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註釋Report of brake pad wear debris generation and characterization conducted by General Motors. While a brake dynamometer was used, the methods in this study differ from the standard brake pad wear debris generation protocol developed by the Brake Manufacturers Council. Performed a mass balance of the wear debris generation process looking at mass loss and mass collected in the airborne and deposited material fractions. Conducted limited characterization of the wear debris, including aerodynamic diameter particle size distributions with an in-line micro orifice uniform deposit impactor (MOUDI), elemental analysis (by proton-induced X-ray emission [PIXE]) of the airborne and deposited material fractions.