GAR | GRB-54-06

GRB-54-06

Discussion on draft amendments to Regulation Nos. 51, 59, and 117

Source(s)

ISO

Date

13 Sep 2011

Status

Subject

UN R117 Tire Noise, Wet Adhesion, and Rolling Resistance

Meeting(s)

GRB | Session 54 | 19-21 Sep 2011

GRB has long used ISO 10844 and the ISO 362 series of standards as the part of technical basis for the referenced regulations. ISO has updated standards and sees the need to coordinate with GRB.

Downloads

UNECE server

Related documents

Excerpts from session reports

GRB | Session 54 | 19-21 Sep 2011

12. The expert from the Russian Federation introduced ECE/TRANS/WP.29/GRB/2011/11, aimed at improving the test provisions for measuring the rolling resistance of tyres. The proposal received several comments (GRB-54-02, GRB-54-08 and GRB-54-10 amongst others). The Chair of GRB introduced GRB-54-12-Rev.1 proposing to amend ECE/TRANS/WP.29/GRB/2011/11. He clarified that the proposal did not affect the existing methods but result in a further option to the deceleration method. GRB adopted ECE/TRANS/WP.29/GRB/2011/11 as reproduced by Annex III to this report. However, some GRB experts suggested further technical assessment of the proposed alternative method to the next GRB sessions. The secretariat was requested to submit the proposal to WP.29 and AC.1, for consideration at their March 2012 sessions, as draft Supplement 1 to the 02 series of amendments to Regulation No. 117.

13. GRB noted also the work progress of the Working Party on Brakes and Running Gear (GRRF) on matters of common interest with GRB (ECE/TRANS/WP.29/GRRF/2011/12, ECE/TRANS/WP.29/GRRF/2011/29, ECE/TRANS/WP.29/GRRF/2011/30, GRRF-69-23, GRRF-71-29 and GRRF-71-31). Particularly, GRB endorsed ECE/TRANS/WP.29/GRRF/2011/30, inserting a new definition of C3 class tyres adopted by GRRF at its September session.

4. The expert from ISO introduced GRB-54-06 on the review of ISO 362-1:2007 and ISO 10844:2011 standards. He sought cooperation with other GRB experts to prepare amendments to a number of Regulations under GRB responsibility, to adapt them to the technical progress and to insert proper transitional provisions. The Chair of GRB suggested that this update should concern Regulation Nos. 9, 41, 51, 59, 63, 92 and 117. GRB noted a number of comments and agreed to resume discussion on this agenda item at its February 2012 session on the basis of a concrete proposal including transitional provisions.

5. The expert from the Netherlands recalled the information (GRB-54-13) given at the thirty-sixth session of GRB concerning the significant site to site variation of low noise ISO tracks.