GB 50243-2016 第9.3.1条
| **** | **Hydraulic pressure test**: After the air-conditioning water system is installed, a hydraulic pressure test must be carried out. The test pressure shall be 1.5 times the working pressure and not less than 0.6 MPa. Hold at the test pressure for 10 minutes, with a pressure drop not greater than 0.02 MPa, then reduce to the working pressure for inspection; no leakage or seepage is acceptable. |