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RECORD NUMBER: 18 OF 5106

Main Title 1972-73 heavy-duty engine : baseline program and NO[x] emission standard development : appendix A /
Author Cox, {Timothy; Diatchun, Zachary; Nugent, Thomas; Passavant, Glenn; Ragsdale, Larry;
CORP Author Environmental Protection Agency, Ann Arbor, MI. Standards Development and Support Branch.
Publisher Standards Development and Support Branch, Emission Control Technology Division, Office of Mobile Source Air Pollution Control, Office of Air, Noise and Radiation, U.S. Environmental Protection Agency,
Place Published Washington, D.C.
Year Published 1981
Report Number EPA-AA-SDSB-81-01
Stock Number PB81-244030
OCLC Number 11956923
Subjects Air pollution; Nitrogen oxides; Standards; Exhaust emissions; Gasoline engines; Regulations; Heavy duty vehicles; Clean Air Act Amendments of 1977
Subject Added Ent Engines--Standards--United States.; Combustion gases.
Internet Access
Description Access URL
http://nepis.epa.gov/Exe/ZyPURL.cgi?Dockey=9100X0DP.txt
Holdings
Library   Call Number Additional Info Location Date Modified
ELCD EPA AA-SDSB-81-01 NVFEL Library/Ann Arbor, MI 05/04/2011
NTIS PB81-244030 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 p. cm.
Abstract The Environmental Protection Agency was mandated by the 1977 Clean Air Act Amendments to determine the statutory NOx emission standard for 1985 heavy-duty engines. The standard was to be based on a 75 percent reduction from the average measured emissions for uncontrolled (1972-73 model year) gasoline-fueled heavy-duty engines. To establish the amount of NOx emissions from the uncontrolled heavy-duty gasoline-fueled engines, ECTD began a baseline testing program. This program consisted of four sections: (1) engine procurement, (2) restorative maintenance, (3) testing the engine emission levels using the transient test procedure, and (4) determination of the average measured emissions. Twenty-six engines were tested with 73 valid tests to obtain the average NOx emissions. Based on the results of these emission tests, the average NOx emission level is 6.8 g/BHP-hr. The CAAA of 1977 calls for a 75 percent reduction in NOx emissions as the statutory emission standard; complying with this requirement the 75 percent reduction prescribed yields a heavy-duty engine NOx emission standard of 1.7 g/BHP-hr.
Notes At head of title: Technical report. "March 1981." "EPA-AA-SDSB-81-01."
Author Added Ent
Cox, Timothy.
Corporate Au Added Ent United States. Environmental Protection Agency. Emission Control Technology Division. Standards Development and Support Branch.
Alternate Title Heavy-duty engine: baseline program and NOx emission standard development: appendix A\ 1972-73 heavy-duty engine : baseline program and NO[x] emission standard development\ Heavy-duty engine: baseline program and NOx emission standard development
NTIS Title Notes Technical rept..
PUB Date Free Form Mar 81
Category Codes 13B; 68A
NTIS Prices PC A04/MF A01
Primary Description 200/05
BIB Level m
Control Number 323803283
OCLC Time Stamp 20110428151835
Cataloging Source OCLC/T
Language eng
Origin OCLC
Type MERGE
OCLC Rec Leader 01260cam 2200289Ka 45020


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