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Astm C1353 Granite Hardness Calulator

Abrasive Hardness (Ha) A measure of the wearing performance of stone for floors, stair treads, and other areas subjected to abrasion by foot traffic. Refer to ASTM C241 and C1353. Absorption The amount of water absorbed by a stone, expressed as a percentage by weight. Refer to ASTM C97. Abutment A solid stone “springer” at the lowest

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