BS 2790-1:1969

This British Standard specifies requirements for directly-fired boilers and for waste-heat boilers of cylindrical, vertical and locomotive type designs, constructed by fusion welding, where the design metal temperature does not exceed 350 °C. The boilers covered by this standard are intended for land use for providing steam or high pressure hot water. This standard does not apply to water-tube boilers (see BS 1113*) nor to boilers for railway locomotives.

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