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Document Title
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Proposal for Supplement 8 to Regulation No. 109
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Reference Number
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WP.29/2017/9
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Date
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Summary
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Proposal to amend Annex 7 and Annex 10. This proposal would:- change measurement units for drum speed in Annex 7 from min-1 to km.h-1 to align the requirements with other tyre regulations;
- correct the wording from “speed category symbol” to “speed symbol” (as defined in para. 2.33);
- correct the wording from “load capacity index” to “load index” (as defined in para. 2.32);
- correct a reference to para. 3.2.13. of the Regulation in Annex 7, Appendix 1;
- correct a boundary value of load index in Annex 7, Appendix 1;
- delete in paragraph 2.1 in Annex 7, the possibility to use the 2.0 m drum diameter to perform the endurance test.
In Annex 10, the proposal aligns the text with Annex 7 of UN R117, 02 series of amendments, Supplement 5.
The proposal would also clarify provisions for the minimum heights for markings for tyres with nominal rim diameter codes ≥ 20 and nominal section width ≤ 235 and for tyres with nominal rim diameter codes < 20 and nominal section width > 235. The proposal also corrects tables and figures for the use of lowercase letter to denote tyre dimension specifications.
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Rulemaking Area(s)
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UN R109 CV Retreaded Tires
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Regulatory Impact
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Original text | Supplement 8
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Proposal Status
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Adopted
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Meeting(s)
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Related Documents
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GRRF/2016/40
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Proposal for amendment to Regulation No. 109
(superseded)
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GRRF/2016/41
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Proposal for amendments to Regulation No. 109
(superseded)
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Downloads
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UNECE server
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.pdf format
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.docx format
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