... , coating, plastic, printing ink etc.. high whiteness, gloss high quality and good price titanium dioxide for road marking paint Characters:High glossEasy ... 1. Test for Whiteness of oil systerm ( L* ) and Hue ( b * ): Grind the Titanium dioxide with grinding mill, to make a film ... standard ceramic tile by Differential Colorimeter .Then test the surface of the film and indicate with CIE L*,a*,b*2. Test ...