... SpecificationsWhiteness meter except solution or liquid samples, others all can test, such as: powder, board, paper, paste, sheet, clay, ... Building materials industry: White Cement (powder), Paint (pasty), Coating (pasty), Plastic (boards), Steel Plate (boards), Ceramics (powder), Gypsum (powder), Wallpaper ( ... Whiteness Meter (0-100%,LED display, touch panel, test paper, rice, flour, powder, paste)