Fineness Gauge Grindometer Fineness of Grind ISO Standard One Channels 0-50 Used to determine the size and dispersion of pigments and impurities in paints, lacquers, inks, and other liquids and slurries. The instrument is suitable for room temperature 22 + 1 degrees, relative humidity of 70% to ensure accuracy From the research laboratory coatings and inks, to test the production process, in order to obtain reliable and reproducible recipe a critical measurement technique is material particles (including paint or other similar material) for fast and accurate size measurements. Single Fineness gauge, with a spatula, stainless steel by forging (4Cr13) is made with a certain slope of the groove. Scale in microns (um), Hagemeyer (Hegman), mil (MILS), the accuracy of fineness plate grooves  1m. Clean the scraper and plough blade before using. The paint that is in accordance with consistency index of product standard should be drip into the deepest place of the slanting channel with glass bar. The quantity dripped should be proper, put scraperthumbforefinger and middlefinger of both hand on the top of the gauge to make the edge of scraper contact the surface vertical. Draw it from the deep place of channel to shallow place. Immediately (not over 5 seconds) observe the tick mark of grain visible in the channel, this numerical value is the fineness.