... SpecificationsWhiteness meter except solution or liquid samples, others all can test, such as: powder, board, paper, paste, sheet, clay, ... ), Gypsum (powder), Wallpaper (paper/sheet), Porcelain Enamel (powder), Calcium Carbonate (powder),etc.² Cosmetic industry: Toothpaste (paste), Face Cream (paste), etc ... Whiteness Meter (0-100%,LED display, touch panel, test paper, rice, flour, powder, paste)