group session
WT-14-06
WT-14-06 2020-09-23
23 September 2020 Minutes of the 14th Worn Tyres working group session
WT-14-05
WT-14-05 2020-09-23
23 September 2020 Work plan of the Worn Tyres working group
WT-14-04
WT-14-04 2020-09-23
23 October 2020 Status of the Worn Tyres informal group work plan
WT-15-02/Rev.1
WT-15-02/Rev.1 2020-10-23
18 October 2020 Worn tyres informal group data collection template
WT-15-03
WT-15-03 2020-10-18
23 October 2020 Worn tyres: Proposal for data sharing process (ETRTO)
WT-15-04/Rev.1
WT-15-04/Rev.1 2020-10-23
21 October 2020 Worn tyres: Guidelines for testing phase of the informal group work plan
WT-15-05/Rev.2
WT-15-05/Rev.2 2020-10-21
19 October 2020 Agenda for the 15th Worn Tyres informal group session
WT-15-01
WT-15-01 2020-10-19
20 October 2020 Worn tyres working group testing and validation matrix
WT-08-04/Rev.1
WT-08-04/Rev.1 2020-10-20
23 October 2020 Attendance list from the 15th Worn Tyres informal group session
WT-15-07
WT-15-07 2020-10-23
23 October 2020 Worn tyres data collection template (final version)
WT-15-08
WT-15-08 2020-10-23
23 October 2020 Draft report of the 15th Worn Tyres working group session
WT-15-06
WT-15-06 2020-10-23
19 November 2020 Draft agenda for the 16th Worn Tyres working group session
WT-16-01/Rev.1
WT-16-01/Rev.1 2020-11-19
16 November 2020 Worn tyres working group testing and validation matrix
WT-08-04/Rev.3
WT-08-04/Rev.3 2020-11-16
16 November 2020 SRTT 16" tread depth wear evolution measurements
WT-16-03
WT-16-03 2020-11-16
23 November 2020 Draft minutes of the 16th Worn Tyres working group session
WT-16-06
WT-16-06 2020-11-23
23 November 2020 Attendance list from the 16th Worn Tyres working group session
WT-16-05
WT-16-05 2020-11-23
23 November 2020 Status of the Worn Tyres working group work plan
WT-16-02
WT-16-02 2020-11-23
23 November 2020 Worn tyres: Proposals for sharing of the buffing reports (JATMA)
WT-16-04
WT-16-04 2020-11-23