Industrial Grindometer / NIPRI Gauge is used to determine particle size and the fineness of grind of particles in printing inks. The Grindometer / NIPRI Gauge is available in sizes ranging from 0 to 25 microns. Arham Scientific Co. Offers Industrial Grindometer / NIPRI Gauge.Arham Scientific Co. Supplies Testing Equipments and Measuring Instruments for Paints, Powder Coatings and finishing related applications in Petroleum and Allied industries. The Industrial Grindometer / NIPRI Gauge comes with graduation of 2.5 micron or 1 NIPRI.