ABRASION

Abrasion-resistance

Glazed floor tiles = test standart ISO 10546-7: testing by means of a rotating wear medium (so called "PEI" test). Classification in groups (1-5) according to usage frequency (from low to very high), abrasive soiling and footwear. An example of group 1 are private sanitary facilities, and entrance lobbies in hotels for group 5.

Unglazed floor tiles = test standart ISO 10545-6: the abrsaion is determined in mm by means of wear medium and grinding wheel (material removal and volume loss). The test is considered passed if the abrasion is below a defined value (differs depending on the type of tile). Consequently, the standart does not differentiate between individual groups. Unglazed "through-dyed" ceramic tiles are once again unsurpassed and predestined for areas with an extremely high level of public traffic, e.g. traffic structures, supermarkets, shopping arcades, counter rooms and ticket offices etc.

(Source: "Lust auf Fliesen" [Enjoying Tiles], Deutscher Industrieverband Keramische Fliesen + Platten e.V. [German Association of Ceramic Tile Manufacturers])