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 2017
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11 Jan 2017 Heavy-duty engine raw particle number measurement PMP-42-02
11 Jan 2017 Progress report of the PMP informal group to the January 2017 GRPE session PMP-42-03
11 Jan 2017 Status report on PMP informal group non-exhaust particle emissions activity PMP-42-04
11 Jan 2017 Status report on PMP informal group exhaust emissions particle measurement activities PMP-42-05
11 Jan 2017 Proposal for a “round robin” (RR-10) for PMP compliant systems modified to measure sub23 nm particles starting from approximately 10 nm PMP-42-06
11 Jan 2017 Agenda for the 42nd PMP informal group session PMP-42-01
13 Mar 2017 Dial in phone numbers for the 43rd PMP informal group session
13 Mar 2017 Dial in audio conference instructions for the 43rd PMP informal group session
15 Mar 2017 SUREAL 23: Sub-23 nm Particle Emissions from Direct Injection Engines Including Real Driving Conditions: Project update PMP-43-07
15 Mar 2017 Introductory remarks and status review for the 43rd PMP informal group session PMP-43-05
15 Mar 2017 Down to Ten: Measuring automotive exhaust particles down to 10 nanometres - Project update PMP-43-10
15 Mar 2017 PEMS4nano project update PMP-43-09
15 Mar 2017 LOWBRASYS Brake Emission Test Cycle PMP-43-11
15 Mar 2017 Measurement of Brake Wear Particle Emissions using a Dynamometer System under Urban City Driving Cycles PMP-43-12
15 Mar 2017 Characterization of particle emissions of Euro-6 passenger cars (CNG, gasoline, diesel) PMP-43-08
15 Mar 2017 Inter-Laboratory Comparison Exercise: CPC Calibration Aerosols and Laboratory Set-ups: First Results PMP-43-06
15 Mar 2017 Heavy-duty engine raw particle number measurement PMP-43-02
15 Mar 2017 Heavy-duty compressed natural gas engine particle number measurement PMP-43-03
15 Mar 2017 Agenda for the 43rd PMP informal group session PMP-43-01
16 Mar 2017 Brake Dust Measurements-Selection of the most suitable sampling method PMP-43-13
16 Mar 2017 Brake Particle Emissions Task Force: Development of a Braking Test Cycle - Progress report PMP-43-14
16 Mar 2017 Final report of the 41st PMP informal group session PMP-41-14
19 May 2017 PMP Inter-laboratory comparison exercise: CPC calibration material: 2nd stage PMP-44-03
19 May 2017 Draft agenda for the 44th PMP informal group session PMP-44-01
19 May 2017 Proposal for a “round robin” (RR-10) for PMP compliant systems modified to measure sub23 nm particles starting from approximately 10 nm. PMP-44-02
22 May 2017 Brake dust sampling and measurement PMP-44-04/Rev.1
6 Nov 2017 PMP 45th session: Information for remote participation
6 Nov 2017 Agenda for the 45th PMP informal group session PMP-45-01
7 Nov 2017 PMP informal group progress report to the GRPE June 2017 session PMP-45-02
7 Nov 2017 PMP Task Force II: Brake particle sampling and measurement PMP-45-03
7 Nov 2017 PMP sub-group on CPC calibration status PMP-45-04
7 Nov 2017 Draft minutes of the 44th PMP informal group session PMP-44-05
7 Nov 2017 Horizon 2020 Down to Ten program PMP-45-06
7 Nov 2017 Light Duty-PMP-2017/2018 Sub23nm Round Robin PMP-45-08
7 Nov 2017 Particle Number and Ash Emissions from a Heavy Duty Natural Gas and Diesel w/DPF Engine PMP-45-05
8 Nov 2017 Sureal-23 time frame PMP-45-18
8 Nov 2017 Brake dust: Analysis of influence parameters during sampling of particles with a constant volume sampling system PMP-45-17
8 Nov 2017 Feasible Methodology for Brake Wear Particles Measurement and Characterization PMP-45-16
8 Nov 2017 Design Consideration for Brake Emissions Measurements Using Inertia Dynamometer Testing PMP-45-15
8 Nov 2017 Brake Particle Emissions: Task Force 2: Brake Dust Sampling and Measurement PMP-45-14
8 Nov 2017 Particle emissions from different types of brake pads PMP-45-13
8 Nov 2017 Frictional couple emissions: evaluation procedure from the REBRAKE project PMP-45-12
8 Nov 2017 Brake particles: Influence of different process parameters during the run-in procedure on the emission behaviour PMP-45-11
8 Nov 2017 Brake Particle Emissions: Task Force 1: Development of a Braking Test Cycle PMP-45-10