GAR | GRBP/2022/9

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Document Title	IWG MU: Proposal for a reference document; a general approach how to handle measurement uncertainty
Reference Number	GRBP/2022/9
Date	25 Nov 2021
Summary	Text prepared by the Informal Working Group on Measurement Uncertainties (IWG MU) as a document of reference. IWG MU was given the first task to amend UN Regulations Nos. 51 and No.117 to reduce measurement uncertainties
Rulemaking Area(s)	UN R51 Vehicle Noise and UN R117 Tire Noise, Wet Adhesion, and Rolling Resistance
Proposal Status	Superseded
Meeting(s)	GRBP \| Session 75 \| 8-11 Feb 2022 7. Proposals for amendments to the Consolidated Resolution on the Construction of Vehicles 2. UN Regulation No. 51 (Noise of M and N categories of vehicles). 2. UN Regulation No. 51 (Noise of M and N categories of vehicles). 4. (d) UN Regulation No. 117 (Tyre rolling resistance, rolling noise and wet grip)
Related Documents
	GRBP-75-07		Measurement Uncertainties: Proposal for amendment to Document of Reference
	GRBP/2022/9/Rev.1		Draft revised proposal for the handling of noise measurement uncertainties
	GRBP/2022/9/Rev.1		A general approach how to handle sound measurement uncertainty (superseded)
Downloads
UNECE server	.pdf format		.docx format
Excerpts from session reports related to this document
GRBP \| Session 75 \| 8-11 Feb 2022			10. The expert from IWG MU introduced a general approach how to handle measurement uncertainties (ECE/TRANS/WP.29/GRBP/2022/9, as amended by GRBP-75-07, and GRBP-75-08). GRBP endorsed this document and requested the secretariat to publish it as a document of reference on the GRBP website. The expert from IWG MU pointed out that an amendment to this document would be presented at the next session. GRBP that WP.29 should be informed about the developed general approach to measurement uncertainties, because it could apply to UN Regulations beyond the scope of GRBP. 30. GRBP recalled that the reference document with a general approach and scientific background for handling measurement uncertainties in UN Regulations (ECE/TRANS/WP.29/GRBP/2022/9) was addressed under agenda item 2 (paragraph 10 above).