meter,it can measure the whiteness of flour, starch and rice flour to attain the goal of controlling the machining precision ... Factory (paper/sheet), Publishing Company (paper/sheet), etc² Textile industry: Fabric (sheet), Gauze (sheet), Weaving factory (sheet), cotton (clumps), etc.Technical ... Whiteness Meter (0-100%,LED display, touch panel, test paper, rice, flour, powder, paste)