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RECORD NUMBER: 191 OF 245

OLS Field Name OLS Field Data
Main Title Interim report for EPA/EMA cooperative test program /
Author Azary, Alex.
CORP Author Environmental Protection Agency, Ann Arbor, MI. Standards Development and Support Branch.
Publisher U.S. Environmental Protection Agency, Office of Air, Noise and Radiation, Office of Mobile Source Air Pollution Control, Emission Control Technology Division, Standards Development and Support Branch,
Year Published 1982
Report Number EPA-AA-SDSB-82-08
Stock Number PB82-238049
OCLC Number 724591425
Subjects Motor vehicles--Motors--Exhaust gas. ; Air--Pollution--Research. ; Air quality management.
Additional Subjects Air pollution ; Exhaust emissions ; Particles ; Laboratory equipment ; Diesel engine exhaust ; Heavy duty vehicles
Internet Access
Description Access URL
http://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=9100X1BV.PDF
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
ELCD  EPA AA-SDSB-82-08 NVFEL Library/Ann Arbor, MI 05/23/2011
NTIS  PB82-238049 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation [i], 10 p. ; 28 cm.
Abstract
The Engine Manufacturers Association/Environmental Protection Agency (EMA/EPA) cooperative test program was initiated in May 1981 to analyze lab-to-lab variability in particulate emission measurements and to assess whether or not the large amount of transient emissions data generated at the Southwest Research Institute (SwRI) was repeatable at other laboratories. The program also was designed to determine ways to improve repeatability. Six engines which are newer models of engines tested under the SwRI baseline program, were chosen to be tested by seven labs: Cummins, Detroit Diesel Allison (DDA), International Harvester (IHC), Caterpillar (CAT), Mack, SwRI, and EPA. A total of 30 sets of tests were scheduled to be conducted on these six engines. Currently 77 percent of these tests have been completed. By June 1, 90 percent of the testing should be complete, and the program will be completed by July 1, 1982. This report will analyze all of the data currently available. First, interlab variability will be discussed, followed by a discussion of intra-lab variability. The correlation between 13-mode and transient particulate emissions will not be presented in this report due to the limited amount of data available, but will be reviewed in the final report.
Notes
Includes bibliographical references (p. 4). Technical report. Cover title. "March 1982." "EPA-AA-SDSB-82-08."