Graticules Optics, ASTM Carbide Grain Sizing Disc Pattern G43

Custom Coated Grids Information

These eye piece reticles are designed for use with the indicated ASTM tests for the determination of grain size on polished metallographically prepared specimens. 

ASTM Carbide Grain Sizing Disc 
Carbide grain sizing chart for use with ASTM tests. Glass sandwich. 

General comments:
Different microscopes from different manufacturers have eye pieces of different diameters, the more popular diameters being the ones listed. We can custom manufacture other diameters but the cost is roughly three times higher than the pricing for the standard sizes that are produced in quantity. 

Pattern: G43: