| UN R117: Proposal for Supplement 2 to the 04 series of amendments |
| Reference Number: WP.29/2024/65 |
|
Proposal to introduce measures to reduce variability in noise measurements and new test methods to measure tyre abrasion. |
| Meeting Sessions: 193rd WP.29 session (24-28 Jun 2024) |
| Document date: 08 Apr 24 |
| Document status: Adopted by WP.29 |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| UN R117: Proposal for Supplement 2 to the 03 series of amendments |
| Reference Number: WP.29/2024/72 |
|
Proposal to improve the reproducibility of the snow grip test method by replacing the current reference tyres C3 SRTTs 19.5 and 22.5 with the new reference tyres C3 SRTTs 19.5 and 22.5 siped, to make editorial improvements and updates to ISO and ASTM standards references, and to align with Supplement 2 to the 04 series of amendments, including a new temperature correction formula for the rolling sound emissions of tyres of classes C1 and C2 and to remove the content of the now obsolete Annex 4 as well as all its references. |
| Meeting Sessions: 193rd WP.29 session (24-28 Jun 2024) |
| Document date: 09 Apr 24 |
| Document status: WP.29 amended and adopted |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| UN R117: Proposal for Supplement 16 to the 02 series of amendments |
| Reference Number: WP.29/2024/73 |
|
Proposal to introduce a new temperature correction formula for the rolling sound emissions of tyres of classes C1 and C2, to remove the content of the now obsolete Annex 4 as well as all its references, to update references to standards, to improve the reproducibility of the snow grip test method by replacing the current reference tyres C3 SRTTs 19.5 and 22.5 with the new reference tyres C3 SRTTs 19.5 and 22.5 siped, and to make editorial improvements for clarity and consistency across tyre regulations. |
| Meeting Sessions: 193rd WP.29 session (24-28 Jun 2024) |
| Document date: 09 Apr 24 |
| Document status: WP.29 amended and adopted |
| Relevant to: UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
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