Six laboratories capable of testing a heavy-duty vehicle were asked to perform a series of transient and steady state tests for comparative purposes. The vehicle, a Ford L-9000 single axle tractor, was selected as typical of the heavy-duty fleet on American highways while presenting minimum difficulty for the participating laboratories. Emissions data from each lab were compiled and presented in graphical format with statistical analyses performed to gauge the repeatability and reproducibility of each lab's data. Results from the crosscheck were mixed with some measured emissions staying consistent levels throughout and some varying significantly.
Interlaboratory Crosscheck of Heavy-Duty Vehicle Chassis Dynamometers
2002
170 pages
Report
No indication
English
Road Transportation , Air Pollution & Control , Heavy duty vehicles , Chassis dynamometers , Exhaust emission tests , Laboratory tests , Dynamometers , Research , Final report , Tractors , Emissions , Statistical analysis , Diesel fuels , Pavement loadings , Truck tests , Quality control , Sampling , Measuring instruments , Transient response , Steady state , Crosscheck comparison , Interlaboratory participation , Road-load modeling
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