Test Description Standard Test Method ISO Standard Sheltech Standard
Breaking Strength BS EN ISO 10545-4 ≥ 1300 N 5098.08 N
Modulus of Rupture BS EN ISO 10545-4 ≥ 35 N/mm2 48 N/mm2
Resistance of Surface Abrasion BS EN ISO 10545-7 PEI Class 2-5 PEI 4 *
Resistance of Thermal Shock BS EN ISO 10545-9 No visible defect No visible defect
Thickness BS EN ISO 10545-2 ± 5.0% ± 5.0%
Water Absorption BS EN ISO 10545-3 <= 0.5% 0.05%