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From opacimetry to nanoparticle characterization: regulation,research and new national standards for exhaust gas analyzers in Europe

Published online by Cambridge University Press:  19 April 2010

P. Ulbig
P. Ulbig*
Affiliation:
Physikalisch-Technische Bundesanstalt (PTB), Bundesallee 100, 38116, Braunschweig, Germany
*
* Correspondence:Peter.Ulbig@ptb.de
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Abstract

The measurement of the car exhausts plays an important role in many countries all overthe world. Often, national legislation lays down limits to preserve the environment and,in addition, special regulations exist for the metrological control of exhaust gasanalyzers. In the 90s, opacimetry was introduced as a fast and simple measuring techniqueto qualify the exhaust systems of cars equipped with Diesel engines. However, for moderncars equipped with soot reduction systems, conventional opacimetry reaches its limits.Therefore, new exhaust gas analyzers enter the market and, in parallel, the regulations inmany countries will be modified. In terms of traceability, corresponding nationalstandards must be developed for setting up a traceability chain for this new kind ofinstrument. For this reason, research is carried out with the aim of implementing particlecounter standards for aerosols. In some countries, new set-ups are under constructionwhich may lead to future intercomparisons. Today thousands of opacimeters are still inuse, yet new instruments should comply with some of the given requirements in order toallow a smooth transition from one technique to the other. In other words, new instrumentsshould combine the principles of two different “worlds”: opacimetry and particle counting.The purpose of this paper is to give an overview of the development of new exhaust gasanalyzers as well as of new national standards and new regulations in this field.

Keywords

Opacimetryexhaust gas analyzersregulationsnanoparticle characterization
Type
Research Article
Information
International Journal of Metrology and Quality Engineering , Volume 1 , Issue 1 , 2010 , pp. 17 - 20
Copyright
© EDP Sciences 2010

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References

Umwelt- und Prognose Institut e.V., Folgen einer globalen Massenmotorisierung, UPI-Report No. 35, 1995
DELPHI, Worldwide Emissions Standards – Passenger Cars & Light Duty Trucks, DELPHI annual report, 2009
EC/692/2008, Commission Regulation (EC) No. 692/2008 of 18 July 2008 implementing and amending, Regulation (EC) No. 715/2007 of the European Parliament and of the Council on type-approval of motor vehicles with respect to emissions from light passenger and commercial vehicles (Euro 5 and Euro 6) and on access to vehicle repair and maintenance information, 2008
Instruments for measuring vehicle exhaust emissions. Part 1: Metrological and technical requirements. Part 2: Metrological controls and performance tests, OIML R-99, 2008
Schlatter, J., Measurement of Particles in Aerosols – Challenges and Solutions, Chimia 63, 665 (2009) CrossRefGoogle Scholar
Schlatter, J., LAPAZ – a laser particle counter as a primary number concentration standard, J. Aerosol Science 35, 901 (2004) Google Scholar
ISO 11614, Reciprocating internal combustion compression-ignition engines – Apparatus for measurement of the opacity and for determination of the light absorption coefficient of exhaust gas, 1999