NBN EN 12808-1:2009

This European Standard specifies the test method to be used to determine the chemical resistance of ceramic tile adhesives and grouts under anticipated service conditions.
This European Standard applies to reaction resin ceramic tile grouts and adhesives for internal and external ceramic tile installations on walls and floors.
This European Standard does not contain performance requirements or recommendations for the design and installation of ceramic tiles and grouts.
NOTE Ceramic tile adhesives and grouts can be used also for other kinds of tiles (natural and agglomerated stones, etc.), where these do not adversely affect the materials.
WARNING - This European Standard can involve hazardous materials and operations. Persons using this standard should be familiar with normal laboratory practice. This European Standard does not purport to address all the safety problems, if any, associated with its use. It is the responsibility of the user to establish appropriate safety and health practices and to ensure compliance with any European and national regulatory conditions.