BS 6925 – Specification for mastic asphalt for building and civil engineering (limestone aggregate)
Requirements for roofing, tanking and flooring grades of mastic asphalt for building, composed of ground limestone, coarse aggregate and pigment if required, incorporated with asphaltic cements. Appendices give guidance on selection of grades and thicknesses for flooring, remelting and hardness numbers at time of laying and mass per unit area.