Das Dokument applies to water-tube boilers with volumes in excess of 2 l for the generation of steam and/or hot water at an allowable pressure greater than 0,5 bar and with a temperatur in excess of 110 ?as well as other plant equipment. The ducument is to ensure that the hazards associated with the operation provided to contain the hazards that still prevail when the water tube boiler is put into service.#,,#