GB 50041-2020 第11.2.1条
| **** | Feedwater for steam boilers or hot water boilers shall use external chemical water treatment. For steam boilers with rated evaporation capacity ≤2t/h or hot water boilers with rated thermal power ≤1.4MW, in-boiler chemical dosing treatment may be adopted, but in hotel buildings, in-boiler dosing alone is generally not recommended. |