Microscope Eyepiece Reticules (Graticules) 

G23 Thompson for Dust Analysis

Eyepiece Reticle with Squares identified A, B and C and are sized 4mm, 7mm and 10mm. Horizontal Scale is 10mm subdivided into 100 divisions of 0.1mm (100µm).

Technical Specification

For counting particles in any of three areas of known size. The graticle is calibrated in the same manner as a normal eyepiece scale. The result is then used to calculate the area of any square.

Glass Type and Thickness
Soda Lime 1.5mm thick

Diameter Tolerance
+0/-0.1mm

Orientation
Correct reading through glass