本英国标准规定了设计金属温度不超过350°C的直接燃烧锅炉和圆柱形、立式和机车式设计的废热锅炉的要求。本标准涵盖的锅炉用于提供蒸汽或高压热水的土地用途。本标准不适用于水管锅炉（见BS 1113*）或铁路机车锅炉。购买本文件时可获得的所有当前修订均包含在购买本文件中。

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.All current amendments available at time of purchase are included with the purchase of this document.