Pattern G44 Description ASTM E45 Grain Sizing Key features Eyepiece Reticle to ASTM E45 Pattern comprises 7.1mm square with features on left and right side to compare size, and a 10mm length horizontal scale. Root 2 sides. Also likely to be suitable for DIN 50602. For some applications a 10mm square is required, these can be made to special order. Line Thickness 0.015mm +/-0.003mm Glass Type and Thickness Soda Lime 1.5mm thick Scale Length Tolerance +/-0.005mm Diameter Tolerance +0/-0.1mm Divisional Marker Lengths 0.4mm, 0.2mm Orientation Correct reading through glass
