Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title I/M test variability observed in the Louisville I/M program /
Author Landman, Larry C. ; Landman, L. C.
CORP Author Environmental Protection Agency, Ann Arbor, MI. Emission Control Technology Div.
Publisher U.S. Environmental Protection Agency, Office of Air and Radiation, Office of Mobile Sources, Emission Control Technology Division, Technical Support Staff,
Year Published 1990
Report Number EPA-AA-TSS-I/M-90-7
Stock Number PB90-261470
OCLC Number 772232087
Subjects Automobiles--Pollution control devices--Inspection--Kentucky--Louisville. ; Automobiles--Kentucky--Louisville--Pollution control devices--Maintenance and repair.
Additional Subjects Exhaust emissions ; Internal combustion engines ; Tests ; Failure ; Inspection and maintenance tests ; Preconditioning cycles ; Immediate retests
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
ELCD  EPA AA-TSS-I/M-90-7 NVFEL Library/Ann Arbor, MI 01/17/2012
NTIS  PB90-261470 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 12/03/1990
Collation iii, 32, A-9, B-9 p. ; 28 cm.
271 vehicles from the 1981 through 1988 model years that failed their regularly scheduled I/M test received extra tests while still in the inspection lane. Those extra tests consisted of an immediate retest (i.e., a second chance test) and a similar test preceded by three minutes of 2500 rpm, no-load operation. Analysis of the test results shows that the three-minute, 2500 rpm, no-load preconditioning cycle added very little over simply an immediate retest for most of the vehicles in the study; however, that preconditioning cycle did have a significant effect in reducing the failure rate of those vehicles that exceeded only the HC standard on the initial test.
Technical report. "August 1990." "EPA-AA-TSS-I/M-90-7." Cover title. Includes bibliographical references.