1.

WHICH_OF_THE_BELOW_GIVEN_FORMULAS_IS_USED_TO_CALCULATE_HARDNESS_COEFFICIENT??$

A. (Final hardness / initial hardness) √ó 100%
B. 20 – (loss in weight / 2)
C. 20 – (loss in weight / 3)
D. ((20 – loss in weight) / 3) × 100%
Answer» D. ((20 ‚Äö√Ñ√∂‚àö√ë‚àö¬® loss in weight) / 3) ‚Äö√†√∂‚àö‚â• 100%


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