Record Display for the EPA National Library Catalog


Main Title Testing Support for Evaluation of Inspection/Maintenance Issues (Test Group Nos. 2 and 5).
Author Ashby, H. Anthony ;
CORP Author Hamilton Test Systems, Inc., Phoenix, AZ.;Environmental Protection Agency, Ann Arbor, MI. Emission Control Technology Div.
Year Published 1979
Report Number EPA-68-03-2829;
Stock Number PB81-115099
Additional Subjects Automobiles ; Fuel consumption ; Exhaust emissions ; Maintenance ; Inspection ; Air pollution control equipment ; Exhaust gases ; Performance evaluation ; Tables(Data) ; Oregon ;
Library Call Number Additional Info Location Last
NTIS  PB81-115099 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 27p
The tests were performed to determine the effectiveness of the State's mandatory inspection and maintenance program. The effectiveness was to be determined by measuring the exhaust emissions of over 600 vehicles after inspection and maintenance and thereafter quarterly for a one-year period. Not all of the vehicles completed the full sequence of quarterly retests and therefore, as a continuation of that effort, this test group was established. Fifty quarterly retests were performed on twenty-two vehicles. Each retest included an Idle Test, FTP, and HFET at the HTS facility. A diagnostic check was performed on each vehicle prior to being preconditioned for the FTP. Thirty four vehicles with suspected EGR System malperformance were recruited for Test Group No. 5.