Unpolished Product Specifications

DESCRIPTION	TEST METHOD	REQUIREMENTS	CRYSTAL GRANIT STANDARD
Water Absorption	ISO 10545 - 3	<= 0.5 %	<= 0.1 %
Dimension : Length & width Thickness Straightness of sides Rectangularity Surface flatness	ISO 10545 - 2	± 0.6% ± 5% ± 0.5% ± 0.6% ± 0.5%	± 0.08% ± 2.5% ± 0.1% ± 0.1% ± 0.1%
Bending Strength	ISO 10545 - 4	>= 25 kg/cm2	>= 400 kg/cm2
Deep Abrasion Resistance	ISO 10545 - 6	<= 175 mm3	<= 175 mm3
Surface Abrasion Resistance	ISO 10545 - 7	Report abrasion class and cycles passed	Min 3 PEI **
Thermal Expansion	ISO 10545 - 8	<= 9.10^-6 .K^-1	<= 7.10^-6 .K^-1
Thermal Shock Resistance	ISO 10545 - 8	No visible defects	No visible defects
Frost Resistance	ISO 10545 - 12	Frost proof	Frost proof
Chemical Resistance	ISO 10545 - 14	No visible defects	No visible defects