1. PN-Calibration Issues
Herzlich willkommen!
Guten Tag L +G
My name is Stefan Carli
I am a specialist for PN measurements and calibration working for EAPF
my presentation is focusing on the PN PEMS measurement procedure
PN-Calibration Issues

2. JRC Inter-Laboratory Comparison Exercise
JRC Inter-Laboratory Comparison Exercise

3. JRC Inter-Laboratory Comparison Exercise
JRC Inter-Laboratory Comparison Exercise

4. JRC Inter-Laboratory Comparison Exercise
Unexpected huge difference between certified Labs during ILCE
Reason for differences must be examined:
PN calibration issue?
Set up influences?
Accuracy requirements?

5. Equivalency of calibration approach?

6. Equivalency of calibration approach?

7. Equivalency of calibration approach?

8. Equivalency of calibration approach?

9. Equivalency of calibration approach?
State of the art calibration to be evaluated
PN calibration traceability chain?
Maximum possible error
Potential improvements?
Recommendations for best practice necessary!

10. Backup

11. JRC Inter-Laboratory Comparison Exercise
JRC Inter-Laboratory Comparison Exercise
Particle detector

12. ILCE instrumentation set up
PMP-Tailpipe
Chassis dyno
PN-PEMS 2
Raw exhaust
EFM
Gas PEMS
PN-PEMS 1
Dilution tunnel (CVS)
Dilution air
PMP-CVS
Verdampfungs - -
tunnel
CPC
CPC
PND 2
PND 2
PND 1
PND 1
VPR
VPR