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Informal Group
Worldwide Harmonized Light Vehicles Emissions Test Procedure
Session 31 | Web conference | 4 Jun
Six documents have been posted for this session. The latest document was posted on 3 June 2020.
Reference No. Description (click for more information)
WLTP-31-01/Rev.1
Agenda for the 31st WLTP informal group session
02 Jun 2020 Informal Group Agenda Worldwide Harmonized Light Vehicle Emissions Test Procedure WLTP Worldwide Harmonized Light Vehicles Test Procedure Light Vehicle Emissions Type Approval Test Procedure WLTP (UNR) WLTP-31-0001/Rev.1
WLTP-31-02 Not Available Not Available Informal Group Informal Documents WLTP-31-0002
WLTP-31-03 Not Available Not Available Informal Group Informal Documents WLTP-31-0003
WLTP-31-04
Status report of the WLTP Gear Shift Task Force
02 Jun 2020 Informal Group Informal Documents Worldwide Harmonized Light Vehicle Emissions Test Procedure WLTP Worldwide Harmonized Light Vehicles Test Procedure Light Vehicle Emissions Type Approval Test Procedure WLTP (UNR) WLTP-31-0004
WLTP-31-05 Not Available Not Available Informal Group Informal Documents WLTP-31-0005
WLTP-31-06 Not Available Not Available Informal Group Informal Documents WLTP-31-0006
WLTP-31-07
WLTP: Clarification of points regarding the draft UN Regulation
03 Jun 2020 Informal Group Informal Documents Light Vehicle Emissions Type Approval Test Procedure WLTP (UNR) WLTP-31-0007
WLTP-31-08
GTR 15: Input on PN measurement with SPN23 and SPN10
02 Jun 2020 Informal Group Informal Documents Worldwide Harmonized Light Vehicle Emissions Test Procedure WLTP Worldwide Harmonized Light Vehicles Test Procedure Light Vehicle Emissions Type Approval Test Procedure WLTP (UNR) Document submitted by the Informal Working Group (IWG) for the Particle Measurement Programme to inform and update the GRPE on work to amend UN GTR 15 Annexes 5, 6, 7 to:<ul><li>Modify the existing solid PN measurement methodology having a 50% cut-off size at 23 nm (SPN23) in order to allow the use of catalyzed volatile particle remover (VPR) and introduce minor improvements,</li><li>Include as a second option a solid PN measurement methodology with a 65% cut-off size at 10 nm (SPN10).</li></ul> This is the consolidated document addressing the changes to the current methodology and the proposed changes for the second options to extend the particle size detection range to 10 nm. WLTP-31-0008
WLTP-31-09
GTR 15: Note on proposed PN measurement method
02 Jun 2020 Informal Group Informal Documents Worldwide Harmonized Light Vehicle Emissions Test Procedure WLTP Worldwide Harmonized Light Vehicles Test Procedure Light Vehicle Emissions Type Approval Test Procedure WLTP (UNR) Explanatory note from the PMP informal group addressing the proposed changes to the current methodology and the proposed changes for the second alternative option to extend the particle size detection range to 10 nm particles. WLTP-31-0009
WLTP-31-10
WLTP: Tyre Rolling Resistance Classes
03 Jun 2020 Informal Group Informal Documents Worldwide Harmonized Light Vehicle Emissions Test Procedure WLTP Worldwide Harmonized Light Vehicles Test Procedure Light Vehicle Emissions Type Approval Test Procedure WLTP (UNR) WLTP-31-0010