| Main Title |
Evaluation of a proportional sampler for automotive exhaust emissions / |
| Author |
Gabele., Peter A.
|
| Other Authors |
|
| CORP Author |
Environmental Sciences Research Lab., Research Triangle Park, N.C. |
| Publisher |
Environmental Sciences Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, |
| Year Published |
1977 |
| Report Number |
EPA-600/2-77-236 |
| Stock Number |
PB278186 |
| OCLC Number |
55704629 |
| Subjects |
Automobiles--Motors--Exhaust gas ;
Air--Pollution--United States--Measurement ;
Air--Pollution--Measurement
|
| Additional Subjects |
Samplers ;
Exhaust emissions ;
Hydrocarbons ;
Carbon monoxide ;
Nitrogen oxides ;
Carbon dioxide ;
Design criteria ;
Performance evaluation ;
Air pollution ;
Concentration(Composition) ;
Air pollution detection ;
Automobile exhaust ;
Light duty vehicles ;
Proportional samplers
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EJBD |
EPA 600-2-77-236 |
c.1 |
Headquarters Library/Washington,DC |
04/08/2014 |
| ELBD ARCHIVE |
EPA 600-2-77-236 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
| ELBD RPS |
EPA 600-2-77-236 |
repository copy |
AWBERC Library/Cincinnati,OH |
10/17/2014 |
| ESAD |
EPA 600-2-77-236 |
|
Region 10 Library/Seattle,WA |
03/23/2010 |
| NTIS |
PB-278 186 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
ii, 25 p. : ill. ; 28 cm. |
| Abstract |
A test program was conducted to evaluate a proportional sampler for use in automotive exhaust gas emissions research. Automobile emissions test results obtained using the proportional sampler were compared with results obtained using the conventional constant volume sampler. Measurements obtained using the proportional sampler for hydrocarbons, carbon monoxide, nitrogen oxides, and carbon dioxide are within 19, 46, 20, and 14 percent, respectively, of measurements obtained using the constant volume sampler. Such differences render the proportional sampler unacceptable as a quantitative research tool. Inability of the exhaust gas flow meter to accurately measure pulsating exhaust flow is cited as the principal cause of error in the proportional sampler. |
| Notes |
"December 1977." "EPA-600/2-77-236." Also distributed by National Technical Information Service (NTIS) as PB278186. |
