Vehicle and Tyre Noise
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21 Apr 2021 Consolidated comments on C2/C3 worn tyres wet grip test proposal WT-20-02
21 Apr 2021 Draft reference document: General Approach to Estimate Sound Measurement Uncertainties TFMU-10-02
22 Apr 2021 UN R117: Comments on temperature selection and noise measurement uncertainties TFMU-10-03
22 Apr 2021 Update on noise measurement uncertainties and heavy commercial vehicles TFMU-10-04
27 Apr 2021 Worn Tyres informal group work plan status WT-20-03
27 Apr 2021 Attendance list from the 20th Worn Tyres working group session WT-20-04
27 Apr 2021 Draft minutes from the 20th Worn Tyres informal group session WT-20-05
12 May 2021 Comments on the draft Sound Limits task force guidelines TFSL-02-04
12 May 2021 Impact assessment on Euro 5 L-category sound emissions limits TFSL-02-05
12 May 2021 Comments on the draft Sound Limits task force guidelines TFSL-02-06
13 May 2021 Comments on the draft Sound Limits task force guidelines TFSL-02-03/Rev.1
18 May 2021 UN R117: Supplement 13 excerpts relevant to worn tyres WT-21-04
18 May 2021 UN R51: Flowchart for temperature correction TFMU-11-03
18 May 2021 UN R51: Calculation tool for temperature correction TFMU-11-04
19 May 2021 Agenda for the 11th Noise Measurement Uncertainties informal group TFMU-11-01
19 May 2021 Agenda for the 20th Reversing Warning task force session TFRWS-20-01
19 May 2021 Reversing warning: Alternative test method for low level TFRWS-20-02
19 May 2021 Reversing warning: Japan views on draft para. 14.7 TFRWS-20-03
19 May 2021 Reversing warning: Treatment of devices unable to fulfill draft Parts I and II TFRWS-20-04
20 May 2021 Draft agenda for the 21st Worn Tyres working group session WT-21-01/Rev.2
20 May 2021 Worn tyres: Results of buffing procedure evaluations WT-21-05
21 May 2021 UN R117: Proposal for a Supplement 13 WT-21-03/Rev.1
21 May 2021 Study on sound level limits of M- and N-category vehicles TFSL-02-08
21 May 2021 Further details of vehicle noise issue and reviewing process in Japan TFSL-02-09
25 May 2021 Influence of humidity, temperature, and barometric pressure on sound pressure levels TFMU-11-06
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