GB 50041-2020 第11.6.1条
| **** | The water treatment system should be provided with sampling points for routine testing of hardness, alkalinity, pH, dissolved oxygen and other parameters in feedwater, boiler water and domestic hot water. |
| **** | The water treatment system should be provided with sampling points for routine testing of hardness, alkalinity, pH, dissolved oxygen and other parameters in feedwater, boiler water and domestic hot water. |
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