Calibration slide for the ASTM E112 Grain Size measurement method including a measurement report by both the planimetric and the Heyn method.

Slide pattern includes:

• ASTM Grain Size chart reproduction from 1.0 to 8.0
• Hexagon shapes to give the closest theoretical rating to the nominal value as possible
• Calibration rectangles for video camera input calibration
• Mirror for reflected light shading correction with microscopy imaging software and image analysis systems

Material and Thickness

Glass 1mm thick

Dimensions

75mm x 25mm