1. WLTP-DTP-AP, Mörsch/Astorga WLTP-DTP Subgroup Additional Pollutants DTP12 - Status Report and Open Issues WLTP-DTP-AP Status Report and Open issues

2. WLTP-DTP-AP, Mörsch/Astorga WLTP-DTP Subgroup Additional Pollutants DTP12 - Status Report and Open Issues Status Evaluation of VP2 results is mostly done NO2: Measurement method for NO2 could be confirmed Open issues regarding NO2 could be answered N2O: Not sufficient data for evaluation No open issues NH3: Not sufficient data for evaluation Remaining open issues ETOH and Aldehydes Not part of VP2 Separate validation required

3. WLTP-DTP-AP, Mörsch/Astorga WLTP-DTP Subgroup Additional Pollutants DTP12 - Status Report and Open Issues Open issues: NH3-Measurement Issue: – Measurement from raw exhaust influences subsequent CVS measurements – Not sufficient results from VP2 Available Proposals: 1.Limit sample flow and return bypass (  influence on small displacements may still be too high) 2.Additional test for NH3 (  workload) 3.Measurement from diluted exhaust (  so far no experience, difficulties expected)

4. WLTP-DTP-AP, Mörsch/Astorga WLTP-DTP Subgroup Additional Pollutants DTP12 - Status Report and Open Issues Necessary for decision: – Postpone finalization of GTR for NH3 measurement till end of 2013 Way out: – Evaluation of diluted measurement – Include in AP validation Sept 2013 Open issues: NH3-Measurement

5. WLTP-DTP-AP, Mörsch/Astorga WLTP-DTP Subgroup Additional Pollutants DTP12 - Status Report and Open Issues Open issues: N2O-Measurement Issue: – No technical issues foreseen – But not sufficient results from VP2 – In industry evaluation has been performed Way out: – Use data from industry programs to validate draft GTR

6. WLTP-DTP-AP, Mörsch/Astorga WLTP-DTP Subgroup Additional Pollutants DTP12 - Status Report and Open Issues Open issues: Measurement of EtOH and Aldehydes Issue: – No data from VP2 – New measurement methods not yet available Necessary for decision: – Postpone finalization of GTR for EtOH and Aldehydes measurement till end of 2013 Way out: – Validation will be performed separately in Sept. 2013

7. WLTP-DTP-AP, Mörsch/Astorga WLTP-DTP Subgroup Additional Pollutants DTP12 - Status Report and Open Issues Next Steps 1 Telephone Conference: NH3-Measurement Date: 5 th of February Topic: Next steps to resolve open issue: Measurement from raw exhaust influences subsequent CVS measurements 2. Face to Face meeting: Preparation of Validation Exercise Date: 7th to 8th of March Goal: Definition of measurement program, participating instruments, vehicles, test procedure 3. AP-Validation exercise Date: Sept. 2013 Ispra Duration 3 weeks Goal: Validation of EtOH and Aldehydes measurement, possibly NH3 to be included

8. WLTP-DTP-AP, Mörsch/Astorga WLTP-DTP Subgroup Additional Pollutants DTP12 - Status Report and Open Issues No data from VP2 Additional measurement campaign necessary At least two weeks, ca. sept. 2013 (depending on availability of instruments) JRC will host Instrument manufacturers methods: – AVL – Horiba – Innova (to be verified) – MAHA – Sensors GC-Method FTIR Call for instruments (on CIRCA) Vehicles: 2 different FFV, 2 Gasoline Validation of measurement of EtOH and Aldehydes