GB 50242-2002 第8.2.1条
| **** | **After radiator assembly, and before installation of factory-assembled radiators, a hydrostatic test shall be performed. Where the design does not specify, the test pressure shall be 1.5 times the working pressure but not less than 0.6 MPa.** (Mandatory inspection before radiator installation in hotel heating systems to prevent water leakage) |