G48 Kotter Pattern

This reticle is normally used with a 20x objective and is sized accordingly. If other objective magnifications are used then we have to apply a calibration factor to ensure the pattern is the correct size. Please ask for a quotation for a custom made reticle. Reference: I.S.O. 7404-4: 1988 (E). Methods for Analysis of Bitumous Coal and Anthracite. Part 4 and Methods of Determining Microlithotype Composition.

 

Line Thickness
0.010mm +/-0.002

Glass Type and Thickness
Soda Lime 1.5mm thick

Overall Tolerance
+/-0.0025mm

Diameter Tolerance
+0/-0.1mm

Square Sizes
0.25mm

Orientation
Correct reading through glass