BS 1286:1974

Specification for clay tiles for flooring

Quality, shape, range of ceramic floor tiles and clay floor quarries, sills and associated fittings. Preferred sizes for modular ceramic floor tiles 100 x 100 x 9.5 mm and 200 x 100 x 9.5 mm and for modular clay floor quarries 200 x 100 x 19 mm and 100 x 100 x 19 mm. Predominant range in non-modular clay floor quarries from 229 x 229 x 32 mm to 150 x 150 x 15 mm. Full range of fittings illustrated for each type. Sampling methods; tests for warpage, curvature and water absorption.