Multi-part Document
BS 6431 - Ceramic floor and wall tiles. Extruded ceramic tiles with a water absorption of 3% &lt; <i>E</i> ≤ 6%. Group AIIa

This is a multi-part document divided into the following parts:

• Part 1 Ceramic floor and wall tiles. Specification for classification and marking, including definitions and characteristics
• Part 2 Ceramic floor and wall tiles. Specification for extruded ceramic tiles with a low water absorption (<i>E</i> ≤ 3%). Group A1
• Part 3.1 Ceramic floor and wall tiles. Extruded ceramic tiles with a water absorption of 3% &lt; <i>E</i> ≤ 6%. Group AIIa. Specification for general products
• Part 3.2 Ceramic floor and wall tiles. Extruded ceramic tiles with a water absorption of 3% &lt; <i>E</i> ≤ 6%. Group AIIa. Specification for specific products (terre cuite, cotto, baldosin catalan)
• Part 4.1 Ceramic floor and wall tiles. Extruded ceramic tiles with a water absorption of 6% &lt; <i>E</i> ≤ 10%. Group AIIb. Specification for general products
• Part 4.2 Ceramic floor and wall tiles. Extruded ceramic tiles with a water absorption of 6% &lt; <i>E</i> ≤ 10%. Group AIIb. Specification for specific products (terre cuite, cotto, baldosin catalan)
• Part 5 Ceramic floor and wall tiles. Specification for extruded ceramic tiles with a water absorption of <i>E</i> > 10%. Group AIII
• Part 6 Ceramic floor and wall tiles. Specification for dust-pressed ceramic tiles with a low water absorption (<i>E</i> ≤ 3%). Group B1
• Part 7 Ceramic floor and wall tiles. Specification for dust-pressed ceramic tiles with a water absorption of 3% &lt; <i>E</i> ≤ 6%. Group BIIa
• Part 8 Ceramic floor and wall tiles. Specification for dust-pressed ceramic tiles with a water absorption of 6% &lt; <i>E</i> ≤ 10%. Group BIIb
• Part 9 Ceramic floor and wall tiles. Specification for dust-pressed ceramic tiles with a water absorption of <i>E</i> > 10%. Group BIII
• Part 10 Ceramic floor and wall tiles. Method for determination of dimensions and surface quality
• Part 11 Ceramic floor and wall tiles. Method for determination of water absorption
• Part 12 Ceramic floor and wall tiles. Method for determination of modulus of rupture
• Part 13 Ceramic floor and wall tiles. Method for determination of scratch hardness of surface according to Mohs
• Part 14 Ceramic floor and wall tiles. Method for determination of resistance to deep abrasion. Unglazed tiles
• Part 15 Ceramic floor and wall tiles. Method for determination of linear thermal expansion
• Part 16 Ceramic floor and wall tiles. Method for determination of resistance to thermal shock
• Part 17 Ceramic floor and wall tiles. Method for determination of crazing reistance. Glazed tiles
• Part 18 Ceramic floor and wall tiles. Method for determination of chemical resistance. Unglazed tiles
• Part 19 Ceramic floor and wall tiles. Method for determination of chemical resistance. Glazed tiles
• Part 20 Ceramic floor and wall tiles. Method for determination of resistance to surface abrasion. Glazed tiles
• Part 21 Ceramic floor and wall tiles. Method for determination of moisture expansion using boiling water. Unglazed tiles
• Part 22 Ceramic floor and wall tiles. Method for determination of frost resistance
• Part 23 Ceramic floor and wall tiles. Specification for sampling and basis for acceptance