Buyers must ensure products meet international quality benchmarks. Key standards include ISO 13006 or EN 14411, which define the requirements for ceramic tiles. Essential technical specs to request include Breaking Strength (minimum 600N for wall tiles), Chemical Resistance (Class GB or higher) to ensure cleaning agents won't damage the glaze, and Thermal Shock Resistance if the tiles are used near heat sources or outdoors. For the US market, ensure compliance with ANSI A137.1, and for the EU, look for the CE Marking.