Draft copy for PMP informal group comment of the JRC Science and Policy Report.
B. Giechaskiel (JRC) presented the draft guidelines for standardising measurement of sub-23 nm particles. The presentation (30-02) also included information on regeneration.
There was significant discussion on the specification / details for the catalytic stripper (CS) – JRC reported that they had tested 3, with and without sulphur trap.
Discussion on CPC specification – eg how to define a 10nm CPC. TSI suggested for 10 nm CPC, that 50% cut off at 10nm, 90% at 20nm. Noted that a smaller D90 would be challenging. A 50-70% efficiency at 10nm would include many of the the existing CPCs
Agreed to review aircraft industry work with 10nm CPCs (no CS) and noted that JRC might be included in the German project on CS.
Next steps: