||What is warpage tolerance for calibrated porcelain tile?
FOR CALIBRATED PORCELAIN TILE (FIELD TILE), from ANSI 137.1 - 2008
Warpage edge +/- 0.75% or 2.3mm, whichever is less
Warpage diagonal +/-0.50% or 2.0mm, whichever is less
Measurements to be done using procedure ASTM C485
** Florim's internal specification has a lower tolerance. This means that we exceed the requirements listed above easily.