Road Test Emissions Using On-board Measuring Method for Light Duty Diesel Vehicles

The paper presents the results of exhaust emission tests of diesel vehicles fitted with diesel particulate filters under real road conditions. the tests were carried out in portions of about a dozen kilometers in length under city traffic conditions. the semtech portable analyzer from sensors inc. was used to measure the exhaust emissions. the measurements of particulates matter emission used particle counter and mass spectrometer. the above results were used for defining the vehicle emissions rate which can be used for the classification of car fleets, that differ among one another in the date of manufacture hence the exhaust emissions requirements