Requirements for hot applied bitumen based materials, both unfilled and reinforced with inert powdered or fibrous fillers, which will provide protection against corrosion.
BS 4147:1980 history
2006BS EN 10300:2005 Steel tubes and fittings for onshore and offshore pipelines - Bituminous hot applied materials for external coating
1980BS 4147:1980 Specification for bitumen-based hot-applied coating materials for protecting iron and steel, including suitable primers where required