Inspectioneering

Consequence of Failure (COF)

Consequence of Failure (COF) is one part of the equation to determine risk as part of Risk Based Inspection (RBI) methodology. The COF, calculated together with the Probability of Failure (POF), helps establish the risk level for particular piece of equipment and set inspection intervals based on the calculated risk.

COF is calculated by reviewing and ranking the potential consequences for the equipment, personnel, environment, etc. in the event of equipment failure. More details on COF are given in API RP 580 - Risk Based Inspection (RBI), which contains directions on developing, implementing and maintaining an effective RBI program.

 

Related Topics

Probability of Failure (POF)

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    • Published on March 24, 2017

      Greg Alvarado discusses the concept of "risk in square feet per year", a powerful metric found in the API RP 581 Risk Based Inspection methodology. Understanding metrics such as this one will allow you to begin trending your risks, identifying best practices, and feel comfortable with the decisions you are making in your facility or corporation.

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