This document informs users about the source materials that have been considered in the development of the aggregate standards: — EN 12620, Aggregates for concrete; — EN 13043, Aggregates for bituminous mixtures and surface treatments for roads, airfields and other trafficked areas; — EN 13139, Aggregates for mortar; — EN 13242, Aggregates for unbound and hydraulically bound materials for use in civil engineering work and road construction; — EN 13383-1, Armourstone — Part 1: Product standard; — EN 13450, Aggregates for railway ballast; — EN 13055, Lightweight aggregates; Only source materials with a history of use in one or more member states are included in this document.