PARTICULATE MEASUREMENT - VEHICLE PRECONDITIONING
A study has been made of the effects of different vehicle preconditioning on particulate emissions from three light-duty diesel automobiles. The results indicate that prior extreme operation of a vehicle can affect the level of particulate emitted during measurements by the Federal Test Procedure. However, one LA-4 driving cycle appears to provide adequate preconditioning for most cases. The duration and magnitude of the preconditioning effect varies among vehicles.
Environmental Protection AgencyStandards Development & Support Branch, 2565 Plymouth Road
Ann Arbor, MI United States 48105
- Danielson, E
- Publication Date: 1979-2
- Pagination: 12 p.
- TRT Terms: Air pollution; Automobiles; Concentration (Chemistry); Diesel engines; Exhaust gases; Graphs; Measurement; Particles; Particulates; Pollutants; Sampling
- Old TRIS Terms: Graphs charts
- Subject Areas: Highways; Vehicles and Equipment;
- Accession Number: 00304185
- Record Type: Publication
- Source Agency: National Technical Information Service
- Report/Paper Numbers: SDSB-79/05 Tech Rpt.
- Files: TRIS
- Created Date: Dec 19 1980 12:00AM