The Division of Motor Vehicle Pollution control, NAPCA, conducted tests to collect the "total particulate" emitted from a vehicle being operated according to the 1972 standard test cycle, LA-4S3, (7.5 miles, 22 minutes). Eighteen cars, six Fords, six Chevrolets, and six Plymouths were used in the tests. Vehicles were of comparable weight, size and displacement and were representative of a standard 1970 production vehicle. Three cars of each make were run on leaded fuel during mileage accumulation and dynamometer tests; the other three used non-leaded fuel. Tests were made at odometer readings of approximately 50, 2,000, 4,000, and 6,000 miles. All vehicles were fitted with adapters so that the exhaust flow could be collected ahead of the muffler in order to study the effects of muffler trapping. Mileage accumulation was accomplished on a speedway using a prescribed driving sequence.
Interim Report on Particulate Emissions from Light Duty Vehicles
1971
20 pages
Report
No indication
English
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