ASTM C97-96 "Standard Test Methods For Absorption and Bulk Specific Gravity of Dimensional StoneASTM C99-87 "Standard Test Methods For Modulus of rupture of Dimensional StoneASTM C170-90 "Standard Test Methods For Compressive Strength of Dimensional Stone"ASTM C241-90 "Standard Test Methods For Abrasion Resistance of Stone Subjected to foot Traffic"ASTM C880-98 "Standard Test Methods For Flexural Strength of Dimensional Stone"