1. British Standards Institution (1989) Specification for design and manufacture of water-tube steam generating plant (including superheaters, reheaters and steel tube economizers). BS 1113
2. British Standards Institution (1991) Specification for unfired fusion welded pressure vessels. BS 85500
3. British Standards Institution (1993) Specification for design and construction of ferrous piping installations for an in connection with land boilers. BS 806
4. British Standards Institution PD 5500. (2000) Specification for unfired fusion welded pressure vessels. PD 5500
5. Hayhurst DR, Goodall IW (2003) Industrial drivers for the design and assessment of high temperature weldments: and, the use and capabilities of CDM analysis methods. In: Proceedings of the 2nd international conference on integrity of high temperature welds, Nov 2003, IOM Communications, London, ISBN 1-96125-160-2, pp. 329–346