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Working Party on Noise and Tyres
Session 75
8-11 Feb 2022 | Geneva
Agenda Item 4. (d) UN Regulation No. 117 (Tyre rolling resistance, rolling noise and wet grip)
Documentation
Annotations
GRBP-74-04 UN R117: Proposal for amendments to the 02 series of amendments
GRBP-74-33/Rev.1 UN R117: Proposal for amendments
GRBP-74-33/Rev.1 UN R117: Proposal for amendments
GRBP-74-33/Rev.1 UN R117: Proposal for amendments
GRBP-75-25/Rev.1 UN R117: Proposal for amendments
GRBP-75-25/Rev.1 UN R117: Proposal for amendments
GRBP-75-25/Rev.1 UN R117: Proposal for amendments
GRBP-75-26/Rev.1 UN R117: Presentation on the concept for addressing wet grip on worn tyre requirements for C2 and C3 tyres
GRBP-75-29 UN R117: Proposal for amendments to the 03 series of amendments
GRBP-75-30 UN R117: Presentation on evolution of tyre limits rolling resistance in new condition wet grip in new & worn condition
GRBP-75-27 UN R117: IWG Wet Grip on Worn Tyres - status report
GRBP-75-28 UN R117: IWG WGWT - revised Terms of Reference
GRBP/2021/12 UN R117: Proposal for amendments
GRBP-75-27 UN R117: IWG Wet Grip on Worn Tyres - status report
GRBP-75-28 UN R117: IWG WGWT - revised Terms of Reference
GRBP/2022/9 IWG MU: Proposal for a reference document; a general approach how to handle measurement uncertainty

GRBP will be briefed on the activities of the IWG on Wet Grip Performance of Tyres in a Worn State (IWG WGWT).

GRBP-74-04 UN R117: Proposal for amendments to the 02 series of amendments
GRBP-74-33/Rev.1 UN R117: Proposal for amendments
GRBP-74-33/Rev.1 UN R117: Proposal for amendments
GRBP-75-25/Rev.1 UN R117: Proposal for amendments
GRBP-75-25/Rev.1 UN R117: Proposal for amendments
GRBP-75-26/Rev.1 UN R117: Presentation on the concept for addressing wet grip on worn tyre requirements for C2 and C3 tyres
GRBP-75-29 UN R117: Proposal for amendments to the 03 series of amendments
GRBP-75-30 UN R117: Presentation on evolution of tyre limits rolling resistance in new condition wet grip in new & worn condition
GRBP-75-27 UN R117: IWG Wet Grip on Worn Tyres - status report
GRBP-75-28 UN R117: IWG WGWT - revised Terms of Reference
GRBP/2021/12 UN R117: Proposal for amendments
GRBP-75-27 UN R117: IWG Wet Grip on Worn Tyres - status report
GRBP-75-28 UN R117: IWG WGWT - revised Terms of Reference
GRBP/2022/9 IWG MU: Proposal for a reference document; a general approach how to handle measurement uncertainty

GRBP will recall that, at the previous session, it adopted draft amendments on the procedure and thresholds on wet grip performance for C1 tyres in worn state and noted that, with the aim to complete the proposal and remove few square brackets, an informal document would be prepared for this session.

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