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Measurement Uncertainties when Testing in WP.29 GRBP Vehicle Regulations
Document GRBP-78-07
20 July 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: Informal GR review
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Previous Documents, Discussions, and Outcomes
6. | UN Regulation No. 138 (Quiet road transport vehicles)
3. | UN Regulation No. 51 (Noise of M and N categories of vehicles)

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.

7. (b) | UN Regulation No. 106 (Tyres for agricultural vehicles and their trailers)
7. (c) | UN Regulation No. 117 (Tyre rolling resistance, rolling noise and wet grip)
Related and Previous Documents
GRBP/2024/2
Relates to UN R9 | UN R28 | UN R30 | UN R41 | UN R51 | UN R54 | UN R59 | UN R63 | UN R64 | UN R75 | UN R92 | UN R106 | UN R108 | UN R109 | UN R117 | UN R124 | UN R138 | UN R141 | UN R142 | UN R164 | UN R165 |