PMP: Proposal for sub-23nm particles measurement procedure for HD engines
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This proposal from IWG PMP is based on the PN measurement procedure laid down in UN R49 but should be considered exclusively a technical working document. The purpose of this document is only to discuss within the PMP group the changes/additions needed to modify the PN cut-off size from 23 to approximately 10 nm and to include raw exhaust sampling

Reference Number: GRPE-82-29/Rev.1
Regarding:
PMP
Date: 11 January 2021
Proposal Status: Informal GR review
Related Documents:
PMP-52.5-05 | Particle Measurement procedure for HD Engines