Measuring soot particles from automotive exhaust emissions
1 Federal Institute of Metrology (METAS), Lindenweg 50, 3003 Bern-Wabern, Switzerland
3 Physikalisch-Technische Bundesanstalt (PTB), Bundesallee 100, D-38116 Braunschweig, Germany
4 Leibniz Institute for Tropospheric Research (TROPOS), Permoserstraße 15, D-04318 Leipzig, Germany
5 Joint Research Center for Energy and Transport (JRC), Via E. Fermi 2749, I-21027 Ispra, Italy
7 Danish Fundamental Metrology (DFM), Matematiktorvet 307, DK-2800 Kongens Lyngby, Denmark
8 Centre for Metrology and Accreditation (MIKES), Tekniikantie 1, FI-02151 Espoo, Finland
9 Tampere University of Technology (TUT), Korkeakoulunkatu 3, FI-33101 Tampere, Finland
10 National Physical Laboratory (NPL), Hampton Road, Teddington, TW11 0LW, United Kingdom
a Corresponding author: firstname.lastname@example.org
Published online: 19 August 2014
The European Metrology Research Programme participating countries and the European Union jointly fund a three year project to address the need of the automotive industry for a metrological sound base for exhaust measurements. The collaborative work on particle emissions involves five European National Metrology Institutes, the Tampere University of Technology, the Joint Research Centre for Energy and Transport and the Leibniz Institute for Tropospheric Research. On one hand, a particle number and size standard for soot particles is aimed for. Eventually this will allow the partners to provide accurate and comparable calibrations of measurement instruments for the type approval of Euro 5b and Euro 6 vehicles. Calibration aerosols of combustion particles, silver and graphite proof partially suitable. Yet, a consensus choice together with instrument manufactures is pending as the aerosol choice considerably affects the number concentration measurement. Furthermore, the consortium issued consistent requirements for novel measuring instruments foreseen to replace today’s opacimeters in regulatory periodic emission controls of soot and compared them with European legislative requirements. Four partners are conducting a metrological validation of prototype measurement instruments. The novel instruments base on light scattering, electrical, ionisation chamber and diffusion charging sensors and will be tested at low and high particle concentrations. Results shall allow manufacturers to further improve their instruments to comply with legal requirements.
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