1978-02-01

Harmonization of Testing Procedures for Automotive Exhaust Gas 780647

The legislation to limit the exhaust gas emissions of motor vehicles has led to the evolvement of a variety of measuring and testing procedures which differ from country to country.Our investigations of the mandatory exhaust test procedures existing in the US and in Europe result in proposals which could be a reliable basis of a world-wide harmonized legislation. The recommendations include an improved driving schedule, standardized sampling systems and the introduction of standard test equipment for matching the test cells. Furthermore, modifications of the current evaluation of certification, assembly-line, and in-use compliance testing are given.

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