BS 1281:1974

Quality, shape, range of sizes, physical and chemical requirements. Preferred sizes for modular tiles 100 x 100 x 5 mm and 200 x 100 x 6.5 mm. Predominant range in non-modular tiles from 152 x 152 x 9.5 mm to 108 x 108 x 4 mm. Round edge, attached angle and angle bead tile fittings; cushion edges, spacer lugs. Sampling methods, tests for warpage, curvature, wedging, water absorption, crazing, resistance to chemicals and impact. Illustrations for application of tiles and tile fittings. See also PD 5827 .