API 571 – Damage Mechanisms Affecting Fixed Refinery Equipment Course

 Course Reference  WTS- API571/10/026


Course Duration:  Five days (40 hours as per API regulations)

Note:  Persons Holding API 653, 570 or 510 ICP Certification are eligible to sit the supplementary qualification through API

Download Course Registration (pdf)



The basis for all inspection and maintenance programs is the ability to understand the mechanisms by which components deteriorate. Only if we can identify the probable damage mechanism will we be able to use appropriate NDT tools to establish the presence of it, identify the rate of progression and time to failure.

API 571 is a result of a need for a document that describes damage mechanisms affecting equipment in the refining and petrochemical industries. A key first step in safely and reliably managing equipment is identifying and understanding the relevant damage mechanisms. Proper identification of damage mechanisms is important when implementing the API Inspection Codes (API 510, API 570, API 653) and in conducting risk based inspection per API 580 and API 581. When performing a fitness-for service assessment using API 579, the damage mechanisms need to be understood and need to be considered when evaluating the remaining life.

The course will study:

  • Practical information on damage mechanisms that can affect process equipment,
  • Assistance regarding the type and extent of damage that can be expected, and
  • How this knowledge can be applied to the selection of effective inspection methods to detect size and characterize damage.

The overall purpose of this document is to present information on equipment damage mechanisms in a set format to assist the participant in applying the information in the inspection and assessment of equipment from a safety and reliability standpoint.

Worldwide Tank Services conducts training classes that help attendees understand API’s new Recommended Practice (RP) 571, Damage Mechanisms Affecting Fixed Equipment in the Refining Industry.

Over the past decade, API has developed two major technologies to improve fixed equipment reliability in refining.

They cover Fitness-For-Service (RP 579) and Risk-Based Inspection (RP 580/581). There are several common factors in both of these integral technologies, including:

  • identification of the operative damage mechanisms
  • assessment of future damage progression rates
  • selection of appropriate Non-Destructive Evaluation (NDE) techniques for detecting/ characterizing equipment damage

API RP 571 was created to help link these technologies and to provide better access to information that is located in one concise source covering damage mechanisms. This new recommended practice also aids in understanding damage being inspected for in API 510/570 and API Std. 653.

Understanding damage mechanisms and the effect of process conditions is very important. Following are some of the main topics discussed in this course:

  • Setting up effective inspection plans requires an in-depth understanding of what kind of damage to look for and how to identify it.
  • Methodologies for Risk-Based Inspection (RBI) and Fitness-For-Service (FFS) depend on the accurate prediction and determination of active mechanisms.
  • An effective Management of Change (MOC) process needs to consider the effect of proposed changes on future degradation. Many problems can be prevented or eliminated if the precursors to damage are observed and monitored so that any potential damage is mitigated.
  • Appropriate inspection and/or testing can achieve a proper balance between cost and effectiveness for the relevant mechanisms.
Attendees include:
  • NDT Technicians, Inspection Engineers, Reliability Engineers, Asset Integrity Engineers. Maintenance Program Management, Design Engineers for Piping, Tanks and Pressure Plant.
  • Note: Persons Holding API 653, 570 or 510 ICP Certification are eligible to sit the supplementary qualification through API

    Download Course Registration (pdf)

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