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.
| Draft GTR on Measurement of Brake Emissions for Light-Duty Vehicles |
| Reference Number: GRPE/2023/4/Rev.4 |
| Document date: 06 Jan 23 |
| Relevant to: GTR No. 24 | Laboratory Measurement of Brake Emissions for Light-Duty Vehicles |
| Click here to view the full document file |
| Agenda for the 53rd PMP informal group session |
| Reference Number: PMP-53-01 |
| Meeting Sessions: 53rd PMP session (9 Jan 2023) |
| Document date: 06 Jan 23 |
| Relevant to: GTR No. 24 | Laboratory Measurement of Brake Emissions for Light-Duty Vehicles, WP.29 Discussion Topic | Particle Measurement Programme, and WP.29 Regulatory Project | Tyre abrasion test method development |
| Click here to view the full document file |
| Draft GTR on Measurement of Brake Emissions for Light-Duty Vehicles |
| Reference Number: GRPE/2023/4/Rev.6 |
| Document date: 06 Jan 23 |
| Relevant to: GTR No. 24 | Laboratory Measurement of Brake Emissions for Light-Duty Vehicles |
| Click here to view the full document file |
| Brake emissions: Comments on the draft GTR text |
| Reference Number: PMP-53-02 |
| Submitted by: OICA |
| Meeting Sessions: 53rd PMP session (9 Jan 2023) |
| Document date: 09 Jan 23 |
| Relevant to: GTR No. 24 | Laboratory Measurement of Brake Emissions for Light-Duty Vehicles |
| Click here to view the full document file |
| Brake emissions: Part 2 of comments on the draft text (version as of 14 December 2022) |
| Reference Number: PMP-53-03 |
| Submitted by: OICA |
| Meeting Sessions: 53rd PMP session (9 Jan 2023) |
| Document date: 09 Jan 23 |
| Relevant to: GTR No. 24 | Laboratory Measurement of Brake Emissions for Light-Duty Vehicles |
| Click here to view the full document file |
| Brake emissions: Latest changes to the draft GTR text |
| Reference Number: PMP-53-04 |
| Submitted by: JRC |
| Meeting Sessions: 53rd PMP session (9 Jan 2023) |
| Document date: 09 Jan 23 |
| Relevant to: GTR No. 24 | Laboratory Measurement of Brake Emissions for Light-Duty Vehicles |
| Click here to view the full document file |
| Particle Emissions From Brake and Tyre Wear – Results from the Phase 1 study for the UK DfT |
| Reference Number: PMP-53-05 |
| Submitted by: DfT and Ricardo |
| Meeting Sessions: 53rd PMP session (9 Jan 2023) |
| Document date: 10 Jan 23 |
| Relevant to: GTR No. 24 | Laboratory Measurement of Brake Emissions for Light-Duty Vehicles and WP.29 Regulatory Project | Tyre abrasion test method development |
| Click here to view the full document file |
| Brake emissions: Overview of the GTR proposal submitted to GRPE |
| Reference Number: PMP-53-07 |
| Submitted by: LINK |
| Meeting Sessions: 53rd PMP session (9 Jan 2023) |
| Document date: 12 Jan 23 |
| Relevant to: GTR No. 24 | Laboratory Measurement of Brake Emissions for Light-Duty Vehicles |
| Click here to view the full document file |
| Catalytic Stripper: Oxidation Efficiency Measurement with Propane |
| Reference Number: PMP-53-06 |
| Submitted by: Catalytic Instruments |
| Meeting Sessions: 53rd PMP session (9 Jan 2023) |
| Document date: 09 Jan 23 |
| Relevant to: WP.29 Discussion Topic | Particle Measurement Programme |
| Click here to view the full document file |
| Report from the 53rd PMP informal group session |
| Reference Number: PMP-53-08 |
| Meeting Sessions: 53rd PMP session (9 Jan 2023) |
| Document date: 25 Jan 23 |
| Relevant to: GTR No. 24 | Laboratory Measurement of Brake Emissions for Light-Duty Vehicles, WP.29 Discussion Topic | Particle Measurement Programme, and WP.29 Regulatory Project | Tyre abrasion test method development |
| Click here to view the full document file |
| Status of PMP informal group activities |
| Reference Number: PMP-53.1-03 |
| Meeting Sessions: PMP-53.1 (27 Apr 2023) |
| Document date: 27 Apr 23 |
| Relevant to: GTR No. 24 | Laboratory Measurement of Brake Emissions for Light-Duty Vehicles and WP.29 Discussion Topic | Particle Measurement Programme |
| Click here to view the full document file |
| Brake emissions: Proposal for a new UN GTR on Laboratory Measurement (Cheat Sheet summary) |
| Reference Number: PMP-53-09 |
| Submitted by: LINK |
| Meeting Sessions: 53rd PMP session (9 Jan 2023) |
| Document date: 21 Mar 23 |
| Relevant to: GTR No. 24 | Laboratory Measurement of Brake Emissions for Light-Duty Vehicles |
| Click here to view the full document file |
| Input for brake emissions GTR |
| Reference Number: PMP-53.1-04 |
| Submitted by: OICA |
| Meeting Sessions: PMP-53.1 (27 Apr 2023) |
| Document date: 27 Apr 23 |
| Relevant to: GTR No. 24 | Laboratory Measurement of Brake Emissions for Light-Duty Vehicles |
| Click here to view the full document file |
| Calibration of PN systems |
| Reference Number: PMP-53.1-02 |
| Meeting Sessions: PMP-53.1 (27 Apr 2023) |
| Document date: 27 Apr 23 |
| Relevant to: WP.29 Discussion Topic | Particle Measurement Programme |
| Click here to view the full document file |
| Agenda for the PMP web conference on 27 April 2023 |
| Reference Number: PMP-53.1-01 |
| Meeting Sessions: PMP-53.1 (27 Apr 2023) |
| Document date: 27 Apr 23 |
| Relevant to: GTR No. 24 | Laboratory Measurement of Brake Emissions for Light-Duty Vehicles and WP.29 Discussion Topic | Particle Measurement Programme |
| Click here to view the full document file |
| Brake emissions: Experimental Influence Analysis of the Sampling of Passenger Car Brake Particle Emissions on a Dynamometer |
| Reference Number: PMP-53.1-05 |
| Submitted by: Continental |
| Meeting Sessions: PMP-53.1 (27 Apr 2023) |
| Document date: 27 Apr 23 |
| Relevant to: GTR No. 24 | Laboratory Measurement of Brake Emissions for Light-Duty Vehicles |
| Click here to view the full document file |
| Brake Particle Emissions in Regenerative Braking or Cycle with "Extra-High" |
| Reference Number: PMP-53.1-06 |
| Submitted by: JARI |
| Meeting Sessions: PMP-53.1 (27 Apr 2023) |
| Document date: 27 Apr 23 |
| Relevant to: GTR No. 24 | Laboratory Measurement of Brake Emissions for Light-Duty Vehicles |
| Click here to view the full document file |
| Minutes from the PMP web conference on 27 April 2023 |
| Reference Number: PMP-53.1-07 |
| Meeting Sessions: PMP-53.1 (27 Apr 2023) |
| Document date: 04 May 23 |
| Relevant to: GTR No. 24 | Laboratory Measurement of Brake Emissions for Light-Duty Vehicles and WP.29 Discussion Topic | Particle Measurement Programme |
| Click here to view the full document file |
| PMP: Agenda for the 24 May 2023 web conference |
| Reference Number: PMP-53.2-01 |
| Meeting Sessions: PMP-53.2 (24 May 2023) |
| Document date: 19 May 23 |
| Relevant to: WP.29 Discussion Topic | Particle Measurement Programme |
| Click here to view the full document file |
| Draft update to the PMP informal group terms of reference |
| Reference Number: PMP-53.2-02 |
| Meeting Sessions: PMP-53.2 (24 May 2023) |
| Document date: 19 May 23 |
| Relevant to: GTR No. 24 | Laboratory Measurement of Brake Emissions for Light-Duty Vehicles and WP.29 Discussion Topic | Particle Measurement Programme |
| Click here to view the full document file |
| Brake emissions GTR: Proposal for Annex C |
| Reference Number: PMP-53.1-08 |
| Meeting Sessions: PMP-53.1 (27 Apr 2023) |
| Document date: 28 Apr 23 |
| Relevant to: GTR No. 24 | Laboratory Measurement of Brake Emissions for Light-Duty Vehicles |
| Click here to view the full document file |
| Brake emissions GTR: Proposal for the Annex C |
| Reference Number: PMP-53.2-03 |
|
Proposal for the annex concerning the procedure to determine vehicle-specific friction braking share coefficients. |
| Meeting Sessions: PMP-53.2 (24 May 2023) |
| Document date: 23 May 23 |
| Relevant to: GTR No. 24 | Laboratory Measurement of Brake Emissions for Light-Duty Vehicles |
| Click here to view the full document file |
| Opinion on case-specific friction braking share coefficients methodology |
| Reference Number: PMP-53.2-04 |
| Submitted by: JRC |
| Meeting Sessions: PMP-53.2 (24 May 2023) |
| Document date: 24 May 23 |
| Relevant to: GTR No. 24 | Laboratory Measurement of Brake Emissions for Light-Duty Vehicles |
| Click here to view the full document file |
| Brake emissions GTR: Input to the PMP informal group |
| Reference Number: PMP-53.2-05 |
|
| Submitted by: OICA |
| Meeting Sessions: PMP-53.2 (24 May 2023) |
| Document date: 24 May 23 |
| Relevant to: GTR No. 24 | Laboratory Measurement of Brake Emissions for Light-Duty Vehicles |
| Click here to view the full document file |
| Minutes of the PMP informal group session on 24 May 2023 |
| Reference Number: PMP-53.2-06 |
| Meeting Sessions: PMP-53.2 (24 May 2023) |
| Document date: 06 Jun 23 |
| Relevant to: GTR No. 24 | Laboratory Measurement of Brake Emissions for Light-Duty Vehicles and WP.29 Discussion Topic | Particle Measurement Programme |
| Click here to view the full document file |
| Brake emissions: Proposal for Annex C text |
| Reference Number: PMP-53.3-02 |
|
Proposal concerning the annex on the procedure to determine vehicle-specific friction-braking share coefficients. |
| Meeting Sessions: PMP-53.3 (29 Jun 2023) |
| Document date: 26 Jun 23 |
| Relevant to: GTR No. 24 | Laboratory Measurement of Brake Emissions for Light-Duty Vehicles |
| Click here to view the full document file |
| Agenda for the 29 June 2023 PMP informal group session |
| Reference Number: PMP-53.3-01 |
| Meeting Sessions: PMP-53.3 (29 Jun 2023) |
| Document date: 26 Jun 23 |
| Relevant to: GTR No. 24 | Laboratory Measurement of Brake Emissions for Light-Duty Vehicles, WP.29 Discussion Topic | Non-Exhaust Particle Emissions, and WP.29 Discussion Topic | Particle Measurement Programme |
| Click here to view the full document file |
| PMP informal group: Updated terms of reference (final version) |
| Reference Number: PMP-53.3-03 |
| Meeting Sessions: PMP-53.3 (29 Jun 2023) |
| Document date: 29 Jun 23 |
| Relevant to: UN Regulation No. 49 | Diesel and CNG/LNG Engine Emissions, UN Regulation No. 83 | Motor Vehicle Emissions, GTR No. 15 | Worldwide Harmonized Light Vehicle Emissions Test Procedure, WP.29 Discussion Topic | Particle Measurement Programme, GTR No. 24 | Laboratory Measurement of Brake Emissions for Light-Duty Vehicles, and WP.29 Regulatory Project | Tyre abrasion test method development |
| Click here to view the full document file |
| Overview slides for the PMP informal group session on 29 June 2023 |
| Reference Number: PMP-53.3-04 |
| Meeting Sessions: PMP-53.3 (29 Jun 2023) |
| Document date: 30 Jun 23 |
| Relevant to: GTR No. 24 | Laboratory Measurement of Brake Emissions for Light-Duty Vehicles, WP.29 Discussion Topic | Particle Measurement Programme, and WP.29 Regulatory Project | Tyre abrasion test method development |
| Click here to view the full document file |
| Brake Emissions: Replacement Brake Parts |
| Reference Number: PMP-53.3-05 |
| Submitted by: JRC |
| Meeting Sessions: PMP-53.3 (29 Jun 2023) |
| Document date: 30 Jun 23 |
| Relevant to: GTR No. 24 | Laboratory Measurement of Brake Emissions for Light-Duty Vehicles |
| Click here to view the full document file |
| OICA Working-Group on Ducting & Enclosure for brake emission testing |
| Reference Number: PMP-53.3-06 |
| Submitted by: OICA |
| Meeting Sessions: PMP-53.3 (29 Jun 2023) |
| Document date: 19 Jun 23 |
| Relevant to: GTR No. 24 | Laboratory Measurement of Brake Emissions for Light-Duty Vehicles |
| Click here to view the full document file |
| Filter Systems for Brake Emission Reduction |
| Reference Number: PMP-53.3-07 |
| Submitted by: Mann+Hummel |
| Meeting Sessions: PMP-53.3 (29 Jun 2023) |
| Document date: 29 Jun 23 |
| Relevant to: GTR No. 24 | Laboratory Measurement of Brake Emissions for Light-Duty Vehicles |
| Click here to view the full document file |
| New Research on Brake Wear Particulate Matter Emissions from Several Heavy Truck Vocations in California |
| Reference Number: PMP-53.3-08 |
| Submitted by: ERG, LINK, and Caltrans |
| Meeting Sessions: PMP-53.3 (29 Jun 2023) |
| Document date: 29 Jun 23 |
| Relevant to: GTR No. 24 | Laboratory Measurement of Brake Emissions for Light-Duty Vehicles |
| Click here to view the full document file |
| Minutes of the 29 June 2023 PMP informal group session |
| Reference Number: PMP-53.3-09 |
| Meeting Sessions: PMP-53.3 (29 Jun 2023) |
| Document date: 07 Jul 23 |
| Relevant to: GTR No. 24 | Laboratory Measurement of Brake Emissions for Light-Duty Vehicles, WP.29 Discussion Topic | Particle Measurement Programme, and WP.29 Regulatory Project | Tyre abrasion test method development |
| Click here to view the full document file |
| Agenda for the PMP web conference on 28 September 2023 |
| Reference Number: PMP-53.4-01 |
| Meeting Sessions: PMP-53.4 (28 Sep 2023) |
| Document date: 25 Sep 23 |
| Relevant to: GTR No. 24 | Laboratory Measurement of Brake Emissions for Light-Duty Vehicles and WP.29 Discussion Topic | Particle Measurement Programme |
| Click here to view the full document file |
| GTR 24: Temperature limits for non-gray cast iron rotors |
| Reference Number: PMP-53.4-06 |
| Submitted by: OICA |
| Meeting Sessions: PMP-53.4 (28 Sep 2023) |
| Document date: 28 Sep 23 |
| Relevant to: GTR No. 24 | Laboratory Measurement of Brake Emissions for Light-Duty Vehicles |
| Click here to view the full document file |
| Working-Group on Ducting & Enclosure for brake emission testing |
| Reference Number: PMP-53.4-07 |
| Submitted by: OICA |
| Meeting Sessions: PMP-53.4 (28 Sep 2023) |
| Document date: 29 Sep 23 |
| Relevant to: GTR No. 24 | Laboratory Measurement of Brake Emissions for Light-Duty Vehicles |
| Click here to view the full document file |
| Brake Emission PM Repeatability Assessment |
| Reference Number: PMP-53.4-05 |
| Submitted by: AVL |
| Meeting Sessions: PMP-53.4 (28 Sep 2023) |
| Document date: 28 Sep 23 |
| Relevant to: GTR No. 24 | Laboratory Measurement of Brake Emissions for Light-Duty Vehicles |
| Click here to view the full document file |
| Priorities for GTR-24 Amendment and Beyond |
| Reference Number: PMP-53.4-04 |
|
Comments on
|
| Submitted by: OICA |
| Meeting Sessions: PMP-53.4 (28 Sep 2023) |
| Document date: 28 Sep 23 |
| Relevant to: GTR No. 24 | Laboratory Measurement of Brake Emissions for Light-Duty Vehicles |
| Click here to view the full document file |
| GTR 24: Proposal for amendments |
| Reference Number: PMP-53.4-03 |
| Submitted by: Horiba |
| Meeting Sessions: PMP-53.4 (28 Sep 2023) |
| Document date: 28 Sep 23 |
| Relevant to: GTR No. 24 | Laboratory Measurement of Brake Emissions for Light-Duty Vehicles |
| Click here to view the full document file |
| Brake Emissions – Replacement Drum Brake Parts |
| Reference Number: PMP-53.4-02/Rev.1 |
| Meeting Sessions: PMP-53.4 (28 Sep 2023) |
| Document date: 28 Sep 23 |
| Relevant to: GTR No. 24 | Laboratory Measurement of Brake Emissions for Light-Duty Vehicles |
| Click here to view the full document file |
| PMP: Minutes of the 28 September 2023 web conference |
| Reference Number: PMP-53.4-08 |
| Meeting Sessions: PMP-53.4 (28 Sep 2023) |
| Document date: 02 Oct 23 |
| Relevant to: GTR No. 24 | Laboratory Measurement of Brake Emissions for Light-Duty Vehicles and WP.29 Discussion Topic | Particle Measurement Programme |
| Click here to view the full document file |
| Agenda for the PMP web conference on 22 November 2023 |
| Reference Number: PMP-53.5-01/Rev.1 |
| Meeting Sessions: PMP-53.5 (22 Nov 2023) |
| Document date: 17 Nov 23 |
| Relevant to: GTR No. 24 | Laboratory Measurement of Brake Emissions for Light-Duty Vehicles |
| Click here to view the full document file |
| PMP: Update on brake-related topics |
| Reference Number: PMP-53.5-02 |
| Submitted by: JRC |
| Meeting Sessions: PMP-53.5 (22 Nov 2023) |
| Document date: 22 Nov 23 |
| Relevant to: GTR No. 24 | Laboratory Measurement of Brake Emissions for Light-Duty Vehicles |
| Click here to view the full document file |
| Experience from new particle test equipment @ Bosch Karlsruhe: Mass-Bill, PCRF with large particles and test results |
| Reference Number: PMP-53.5-03 |
| Submitted by: Bosch |
| Meeting Sessions: PMP-53.5 (22 Nov 2023) |
| Document date: 22 Nov 23 |
| Relevant to: GTR No. 24 | Laboratory Measurement of Brake Emissions for Light-Duty Vehicles |
| Click here to view the full document file |
| Brake Emissions – Multi-filter holder device |
| Reference Number: PMP-53.5-04 |
| Submitted by: AIP |
| Meeting Sessions: PMP-53.5 (22 Nov 2023) |
| Document date: 22 Nov 23 |
| Relevant to: GTR No. 24 | Laboratory Measurement of Brake Emissions for Light-Duty Vehicles |
| Click here to view the full document file |
| GTR 24: Contribution to PMP discussions |
| Reference Number: PMP-53.5-05 |
|
| Submitted by: OICA |
| Meeting Sessions: PMP-53.5 (22 Nov 2023) |
| Document date: 22 Nov 23 |
| Relevant to: GTR No. 24 | Laboratory Measurement of Brake Emissions for Light-Duty Vehicles |
| Click here to view the full document file |
| Views on HDV brake wear particles |
| Reference Number: PMP-53.5-06 |
|
Regulatory and Technical Differences Between HDV and LDV Braking Systems and Brake Emissions. |
| Submitted by: OICA |
| Meeting Sessions: PMP-53.5 (22 Nov 2023) |
| Document date: 23 Nov 23 |
| Relevant to: GTR No. 24 | Laboratory Measurement of Brake Emissions for Light-Duty Vehicles |
| Click here to view the full document file |
| PMP: Minutes of the 22 November 2023 session |
| Reference Number: PMP-53.5-07 |
| Meeting Sessions: PMP-53.5 (22 Nov 2023) |
| Document date: 30 Nov 23 |
| Relevant to: GTR No. 24 | Laboratory Measurement of Brake Emissions for Light-Duty Vehicles |
| Click here to view the full document file |
| GTR 24: Consolidated text with proposed Amendment 1 (marked-up version) |
| Reference Number: PMP-54-03 |
| Meeting Sessions: 54th PMP session (9 Jan 2024) |
| Document date: 18 Dec 23 |
| Relevant to: GTR No. 24 | Laboratory Measurement of Brake Emissions for Light-Duty Vehicles |
| Click here to view the full document file |
| GTR 24: Consolidated text with proposed Amendment 1 (clean version) |
| Reference Number: PMP-54-04 |
| Meeting Sessions: 54th PMP session (9 Jan 2024) |
| Document date: 18 Dec 23 |
| Relevant to: GTR No. 24 | Laboratory Measurement of Brake Emissions for Light-Duty Vehicles |
| Click here to view the full document file |
| GTR 24: Informal document with tracked amendment changes |
| Reference Number: PMP-54-05 |
| Meeting Sessions: 54th PMP session (9 Jan 2024) |
| Document date: 21 Dec 23 |
| Relevant to: GTR No. 24 | Laboratory Measurement of Brake Emissions for Light-Duty Vehicles |
| Click here to view the full document file |