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 2014
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8 Jan 2014 23 nm PN Key Messages (draft) PMP-29-02
8 Jan 2014 PMP: Sub 23 nm Review PMP-29-03
8 Jan 2014 Evaluation of Airborne Tyre and Road Wear Particles PMP-29-04
8 Jan 2014 Particle emissions from tyre and brake wear: On-going literature review PMP-29-05
8 Jan 2014 Particle emissions from tyre and brake wear: Open questions PMP-29-06
8 Jan 2014 Agenda for the 29th PMP informal working group session PMP-29-01
5 Feb 2014 Report of the PMP informal group on its 28th session PMP-28-07
12 Mar 2014 Draft agenda for the 30th PMP informal group session PMP-30-01
3 Apr 2014 Volatile Particle Remover Calibration and Validation Procedures PMP-30-10
4 Apr 2014 PMP: Sub 23 nm measurement recommendations PMP-30-02
4 Apr 2014 PMP: Volatile Particle Remover calibration issues PMP-30-04
4 Apr 2014 Presentation on REBRAKE program PMP-30-06
7 Apr 2014 Particulate matter emissions from tyres and brakes: Main facts and open issues PMP-30-05
8 Apr 2014 VTI presentation: Non-exhaust particles PMP-30-13
8 Apr 2014 PMP draft recommendations for <23nm measurements PMP-30-12
8 Apr 2014 Measuring soot particles from automotive exhaust emissions PMP-30-11
8 Apr 2014 Potential Issues Related to the Measurement of PN During Regeneration of NRMM PMP-30-08
8 Apr 2014 Particle measurement during regeneration of GPF and DPF PMP-30-07
8 Apr 2014 Particle measurement: Regeneration issues PMP-30-03
8 Apr 2014 Review on engine exhaust sub-23 nm particles PMP-30-09
12 May 2014 Draft agenda for the 31st PMP informal group session PMP-31-01
12 May 2014 Non-exhaust emissions from motor vehicles: Discussion paper PMP-31-02
12 May 2014 Pollution of motor transport highways by particles from tire and road surface wear has a disastrous influence to human health PMP-31-03
14 May 2014 Draft minutes of the 29th PMP informal group session PMP-29-07
14 May 2014 Experimental Protocol for PM/PN Emissions of Periodically Regenerating Exhaust After-treatment Devices PMP-31-05
14 May 2014 JRC experimental plan concerning regeneration emissions PMP-31-04
15 Jul 2014 Japan comments on the draft guidance for the testing and measurement of PN from NRMM engines PMP-32-02
15 Jul 2014 Discussion points for the 32nd PMP informal group session PMP-32-01
30 Sep 2014 EC proposal for an EU regulation on NRMM emission limits and type-approval for NRMM engines COM(2014) 581 final
30 Sep 2014 Summary of EC NRMM emissions regulation proposal PMP-33-02
30 Sep 2014 JRC Update (Part 1): Regeneration, sub 23nm, catalytic stripper, and calibration programs PMP-33-03
30 Sep 2014 JRC Update (Part 2): Calibration program PMP-33-04
1 Oct 2014 Minutes of the 30th PMP informal group session PMP-30-14
1 Oct 2014 Draft agenda for the 33rd PMP informal group session PMP-33-01
1 Oct 2014 EU WLTP driving database short trips analysis PMP-33-05
1 Oct 2014 Draft minutes of the 31st PMP informal group session PMP-31-06
9 Oct 2014 PM Emissions from Tyres and Brakes: PMP work program introduction PMP-33-06
9 Oct 2014 REBRAKE project presentation PMP-33-07
9 Oct 2014 Evaluation of Tire Road Wear Particles (TRWP) in PM2.5 PMP-33-08