This standard specifies the operation effect of industrial boiler water treatment facilities and the methods for monitoring and evaluating them. This standard applies to the water treatment facilities equipped with fixed steam boilers and steam-water dual-purpose boilers with a rated outlet steam pressure of less than or equal to 2.5Mpa and water as the medium, and also applies to fixed pressurized hot water boilers with water as the medium, Water treatment facilities equipped with atmospheric hot water boilers.