480 Charles Bancroft Hwy.
Litchfield, NH 03052
Phone: (603) 424-2401
(800) 252-2401
Fax: (603) 424-0970
Grain Counters
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with a 10X objective The following chart was used to make this image METHODS FOR DETERMINING THE AVERAGE GRAIN SIZE ASTM METHODS E 112 PCN 12-501120-10 Plate 1B Untwinned Grains ( Flat Etch) 100X |