Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title I/M test variability /
Author Landman, Larry 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 1987
Report Number EPA-AA-TSS-I/M-87-2
Stock Number PB90-250127
OCLC Number 772227323
Subjects Automobiles--Pollution control devices--Inspection. ; Automobiles--Pollution control devices--Maintenance and repair. ; Automobiles--Motors--Exhaust gas.
Additional Subjects Automobiles ; Exhaust emissions ; Inspection ; Hydrocarbons ; Carbon monoxide ; Tests ; Maryland ; Emission Test Program ; US EPA
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
ELCD  EPA AA-TSS-I/M-87-2 NVFEL Library/Ann Arbor, MI 01/17/2012
NTIS  PB90-250127 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 01/09/2020
Collation v, 35, [45] p. ; 28 cm.
The report summarizes an effort to study the emissions of vehicles that had exhibited variability on I/M tests and then to determine the effects of various preconditioning cycles on the I/M tests of those vehicles. The Federal Test Procedure hydrocarbons and carbon monoxide emissions of the vehicles continued to fail the I/M test even after loaded preconditioning tended to be higher than the emissions of the I/M-failing vehicles which passed after that loaded preconditioning. Among the closed-loop vehicles, the fuel injected cars appeared to be more likely to produce consistent I/M results than were the carbureted cars.
Technical report. Cover title. "EPA-AA-TSS-I/M-87-2." "April 1987." Includes bibliographical references (p. 35).