Arona Porcelain Tile Technical Specifications And Quality Standards.pdf

- Type: Porcelain stoneware, EN 14411 G gruppo B1a GL.
- Size Options:
- Bianco (White): 12"x24", 24"x24", 3.2"x24" bullnose, and sheet (12"x12").
- Beige: 12"x24", 24"x24", 3.2"x24" bullnose, and sheet (12"x12").
- Edge Finish: Rectified for most sizes; bullnose for 3.2"x24".
- Surface Quality: At least 95% of tiles must be free from visible flaws.
- Dimensions & Tolerance:
- Length and Width: ±0.9 mm (7 cm ≤ N < 15 cm), ±2 mm (N ≥ 15 cm) from production dimensions.
- Thickness: ±0.5 mm, ±5% from production dimensions.
- Straightness: ±0.75 mm, ±0.5% for straight edges; ±1.5 mm, ±0.1% for right angles.
- Flatness (curving): ±0.75 mm, ±0.5% overall; ±2.0 mm, ±0.35% in the middle, corners, and warping.
- Performance & Resistance:
- Water Absorption: E ≤ 0.5% (for thickness ≥ 7.5 mm).
- Breaking Strength: Minimum 1300 N (for minimum 7.5 mm thickness), >1700 N for Bianco.
- Flexural Strength: 35 min, >40 N/mm² for Bianco; test not specified for Beige.
- Abrasion Resistance (glazed tiles): Manufacturer's declaration.
- Thermal Shock Resistance: ISO 10545-9 compliant.
- Glaze Craze Resistance: Required, ISO 10545-11 compliant.
- Stain Resistance: Class 4, ISO 10545-14.
- Acid & Alkali Resistance: See manufacturer's declaration (GLB/GLA).
- Domestic Chemical Products Resistance: GB min (GLB), GA (GLA) per ISO 10545-13.
- Frost Resistance: Required, ISO 10545-12 compliant.
- Friction Coefficient (slipperiness): R9 (natural), DIN 51130:2010; wet >0.6 (natural), ASTM C 1028; wet >0.42 (polished).
- Grout Joint: Recommended for rectified edge tiles; avoid 1/2 broken joint.