| 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 |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| ELCD |
EPA AA-TSS-I/M-90-7 |
|
NVFEL Library/Ann Arbor, MI |
01/17/2012 |
DISPERSAL |
| NTIS |
PB90-261470 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
iii, 32, A-9, B-9 p. ; 28 cm. |
| Abstract |
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. |
| Notes |
Technical report. "August 1990." "EPA-AA-TSS-I/M-90-7." Cover title. Includes bibliographical references. |
