Particle Measurement Programme (PMP)
Reports to GRPE

The Particle Measurement Programme informal group was established to develop a more sensitive particle measurement system than the long-standing particulate matter mass measurement system. This phase concluded with the adoption into UN Regulations 83 (light duty emissions) and 49 (heavy duty emissions) of the particle number (PN) counting method, together with enhancements to the particulate mass (PM) measurement procedure. Initially the PN protocol was applied for diesel engines/vehicles only in R83.06 and [R49.0x] and subsequently has been extended to cover to spark ignition direct injection engined vehicles R83.06 (draft).

The European Union (EU) has requested further investigation of particle number emissions from spark ignition engines relating to particle size (reduction of the d50 cut off specification) and to emissions under rich operation conditions. Further activities to adapt the procedures/measurement equipment and establish appropriate limit values may be necessary based on the results of these investigations.

The PMP group expects to complete its current mission by June 2016. However, the group’s mandate could be extended in order to transpose the developed procedures into emissions-related global technical regulations, including the upcoming GTR on light vehicle emissions (WLTP).

Moreover, concerns over additional sources of particulates, such as tire and brake wear, have been raised and may require measurement procedures as well. The PMP group is developing GTR provisions for brake wear. Foundational documents can be found here.

Meetings Documents Regulations Sub-groups
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Documents 2015
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9 Jan 2015 Draft agenda for the 34th PMP informal working group session PMP-34-01
13 Jan 2015 PMP Calibration Questionnaire PMP-34-02
13 Jan 2015 Revised minutes of the 30th PMP informal group session PMP-30-14/Rev.1
13 Jan 2015 Draft minutes of the 32nd PMP informal working group session PMP-32-03
13 Jan 2015 Draft notes from the 33rd PMP informal working group session PMP-33-09
13 Jan 2015 Revised notes from the 33rd PMP informal working group session PMP-33-09/Rev.1
13 Jan 2015 PMP Informal Group: Exhaust Emissions Summary PMP-34-03
13 Jan 2015 PMP Informal Group: Non-exhaust Emissions Summary PMP-34-04
20 Feb 2015 PMP-35 session teleconferencing international access numbers
20 Feb 2015 PMP-35 session audio web conferencing instructions
20 Feb 2015 GTR No. 15 (WLTP) EC draft amendments (copy of document WLTP-DTP-LabProcICE-254/Rev2 from 2 Oct 2013) PMP-35-07
20 Feb 2015 Draft agenda for the 35th PMP informal group session PMP-35-01
20 Feb 2015 WLTP open issues PMP-35-06
2 Mar 2015 Non-Exhaust Particle Emissions: Work item 1-Typical driving patterns PMP-35-02
2 Mar 2015 Non-Exhaust Particle Emissions: Work item 4-Development of measurement techniques and sampling procedures PMP-35-05
2 Mar 2015 Non-Exhaust Particle Emissions: Work item 3-Networking and exchange of information with NEPE experts PMP-35-04
2 Mar 2015 Non-Exhaust Particle Emissions: Work item 2-Compilation and monitoring of research projects PMP-35-03
4 Mar 2015 The Tire Industry Project: Tire Road Wear Particles- Update on PM2.5 Study PMP-35-12
4 Mar 2015 Counting efficiency of different aerosols PMP-35-11
4 Mar 2015 CPC Calibration-SI Traceability PMP-35-10
4 Mar 2015 Introduction PN Counting Directly From Engine Undiluted (Raw) Exhaust Gas PMP-35-08
4 Mar 2015 Meeting notes from the 34th PMP informal working group session PMP-34-05
4 Mar 2015 PMP issues summary presentation PMP-35-09
5 Mar 2015 PMP issues summary presentation: updated PMP-35-13
5 Mar 2015 Non-exhaust emissions working documents presentation PMP-35-14
5 Mar 2015 Wear & particle emissions control in brake pads PMP-35-15
11 May 2015 Draft agenda for the 36th session of the PMP informal working group PMP-36-01
11 May 2015 WLTP: PM/PN terminology PMP-36-02
11 May 2015 PMP calibration questionnaire PMP-36-03
11 May 2015 PMP audio/web conference instructions
11 May 2015 PMP audio/web conference international access numbers
11 May 2015 PN Counting from Raw Exhaust via Fixed Dilution PMP-36-04
7 Oct 2015 PMP audio/web conference instructions
7 Oct 2015 Final notes from the 36th PMP informal group session PMP-36-05
7 Oct 2015 PMP audio/web conference international access numbers
8 Oct 2015 Particle measurement: Raw exhaust PN counting PMP-37-02
8 Oct 2015 PMP: Exhaust particles-Status of work items PMP-37-03
8 Oct 2015 Analysis of the WLTP in-use driving behaviour database with respect to acceleration and deceleration phases PMP-37-04
8 Oct 2015 Experiences of airborne particulates from wear process PMP-37-05
8 Oct 2015 Presentation on the TU Ilmenau-Horiba Brake Dust Project PMP-37-06
8 Oct 2015 Tire Road Wear Particles (TRWP): Results of TIP PM2.5 Global Sampling Programme PMP-37-08
18 Dec 2015 Final agenda for the 37th PMP informal group session PMP-37-01/Rev.1
18 Dec 2015 Investigation of Non-exhaust Particle Emissions under Real World Conditions from a Light Duty Vehicle PMP-37-08
18 Dec 2015 Draft meeting notes from the 37th PMP session PMP-37-09