scope:

This European Standard applies to water-tube boilers withvolumes in excess of two litres for the generation of steam and/orhot water at a maximum allowable pressure PS greater than 0,5 barand with a temperature in excess of 110 ?C as well as auxiliaryinstallations (other plant equipment). The purpose of this EuropeanStandard is to ensure that the necessary essential safetyrequirements according to Annex I of the Pressure EquipmentDirective are fulfilled in order to guarantee the safety of watertube boilers. This aim will be achieved by: ? the properapplication of the design, manufacturing, testing and inspectionmethods and techniques, ? the provision of protective measuresagainst hazards, which cannot be eliminated, and ? the provision ofinformation on residual hazards and other measures to reduce risk,which are incorporated in the various parts of this EuropeanStandard. The requirements of this European Standard take accountof pressure-related hazards, which apply to water tube boilers,including failure of pressure-retaining components due tooverheating. This standard recognizes that it is not possible tocover all the combinations of situations that might arise.