2011BS EN 12952-4:2011 Water-tube boilers and auxiliary installations. In-service boiler life expectancy calculations
2002BS EN 12952-10:2002 Water-tube boilers and auxiliary installations - Requirements for safeguards against excessive pressure
1999BS 1113:1999 Specification for design and manufacture of water-tube steam generating plant (including superheaters, reheaters and steel tube economizers)