| IWG MU (Measurement Uncertainties): Reference document |
| Reference Number: GRBP-74-11 |
| Meeting Sessions: 74th GRBP session (15-17 Sep 2021), 14th TFMU session (11 Oct 2021), and 13th TFMU session (13 Jul 2021) |
| Document date: 31 Aug 21 |
| Document status: Informal GR review |
| Click here to view the full document file |
| IWG MU (Measurement Uncertainties): Terms of Reference |
| Reference Number: GRBP-74-12 |
|
This revised document intended to present to amend 117 the timetable for the work related to Regulation No. 117 has been shifted with approximately 12 months for this part. |
| Meeting Sessions: 74th GRBP session (15-17 Sep 2021) and 13th TFMU session (13 Jul 2021) |
| Document date: 31 Aug 21 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions and UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
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| UN R51: Proposal to introduce a Temperature Correction for the Tyre Rolling Sound Component of Pass-by Tests |
| Reference Number: GRBP-74-13 |
|
IWG on Measurement Uncertainties identified the temperature behaviour of tyre rolling sound component as a contributor to the measurement uncertainty of pass-by noise tests. Since in UN Reg. No.117 a temperature correction of tyre rolling sound is already established the group investigated an adoption of the existing calculation procedure. Due to the different testing conditions in UN Reg. No.117, new scientific investigations and industry data in pass-by testing the group worked out a temperature correction, which is adopted to the requirements of UN Reg. No.51. |
| Meeting Sessions: 74th GRBP session (15-17 Sep 2021), 10th UNR51-DG session (21 Sep 2021), and 13th TFMU session (13 Jul 2021) |
| Document date: 03 Sep 21 |
| Document status: Informal GR review |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
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| UN R51: Proposal for Supplement 7 to 03 series of amendments |
| Reference Number: GRBP/2021/22 |
|
Proposal from the Noise Measurement Uncertainties informal group to to reduce variability of measurements. |
| Meeting Sessions: 74th GRBP session (15-17 Sep 2021), 10th UNR51-DG session (21 Sep 2021), and 13th TFMU session (13 Jul 2021) |
| Document date: 01 Jul 21 |
| Document status: Superseded |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
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| Agenda for the 13th Noise Measurement Uncertainties task force session |
| Reference Number: TFMU-13-01 |
| Meeting Sessions: 13th TFMU session (13 Jul 2021) |
| Document date: 07 Jul 21 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| UN R51: Proposal for temperature correction in 01 series of amendments |
| Reference Number: TFMU-13-02/Rev.1 |
| Meeting Sessions: 13th TFMU session (13 Jul 2021) |
| Document date: 13 Jul 21 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| Noise measurement uncertainties: Documents of Reference draft |
| Reference Number: TFMU-13-03 |
| Meeting Sessions: 13th TFMU session (13 Jul 2021) |
| Document date: 13 Jul 21 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| UN R51: Remark on temperature correction |
| Reference Number: TFMU-13-04 |
| Submitted by: ETRTO |
| Meeting Sessions: 13th TFMU session (13 Jul 2021) |
| Document date: 13 Jul 21 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions |
| Click here to view the full document file |
| Draft report of the 13th Noise Measurement Uncertainties task force |
| Reference Number: TFMU-13-05 |
| Meeting Sessions: 13th TFMU session (13 Jul 2021) |
| Document date: 22 Jul 21 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions and UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
| Noise Measurement Uncertainties task force report to GRBP |
| Reference Number: TFMU-13-06 |
| Meeting Sessions: 13th TFMU session (13 Jul 2021) |
| Document date: 03 Sep 21 |
| Relevant to: UN Regulation No. 51 | Vehicle Noise Emissions and UN Regulation No. 117 | Tire Rolling Sound Emissions, Adhesion on Wet Surfaces, and Rolling Resistance |
| Click here to view the full document file |
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