March 26, 2010, Newsletter Issue #23: Brinell Numbers

Tip of the Week


One of the methods by which hardwood floors are measured for hardness was created by Swedish designer, Johann A. Brinell in 1910. Originally developed to test the hardness of metal, the procedure involves placing a hardened steel ball on a flat surface of the metal to be tested. The diameter of the dent made by the ball is measured, and the result is what is known as the "Brinell" number.

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