Full Record Display for the EPA National Library Catalog
RECORD NUMBER: 65 OF 86Main Title | Investigation of Emissions from Trucks Above 6,000-Lb GVW Powered by Spark-Ignited Engines. | |||||||||||
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Author | Springer., Karl J. ; | |||||||||||
CORP Author | Southwest Research Inst., San Antonio, Tex.;National Air Pollution Control Administration, Ann Arbor, Mich. Procedures and Emissions Background Development Section. | |||||||||||
Year Published | 1969 | |||||||||||
Report Number | SwRI-AR-689; PH-86-67-72; SwRI-11-2056-02; | |||||||||||
Stock Number | PB-268 020 | |||||||||||
Additional Subjects | Carbon monoxide ; Hydrocarbons ; Nitrogen oxides ; Truck engines ; Spark ignition engines ; Exhaust emissions ; Continuous sampling ; Gasoline ; Experimental design ; Laboratory equipment ; Test engines ; Samplers ; Design criteria ; Calibrating ; Tables(Data) ; Monitoring ; Air pollution ; Air pollution sampling ; Baseline measurements ; Procedures ; Heavy duty vehicles | |||||||||||
Holdings |
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Collation | 259p | |||||||||||
Abstract | This report covers the efforts to make use of three cycles, known as Class II (6,001 to 10,000 GVW), Class III (10,000 to 19,500 GVW), and Class IV (19,501 and above), to survey the emissions from a wide variety of gasoline powered vehicles. The principal emissions of interest were CO, unburned HC, and NOx and were obtained on a mass, lb/mi basis. Emissions from selected vehicles were studied in detail to correlate the constant volume to the servoproportional and continuous methods. Emissions were then acquired from over 150 vehicles using a specially prepared truck size version of the PHS developed constant volume sampling system. All results are summarized by class and are rank-ordered from 'low to high' by CO, HC and NOx. By equally weighting the emissions, each vehicle's overall contribution was determined. Attempts were made to relate the amount of emissions to year, make, mileage, etc. The results for the same vehicle operated under two applicable cycles were compared. | |||||||||||
NTIS Title Notes | Final rept. 29 Jun 67-31 Mar 69. | |||||||||||
PUB Date Free Form | Mar 69 | |||||||||||
Category Codes | 21G; 21D; 68A; 97K; 81J | |||||||||||
NTIS Prices | PC A12/MF A01 | |||||||||||
Primary Description | 200/05 | |||||||||||
Document Type | NT | |||||||||||
Cataloging Source | NTIS/MT | |||||||||||
Control Number | 323718722 | |||||||||||
Origin | NTIS | |||||||||||
Type | CAT |