BS 4147:1980(1999) Specification for Bitumen - based hot - applied coating materials for protecting iron and steel, including suitable primers where required
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