| 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
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB-269 806 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
340p |
| Abstract |
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. |
