The assemblies were attached to a positive pressure gas test stand, submerged in water,
pressurized to 1.5 times the working pressure with helium gas for at least 10 minutes, and
monitored for leakage.
2. The pressure was dropped, and fittings were then re-pressurized to working pressure with
nitrogen gas for at least 10 minutes, and monitored for leakage.
3. The fittings were disassembled and reassembled according to the proper Swagelok
reassembly specifications.
4. The fittings were leak tested using nitrogen gas at the working pressure for at least 10 minutes
at every fifth reassembly.
5. A total of 25 reassemblies were conducted on each test end.