Inspectioneering Journal

So You are Considering On-Stream Inspection Technologies... Have You Thought it Through?

Part 1: Automated Ultrasonics and Environmentally Assisted Damage

By Greg Alvarado, Chief Editor at Inspectioneering. This article appears in the July/August 1995 issue of Inspectioneering Journal.
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With miles of piping and tons of equipment to consider for on-stream inspection or monitoring you probably have:

  • Applied a methodology prioritizing equipment or systems for scrutiny.
  • Developed and utilize a scheme considering failure probability and consequences combined effects for your decisions.
  • Arrived at these decisions together with maintenance, inspection and operations.
  • Identified the most likely potential damage mechanisms and fracture critical areas potentially impacting reliability and/or mechanical integrity (MI), and combined with past experience and technical knowledge determined a representative percentage of area to inspect.


  • Budgets have been set.
  • You have identified NDE methods capable of detecting respective potential damage mechanisms with sensitivities and accuracies satisfying engineering critical assessment (ECA) criteria.
  • Inspection techniques have been evolving/developing and qualified.
  • NDE vendors and/or in-house personnel have been qualified to some extent, as well.

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