1.

How is the Vicker s hardness number defined as?

A. 1.8544PD<sup>2</sup>
B. 1.8544P 1/D<sup>2</sup>
C. 8.544P 1/D<sup>2</sup>
D. 8.544PD<sup>2</sup>
Answer» C. 8.544P 1/D<sup>2</sup>


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