Deep abrasion resistance

Method only applicable to unglazed ceramic tiles. The testing method and the expression of results are the same as those indicated in the previous European Standards (EN 102). Only one modification has been made regarding the material to be used for the calibration of the instrument. The calibration procedure remains unchanged.
All fine full-body coloured porcelain stoneware products conform to the values required by the ISO 10545/6 standards.