Applied loads of 25, 50, 100, 200, 300, 500, and 1,000g are available for the Shimadzu tester.
The loading dwell period is selectable from 5, 10, 15, 30, or 45 seconds.
Note: A Knoop (rhombic-based pyramidal geometry) diamond indenter could be employed, if available, for Knoop microhardness testing. The Knoop Hardness Number HK is determined differently from HV, due to the different Knoop indenter geometry and the Knoop Hardness Number HK basic definition as:
Knoop Hardness Number HK = Applied Load divided by Projected Indentation Area (not a square).
See ASTM Standard E384 for more information.