Dispersion & Density Elcometer 2070 NPIRI Fineness of Grind Gauge This precision gauge is used to determine particle size and the fineness of grind of particles in printing inks according to the National Printing Inks Research Institute (NPIRI) scale. As ink particles are so fine the two grooves of the gauge have a gentle gradient allowing a scale of 2.5µm for better resolution. The groove width is 25mm (0.98”) and the groove length is 165mm (6.5”). The NPIRI scale is displayed alongside the microns scale. The NPIRI gauge and its scraper are made of hardened stainless steel. STANDARDS: ASTM D 1316 Technical Specification Part Number Certificate (mils) Packed Dimensions Packed Weight Packing List Elcometer 2070 NPIRI Fineness of Grind Gauge, scraper, plastic case and operating instructions Replacement Scraper for Elcometer 2070 ○ Optional Calibration Certificate available. © 2019 Elcometer Limited. Elcometer is a registered trademark of Elcometer Limited. All other trademarks acknowledged. Due to our policy of continuous improvement, Elcometer Limited reserves the right to change specifications without notice.