Proposal for amendments to Regulation No. 109
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Proposal to

  1. change measurement units for drum speed in Annex 7 from min-1 to km.h-1 to align the requirements with other tyre regulations;
  2. correct wording from “speed category symbol” to “speed symbol” (as defined in para. 2.33);
  3. correct wording from “load capacity index” to “load index” (as defined in para. 2.32);
  4. correct a reference to para. 3.2.13. of the Regulation in Annex 7, Appendix 1;
  5. correct a boundary value of load index in Annex 7, Appendix 1;
  6. delete in paragraph 2.1 in Annex 7, the possibility to use the 2.0 m drum diameter to perform the endurance test; and
  7. align the text of Annex 10 with Annex 7 of UN R117 pursuant to the adoption of Supplement 5 to the 02 series of amendments to that regulation.

Reference Number: GRRF-81-12
Origin: ETRTO
Date: 27 January 2016
Proposal Status: Superseded
Related Documents:
GRRF-80-16 | Proposal for amendments to document GRRF/2015/39 concerning UN Regulation No. 109
GRRF/2015/39 | Proposal for an amendment to Regulation No. 109
GRRF/2016/40 | Proposal for amendment to Regulation No. 109
Working Party on Brakes and Running Gear | Session 81 | 1-5 Feb 2016

39. The expert from ETRTO presented GRRF-81-12 proposing editorial corrections in Annex 7 and Annex 10 of the Regulation, to align the requirements with those of other tyre Regulations and on the provisions for tests performed on two metre test drums. GRRF requested the secretariat to distribute this document with an official symbol at the next GRRF session.