Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title 1979 EPA-Volkswagen light duty diesel correlation study : correlation report /
Author Scarbro, Carl.
CORP Author Environmental Protection Agency, Ann Arbor, MI. Engineering Operation Div.
Publisher [U.S. Environmental Protection Agency], Office of Mobile Source Air Pollution, Engineering Operation Division, Testing Programs Branch, Correlation Group,
Year Published 1980
Report Number EPA-AA-EOD-80-1
Stock Number PB80-178999
OCLC Number 701554298
Subjects Diesel motor exhaust gas.
Additional Subjects Automobiles ; Exhaust emissions ; Diesel engines ; Exhaust gases ; Hydrocarbons ; Diesel fuels ; Carbon monoxide ; Nitrogen oxides ; Cooling fans ; Volkswagen vehicles ; Motor vehicles(1979 models)
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
ELCD  EPA AA-EOD-80-1 NVFEL Library/Ann Arbor, MI 02/15/2011
NTIS  PB80-178999 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation [29] p. : charts ; 28 cm.
In response to a meeting with representatives of Volkswagen on September 14, 1979, a correlation study was organized to characterize some of the factors causing hydrocarbon offsets during the 1980 diesel certification program. (Volkswagen read 40% lower hydrocarbon emissions than EPA). The hypothesis presented at this time by Volkswagen were: (1) offsets do not occur because of sample line variations from lab to lab and (2) offsets are caused by diesel fuel composition differences between EPA's fuel and Volkswagen-Wolfsburg's fuel. These two hypotheses were tested in two separate experiments at EPA as part of the correlation study. In November, Volkswagen brought two vehicles to the United States and requested EPA to do a series of six Hot LA-4s on each vehicle at the EPA facility. This report is the summary of the three different studies performed in cooperation with EPA plus the results of independent Volkswagen cooling fan experiments. These studies included similar vehicles and facilities, but addressed different correlation cause/effect relationships.
Cover title. "EPA-AA-EOD-80-1."