GAR | GRBP-78-07

Document Number GRBP-78-07

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Document title	Measurement Uncertainties when Testing in WP.29 GRBP Vehicle Regulations
Date	20 Jul 2023			Proposal for a reference document concerning a general approach for how to handle measurement uncertainties under UN Regulations within the purview of GRBP.

Status
Rulemaking area(s)	UN R9 Three-Wheeled Cycle Noise UN R28 Audible Warning Devices UN R30 Pneumatic Tires UN R41 Motorcycle Noise UN R51 Vehicle Noise UN R54 CV Tires UN R59 Replacement Silencing Systems UN R63 Moped Noise UN R64 Spare Tires UN R75 Motorcycle Tires UN R92 Motorcycle RESS UN R106 Agricultural Tires UN R108 Retreaded Tires UN R109 CV Retreaded Tires UN R117 Tire Noise, Wet Adhesion, and Rolling Resistance UN R124 Passenger Car/Trailer Wheels UN R138 Quiet Road Transport Vehicles UN R141 Tyre Pressure Monitoring Systems UN R142 Tyre Installation UN R164 Studded Tyres UN R165 Reversing Warning
Meeting(s)	GRBP \| Session 78 \| 30 Aug-1 Sep 2023 Agenda item 3. UN Regulation No. 51 (Noise of M and N categories of vehicles) Agenda item 7. (c) UN Regulation No. 117 (Tyre rolling resistance, rolling noise and wet grip) Agenda item 7. (b) UN Regulation No. 106 (Tyres for agricultural vehicles and their trailers)
Related documents
Related documents	GRBP/2024/2		UN R138: Proposal for a new 03 series of amendments (Formal GR review)
Downloads:		.pdf format	.docx format
Excerpts from session reports related to this document
GRBP \| Session 78 \| 30 Aug-1 Sep 2023			5. The experts of IWG MU introduced a new draft document for reference on measurement uncertainties which addressed UN Regulations Nos. 51 and 117 as a first step (GRBP-78-07). The experts from France and the United Kingdom posed questions, while the experts from Germany and the Netherlands pointed out a large test track uncertainty. The Chair invited IWG MU to liaise with the above experts with the aim to prepare a revised document for the next session.