Environment Protection Measurements by the Technical Inspection of Vehicles
Published Online: 3 FEB 2010
Copyright © 2009 ISTE Ltd.
Transverse Disciplines in Metrology
How to Cite
French College of Metrology (2009) Environment Protection Measurements by the Technical Inspection of Vehicles, in Transverse Disciplines in Metrology, ISTE, London, UK. doi: 10.1002/9780470611371.ch27
- Published Online: 3 FEB 2010
- Published Print: 1 JAN 2009
Print ISBN: 9781848210486
Online ISBN: 9780470611371
- road vehicles;
- geometrical measures;
- carbon monooxide;
- theoretical values;
- practical comparison
Environment protection measurements are being increasingly requested due to environment pollution problems. Among the most significant sources of air pollution are emissions' from road vehicles. The main reason for the pollution is exhaust gas components which have a more harmful effect – CO, CO2, O2 and HC from ignition-type engines and NOx and smoke from compression engines. Nowadays it is common to use the periodical inspection of road vehicles with the aim of obtaining knowledge of the technical level of each item and assuring safety and environmental protection. The above gases are on the list of inspected parameters.
To give more confidence to the measurement results, they contain uncertainty estimation. To correctly control the theoretically estimated uncertainty, a suitable way is to carry out comparisons of vehicle exhaust gas measurements.
In this paper we give a model of uncertainty estimation of exhaust gas measurements and results and conclusions of practical measurement comparisons carried out by the technical inspection bodies in Estonia.