Requirements for the design and construction including materials, workmanship, inspection, testing and marking of boilers for use with solid, gaseous and liquid fuels.Cross References:BS 21BS 499:Part 1BS 749BS 759:Part 1BS 779BS 799:Part 3BS 799:Part 4 BS 806BS 845:Part 1BS 1113BS 1387 BS 1501BS 1502BS 1580:Parts 1 & 2BS 1780BS 1894BS 1971BS 2486BS 2779 BS 2790BS 2869BS 3059:Part 1BS 3601 BS 3602:Part 1BS 3643:Part 1BS 3643:Part 2 BS 4504:Part 1BS 4870:Part 1BS 4870:Part 4 BS 4871:Part 1BS 4882BS 4947BS 5410:Part 2BS 5885:Part 1BS 5978:Part 1BS 5978:Part 2BS 5978:Part 3BS 6759:Part 1BS 7190Factories Act, 1961IEE Regulations for Electrical InstallationsPartially replaced by BS EN 303-1:1999 and BS EN 303-4:1999.