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UN R51: Draft proposal for Supplement 9 to the 03 series of amendments
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Reference Number: IWGMU-22-08/Rev.1
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Draft proposal to introduce a new Annex 10 (“Estimation of the calculation of the expanded measurement uncertainties for sound measurements of Annex 3 for vehicles of category M and N”) to provide tables showing the measurement uncertainties when performing type-approval, Conformity of Production, and/or field testing (e.g. market surveillance). This work is associated with the “Document for Reference” which describes a general approach to estimating measurement uncertainties (GRBP/2022/9/Rev.1 pending consideration of Revision 2).
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Meeting Sessions: 22nd IWGMU session (25 Jan 2023)
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Document date: 30 Jan 23
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Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions
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Click here to view the full document file
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UN R51: Proposal for a Supplement 9 to the 03 series of amendments
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Reference Number: GRBP-77-09
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Proposal from the Informal Working Group on Measurement Uncertainties (IWG MU) to amend UN R51 with tables showing the measurement uncertainties when performing type-approval, COP, or field testing (e.g. market surveillance).
The measurement uncertainties developed in this Appendix are based the IWG MU work and its Document for Reference which describes a general approach to estimate measurement uncertainties (GRBP/2022/9/Rev.2). The impact of the quantities on the expanded uncertainty has been evaluated separately for run-to-run, day-to-day, vehicle-to-vehicle and site-to-site variations. Some of the different impacts are based on calculations from tolerances in Annex 3, while others are based on experiences.
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Meeting Sessions: 77th GRBP session (7-10
Feb 2023)
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Document date: 31 Jan 23
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Document status: Informal GR review
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Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions
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Click here to view the full document file
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Documents 2023
212 documents
6 Jan 2023
Worn tyres: Revised Terms of Reference of the Informal Working Group on Wet Grip Performance for Tyres in a Worn State
GRBP-77-03
12 Jan 2023
UN R51: Consolidated version of Supplement 8 to the 03 series of amendments
GRBP-77-05
19 Jan 2023
Agenda for the Worn Tyres working group workshop on water depth measurement
WT-49-01/Add.1
19 Jan 2023
Agenda for the 22nd Noise Measurement Uncertainties informal group session
IWGMU-22-01
23 Jan 2023
Agenda forthe 49th Worn Tyres working group session
WT-49-01
26 Jan 2023
UN R138: Measurement uncertainty improvement by multi-microphone
TFQRTV-05-02
28 Jan 2023
Management of noise emissions according to UN-R51-03 at low speeds vs. AVAS compliant to UN-R138
TFQRTV-05-03
28 Jan 2023
Draft Worn Tyres working group status report to GRBP
WT-49-04/Rev.1
28 Jan 2023
Minutes from the 49th Worn Tyres working group session
WT-49-05
28 Jan 2023
UN R138: Proposal for Supplement 3 to the 01 series of amendments
TFQRTV-05-04
30 Jan 2023
Worn tyres: Test center water depth measurement experience-data collection template
WT-49-02/Rev.1
30 Jan 2023
UN R117: Proposed updates to C1 tyre temperature-correction provisions
IWGMU-22-04/Rev.1
30 Jan 2023
UN R117: Rolling sound emission - C1 temperature correction proposal
IWGMU-22-05
30 Jan 2023
Attendance list from the 49th Worn Tyres working group session
WT-49-06
30 Jan 2023
Attendance list from the Worn Tyres informal group workshop session
WT-49-07
30 Jan 2023
Report from the 22nd Noise Measurement Uncertainties informal group session
IWGMU-22-10
30 Jan 2023
Noise measurement uncertainties: Proposal for Revision 2 to the Document for Reference
IWGMU-22-06/Rev.1
30 Jan 2023
Noise measurement uncertainties: Document for Reference-Proposal for editorial improvements
IWGMU-22-07/Rev.1
30 Jan 2023
Draft Noise Measurement Uncertainties informal group status report to GRBP
IWGMU-22-09/Rev.1
30 Jan 2023
UN R51: Draft proposal for Supplement 9 to the 03 series of amendments
IWGMU-22-08/Rev.1
1 Feb 2023
UN R51: Proposal for a Supplement 9 to the 03 series of amendments
GRBP-77-09
1 Feb 2023
Proposal for a Revision 2 to the general approach how to handle noise measurement uncertainty
GRBP-77-08
1 Feb 2023
A general approach how to handle noise measurement uncertainty
GRBP-77-07
2 Feb 2023
UN R117: Rolling sound emission - C1 temperature correction proposal
GRBP-77-12
2 Feb 2023
UN R117: Proposal for C1 tyre rolling noise temperature correction update
GRBP-77-11
Vehicle and Tyre Noise