1. In addition to painting and heat insulation, the pipeline construction projects within the scope of the test have been completed in accordance with the overall planning engineering drawings, and the installation quality conforms to relevant standards.
2. Welding and other positions to be inspected are not painted and insulated.
3. The compensator on the pipeline has been set with temporary restraint equipment.

4. The working pressure used for the test mainly shows that it has been calibrated, and within the cycle time, its precision shall not be less than 1.5, the full scale value of the gauge shall be 1.5-2 times of the measured larger working pressure, and the barometer shall not be less than two.
5. The liquid or vapor that meets the requirements of the working pressure test has been prepared.
6. According to the test regulations, the pipeline has been structurally reinforced.
7. To be separated from the unrelated management system by blind valve or other methods of listening to opinions.
8. The valves and surface components on the baby path to be tested have been removed or isolated in many ways.
9. The test plan has been approved, and the safety disclosure of professional skills has been carried out.