Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Surveillance Study of Control Equipped Heavy-Duty Gasoline Powered Vehicles.
Author Ingalls, Melvin N. ; Springer., Karl J. ;
CORP Author Southwest Research Inst., San Antonio, Tex. Vehicle Emissions Research Lab.;Environmental Protection Agency, Ann Arbor, Mich. Div. of Motor Vehicle Pollution Control.
Year Published 1972
Report Number EPA-70-113;
Stock Number PB-269 806
Additional Subjects Trucks ; Exhaust emissions ; Air pollution ; Hydrocarbons ; Carbon monoxide ; Dynamometers ; Test engines ; Data analysis ; Performance evaluation ; Tables(Data) ; Sampling ; Gasoline ; Concentration(Composition) ; Heavy duty vehicles
Library Call Number Additional Info Location Last
NTIS  PB-269 806 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 340p
This interim report covers the results of the first year of exhaust emission tests on a group of 152 heavy-duty gasoline fueled 1970 and 1971 model year vehicles. Each of the trucks were tested at four month intervals using a chassis version of the heavy-duty gasoline nine-mode Federal Test Procedure. An additional group of ten truck engines were tested on both a stationary engine dynamometer as prescribed by the FTP and on a chassis dynamometer to determine the correlation between the 2 test methods. The first objective of the project, to determine the effectiveness of exhaust emission controls on new 1970 and 1971 trucks in actual operation, has been met. The results of the initial round of tests indicate that a majority of the trucks were within the 1970 Federal standards for HC emissions and that less than half were within the standards for CO emissions.