Other technical features of porcelain stoneware
Dimensional characteristics - UNI EN ISO 10545-2
The dimensional characteristics of the ceramic tiles are a set of parameters that identify the geometry.
UNI EN ISO 10545-2 plans to run:
Measures relating to the sides:
- dimensions of the sides and thickness;
- straightness of edges: checked by verifying that the sides do not have bends towards outwards or inwards, in the plane of the tile;
- squareness: checked by verifying that the sides of the tile are perpendicular to each other.
WATER ABSORPTION - UNI EN ISO 10545-3
Absorption is the ceramic product capacity for water penetration. Obviously, this is greatly important for the determination of the product mechanical features. Porcelain stoneware belongs to BIa group that identifies a water absorption value: EB < 0.5%
BENDING RESISTANCE - UNI EN ISO 10545-4
Bending resistance is the maximum load applied at three points that the tile can bear without breaking. The level is expressed in N/mm2. Porcelain stoneware belongs to BIa group that identifies a bending resistance value: Rb > 35 N/mm2 S> 1300 N
DEEP ABRASION RESISTANCE - UNI EN ISO 10545-6
For products: Full-body and full-body coloured porcelain stoneware classified UGL.This test is done on unglazed surfaces (UGL) and aims to determine the quantity of material removed by the action of an abrasive disc (150 revs). The less material removed by the disc implies a stronger ceramic product.