The session will be held at the Palais des Nations, Geneva, starting at 2.30 p.m. on 28 January and concluding at 12.30 p.m. on 31 January 2020. The deadline for the submission of official working documents is 4 November 2019.
Filtered:UN R117 Tire Noise, Wet Adhesion, and Rolling ResistanceRemove filter
UN R117: Proposal for a Supplement to the 02 series of amendments
Reference Number: GRBP/2020/6
Proposal to adapt the rolling-sound measurement procedures to accommodate special C2 tyres presenting a section width wider than 200 mm, aspect ratio lower than 55, rim diameter code lower than 15 and without any dual fitting indication (i.e. the front size 175/75R15 LT and the rear size 235/50R14 LT or the front size 175/75R15 LT and the rear size 265/50R14 LT).
UN R51, UN R117 TF Measurement Uncertainties (MU): Status report
Reference Number: GRBP-71-04
GRBP to note the report from the TF MU on its aim to harmonize measures for evaluating systematic errors and random errors to improve the test procedures.
ETRTO proposal for the replacement of the current Standard Reference Test Tyre as it is being phased out as production will stop mid of 2020. Snow performance test in R117 currently requires SRTT14 as a reference tyre. SRTT14 needs to be replaced and test procedure amended.
UN R117/108/R109 Status report by the group of interested experts (GOIE ) on snow tyre provisions
Reference Number: GRBP-71-20
The status report submitted by the group of interested experts (GOIE) from Finland, Germany, Japan, Norway, Russian Federation, BIPAVER, ETRTO and OICA
UN R117 : Proposal to amend the Supplement to the 02 series of amendments
Reference Number: GRBP-71-29
The text submitted by the experts from the European Tyre and Rim Technical Organisation (ETRTO) to amend the Japanese proposal for a Supplement to the 02 series of amendments (ECE/TRANS/WP.29/GRBP/2020/6)