Prior to executing an inspection of a separator vessel for potential low-temperature hydrogen damage (i.e., wet H₂S damage), an owner-operator desires to establish go/no-go criterion to expedite run, repair, replace decisions during an outage.

Implement a proactive Fitness-For-Service assessment to tabulate go/no-go criterion for cracking and local thin areas (to be utilized as crack grind out tolerances and blister tolerances) at critical locations of the vessel.