Swiss Federal Office of Metrology
22 Dec 2011 European Metrology Research Project: Automotive combustion particle metrics (METAS) PMP-26-09 2011-12-22 METAS
8 Apr 2014 Measuring soot particles from automotive exhaust emissions (METAS) PMP-30-11 2014-04-08 Summary of the PN calibration project under the European Metrology Research Programme's project on "emerging requirements for measuring pollutants from automotive exhaust emissions" (EMRP ENV-02). METAS