Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Effect of automotive parts on vehicle and engine emissions, phase II : after-market parts /
Author Carlson, Richard R.
CORP Author Olson Labs., Inc., Anaheim, Calif.;Environmental Protection Agency, Washington, D.C. Mobile Source Enforcement Div.
Publisher U.S. Environmental Protection Agency, Mobile Source Enforcement Division,
Year Published 1977
Report Number EPA/340-2-76-002; EPA-68-01-1957
Stock Number PB-266 375
OCLC Number 38254805
Subjects Automobiles--Motors--Exhaust gas. ; Automobiles--Parts.
Additional Subjects Air pollution control equipment ; Motor vehicle engines ; Components ; Exhaust emissions ; Mathematical models ; Hydrocarbons ; Carbon monoxide ; Nitrogen oxides ; Smoke ; Diesel engines ; Carburetors ; Ignition systems ; Air intakes ; Fuel systems ; Failure ; Tests ; Ranking ; Exhaust systems ; Methodology ; Heavy duty vehicles ; Catalyst reactors(Exhaust systems)
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD ARCHIVE EPA 340-2-76-002 Headquarters Library/Washington,DC 03/10/2014
EJBD  EPA 340-2-76-002 Headquarters Library/Washington,DC 10/08/2015
EKAM  EPA 340/2-76/002 Region 4 Library/Atlanta,GA 01/30/1998
EKBD  EPA-340/2-76-002 Research Triangle Park Library/RTP, NC 12/14/2001
ESAD  EPA 340-2-76-002 Region 10 Library/Seattle,WA 03/23/2010
NTIS  PB-266 375 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 01/01/1988
Collation 1 volume, various pagings ; 28 cm
This final report documents the methodology and results of Phase II of the Investigation of the Effect of Automotive Parts on Vehicle and Engine Emissions. This study was performed for the Environmental Protection Agency, Office of Mobile Source Enforcement, under Contract No. 68-01-1957. The primary objective of this study was to identify engine and emission control system components which are critical in causing excessive emissions of one or more regulated pollutants. Phase II of the study investigated the emission-criticality of after-market equipment not installed or distributed by the original engine or vehicle manufacturers. A computer model was developed to calculate and rank-order an index representing the criticality of each component type. Separate rankings were developed for HC, CO, NOx and smoke (heavy-duty diesel engines) emissions using three independent sets of input data. The index for each component type was calculated from the product of four factors representing the emission increase resulting from a component failure, the probability of component failure, the probability of component repair, and the sales volume of the component. The values of these factors were established based on data obtained from a search of technical literature and engineering analysis of system and component design or operating characteristics. The study was performed without emission or performance testing. However, a series of tests on 25 of the most emission-critical components was recommended to develop or refine data on emission increases and symptoms of failure.
"EPA/340-2-76-002." "March 1977." EPA Contract No. 68-01-1957; EPA project officer: Roy L. Reichlen. Includes bibliographical references (section R).