Frost Resistance of Ceramic Tiles - Test Method - BS EN ISO 10545-12:1997
Ceramic tiles. Determination of frost resistance.
Specifies a method for determining the frost resistance of all ceramic tiles intended for use in freezing conditions in the presence of water.
After impregnation with water, submission of the tiles to a cycle between +5°C and -5°C, all sides of the tiles being exposed to freezing during a minimum of 100 cycles.