Fitness For Service (API-579)
Fitness for service assessment techniques are applied to evaluate the structural and equipment mechanical Integrity. The results include an estimate of remaining life.
In addition to regular inspection, equipment needs to be examined for fitness for service when adverse events happen to it. There are many types of events or damage mechanisms that can require a new inspection. This happens when equipment has been operated outside of normal conditions than what it is designed for. Inspection is also required when it has been overloaded, or been subject to fire damage or impact damage.
Focus NDT inspections and reporting for fitness for service will cost effectively tell you your options. These options include future service requirements and changed inspection intervals.