||Accuracy audit of vehicle inspection and maintenance programs : final report /
Reese, James L.
||Scott Environmental Technology, Inc., San Bernardino, CA.;Environmental Protection Agency, Washington, DC. Mobile Source Enforcement Div.
|| U.S. Environmental Protection Agency, Mobile Source Enforcement Division, Technical Support Branch,
||EPA-300/03-79-001; 2587-01-0179; EPA-68-01-3946
Vehicle Emission Standards. ;
Motor Vehicle Inspection. ;
Automobiles--Motors--Exhaust gas. ;
Automobiles--Maintenance and repair. ;
Automobiles--Inspection--United States--States. ;
Automobiles--Pollution control devices--Maintenance and repair. ;
Automobiles--Pollution control devices--Inspection.
Motor vehicles ;
Exhaust emissions ;
Carbon monoxide ;
Statistical analysis ;
Vehicle inspection ;
Exhaust system inspection ;
||NVFEL Library/Ann Arbor, MI
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||1 v. (various pagings) : ill., charts ; 28 cm.
An audit for the Environmental Protection Agency of vehicle exhaust emission measuring instrumentation currently in use at vehicle inspection and maintenance stations was conducted. Calibration gas standards were introduced into the instruments and responses recorded. Functional checks of the instruments were also made and information on instrument reliability and calibration procedures was collected. Results generally showed the instruments to be in good condition with readings within 6 percent of the standard gases for both hydrocarbons and carbon monoxide. Graphical and statistical analysis of the results showed significant variations in the measurements at only a few locations. Although the basic instrumentation at each station was very similar, the degree of computer automation and instrument calibration procedures varied widely from program to program.
"EPA-300/03-79-001." "March 1979." "EPA Project Officer: James Caldwell"--T.p. "EPA Contract No.: 68-01-3946"--T.p.