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WP.29 Discussion Topic
The Particle Measurement Programme (PMP) was established to improve the sensitivity of the Particulate Matter (PM) mass measurement system for heavy and light duty vehicle emissions. PMP developed a particle number (PN) counting method for ultrafine solid particles and enhancements to the PM measurement procedure that were incorporated into UN R83 and R49. Since 2013, PMP has focused on PN as a function of particle size (mainly on the difference between the number of particles measured with the existing PMP methodology (d50=23 nm) and with systems with lower d50s, investigating the possibility to modify the existing d50 methodology from 23 to about 10 nm.
(Latest posted on 15 Jan 2024)
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15 January 2021 Updated listing of GRPE priorities for 2021
GRPE-82-06/Rev.1
GRPE-82-06/Rev.1 2021-01-15
12 January 2021 PMP: Explanatory Note for Sub-23nm particle measurement procedure for HD Engines
GRPE-82-30
GRPE-82-30 2021-01-12
13 January 2021 PMP: Proposal for sub-23nm particles measurement procedure for HD engines
GRPE-82-29/Rev.1
GRPE-82-29/Rev.1 2021-01-13
14 January 2021 PMP: Status report from IWG PMP
GRPE-82-35
GRPE-82-35 2021-01-14
22 March 2021 PMP informal group: New draft terms of reference
PMP-52.5-01
PMP-52.5-01 2021-03-22
22 March 2021 Agenda for the 53rd PMP informal group session
PMP-52.5-02
PMP-52.5-02 2021-03-22
22 March 2021 Proposal for a new Consolidated Resolution concerning Exhaust Ultra-Fine Particle Number Measurement For Heavy Duty Engines
PMP-52.5-04
PMP-52.5-04 2021-03-22
22 March 2021 Particle Measurement procedure for HD Engines
PMP-52.5-05
PMP-52.5-05 2021-03-22
23 March 2021 PMP informal group: New draft terms of reference (clean version)
PMP-52.5-06
PMP-52.5-06 2021-03-23
25 March 2021 Update on PMP exhaust emissions activities
PMP-52.5-08
PMP-52.5-08 2021-03-25
26 March 2021 Minutes of the PMP informal group web conference on 24 March 2021
PMP-52.5-09
PMP-52.5-09 2021-03-26
4 May 2021 Proposal for new Consolidated Resolution concerning Exhaust Ultra-Fine Particle Number Measurement For Heavy Duty Engines
GRPE/2022/17
GRPE/2022/17 2021-05-04
3 June 2021 UN GTR: Request for authorisation to develop regulation on brake PM and PN emissions of all types of LDV's brake systems (EC, Japan, and UK)
GRPE-83-11
GRPE-83-11 2021-06-03
3 June 2021 IWG PMP : Updated Terms of Reference and Rules of Procedure
GRPE-83-20
GRPE-83-20 2021-06-03
3 June 2021 IWG PMP Status report
GRPE-83-21
GRPE-83-21 2021-06-03
14 July 2021 Agenda for the PMP web conference on 15 July 2021
PMP-52.6-01
PMP-52.6-01 2021-07-14
16 July 2021 PMP Questionnaire: Summary of replies (EC)
PMP-52.6-08
PMP-52.6-08 2021-07-16
16 July 2021 PMP: Update on exhaust and non-exhaust vehicle emissions (EC)
PMP-52.6-09
PMP-52.6-09 2021-07-16
16 June 2021 Updated listing of GRPE priorities
GRPE-83-35
GRPE-83-35 2021-06-16
2 December 2021 Agenda for the 1 December 2021 PMP informal group web conference
PMP-52.7-01
PMP-52.7-01 2021-12-02
2 December 2021 Update on exhaust and non-exhaust vehicle emissions (EC)
PMP-52.7-02
PMP-52.7-02 2021-12-02
2 December 2021 Verifications of Direct Measurement Method for HD-PN Emissions at NTSEL (NTSEL)
PMP-52.7-03
PMP-52.7-03 2021-12-02
2 December 2021 PN sampling from the tailpipe with fixed dilution for type-approval of heavy-duty engine (ACEA and JRC)
PMP-52.7-04
PMP-52.7-04 2021-12-02
2 December 2021 Ultrafine Particle Number Measurement System Operating Under Wide Temperature Range (Beihang)
PMP-52.7-05
PMP-52.7-05 2021-12-02
2 December 2021 Introducing the Silver Particle Generator (Catalytic Instruments)
PMP-52.7-06
PMP-52.7-06 2021-12-02
2 December 2021 Tetracontane Size Distribution and Removal Efficiency (SwRI)
PMP-52.7-07
PMP-52.7-07 2021-12-02
7 December 2021 Minutes of the PMP informal group session on 1 December 2021
PMP-52.7-10
PMP-52.7-10 2021-12-07