A total of one hundred and fifty randomly procured in-use vehicles were tested in Mesa, Arizona during the summer months of 1997. Running loss hydrocarbon emissions were measured using a dynamometer enclosed in an evaporative emissions enclosure (SHED). New vehicle evaporative emission certification test equipment specifications, test procedures, and quality control limits were used, with specified exceptions required to test publicly owned in-use vehicles. A thorough inspection of vehicle components related to evaporative emissions was performed on each vehicle following the initial test with the vehicles in the 'as-received' condition. Thirty vehicles were selected for repairs and were retested following repairs. Ten vehicles were selected for as-received replicate testing.


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    Running loss emissions from in-use vehicles

    Haskew,H.M. / Eng,K.D. / Liberty,T.F. et al. | Kraftfahrwesen | 1999


    Running Loss Emissions from In-Use Vehicles

    Haskew, Harold M. / Eng, King D. / Reuter, Robert M. et al. | SAE Technical Papers | 1999


    Running Loss Emissions from In-Use Vehicles

    Haskew, H. M. / Eng, K. D. / Liberty, T. F. et al. | British Library Conference Proceedings | 1999


    Running Loss Emissions From Gasoline-Fueled Motor Vehicles

    Lindhjem, Christian E. / Korotney, David J. | SAE Technical Papers | 1993


    Running Loss Emissions From Gasoline-Fueled Motor Vehicles

    Lindhjem, C. E. / Korotney, D. J. / Society of Automotive Engineers | British Library Conference Proceedings | 1993