How you complete pneumatic test of pipe line?

To complete a pneumatic test of a pipeline, first, ensure the system is clean and free of any debris. Next, fill the pipeline with air and pressurize it to the specified test pressure, typically 1.5 times the maximum operating pressure. Monitor the pressure for a specified duration, usually 30 minutes, checking for any leaks or pressure drops. Finally, after the test, safely depressurize the system and document the results for compliance and record-keeping.