This standard specifies the energy efficiency grades, minimum allowable values of energy efficiency, evaluating values of energy conservation and test methods of industrial boilers.
This standard is applicable to stationary steel steam boilers that the fuel is coal, oil and gas, the rated steam pressure is larger than 0.04MPa but less than 3.8MPa, the rated steam output is not less than 0.1 t/h and the medium is water and stationary steel hot water boilers that the rated water outlet pressure is larger than 0.1MPa.
