GAR | GRBP-77-12

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GRBP-77-12

UN R117: Rolling sound emission - C1 temperature correction proposal

Source(s)

Date

31 Jan 2023

Status

Informal GR review

Subject

UN R117 Tire Noise, Wet Adhesion, and Rolling Resistance

Meeting(s)

GRBP | Session 77 | 7-10 Feb 2023

Agenda item 5. (e) UN Regulation No. 117 (Tyre rolling resistance, rolling noise and wet grip)

Proposal from the Noise Measurement Uncertainties informal group for amendments to Annex 3.

Downloads

UNECE server

Related documents

Excerpts from session reports

GRBP | Session 77 | 7-10 Feb 2023

24. The expert from IWG MU proposed to update the rolling noise temperature correction for C1 tyres (GRBP-77-11 and GRBP-77-12). GRBP invited IWG MU to submit an official document for consideration at the next session.