Record Display for the EPA National Library Catalog


Main Title In-house test program report No. 1 : vehicle preconditioning: AMA+LA-4 vs LA-4.
Author Rarick, Thomas ; Wilson., Gary M. ;
CORP Author Environmental Protection Agency, Ann Arbor, Mich. Standards Development and Support Branch.
Publisher U.S. Environmental Protection Agency, Office of Air and Waste Management, Office of Mobile Source Air Pollution Control, Emission Control Technology Division, Standards Development and Support Branch,
Year Published 1975
Report Number Evap. 75-1
Stock Number PB-270 366
OCLC Number 702372912
Subjects Automobile industry and trade--Environmental aspects ; Automobile industry and trade--United States ; Automobiles--Motors--Exhaust gas--Analysis ; Air--Pollution--United States ; Fuel economy
Additional Subjects Exhaust emissions ; Motor vehicles ; Tests ; Technology ; Dynamic tests ; Simulation ; Validity ; Exhaust gases ; Evaporation ; Air pollution ; Road tests ; Dynamometers ; Automobile engines ; Fuel tanks ; Test vehicles ; Preconditioning ; Evaporative emissions
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
ELBD ARCHIVE EPA EVAP-75-1 2 copies AWBERC Library/Cincinnati,OH 12/12/2023
ELCD  EPA Evap. 75-1 NVFEL Library/Ann Arbor, MI 03/21/2011 DISPERSAL
NTIS  PB-270 366 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation [i], 17, [5] pages : illustrations, charts ; 28 cm
The purpose of vehicle preconditioning is to provide a relatively consistent starting base for all vehicles involved in emission testing. This starting base is intended to prepare the vehicle so that it tends to simulate a real-life condition that an average vehicle would normally experience in its day-to-day operation. Five vehicles, representing different engine-fuel tank configurations, were used in evaluating the effect of two vehicle preconditioning driving sequences on diurnal losses (as measured by the SHED technique) and exhaust emissions. One prep cycle was that required by the 1975 FTP, consisting of driving the vehicle over a pre-established road route followed by a dynamometer drive. The other prep cycle consisted of a dynamometer cycle only. Three tests per sequence per vehicle were conducted. The results of this testing support an earlier EPA study with regard to exhaust emissions.
Cover title. "June 1975." At head of title: Technical Support Report for Regulatory Action. Includes bibliographical references (page 15).