JINGKELIAN ISO Grindometer QXP 0-50S meets the GB/T6753.1 standard, with a fineness range of 0 to 50 microns. It is a double-channel Fineness Gauge. The scale value of QXP 0-50S is 5 microns. It is used to test the fineness of pigments, fillers and impurities in Paints and paint pulps.