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  1. InspectorShain

    Clarification of "In-Service" versus "Out of Service"

    Is there a code reference which clarifies the definition of "Out of Service", in the context of rendering a pressurized component exempt from API 510/570/etc. Inspection requirements? Also, various refineries I've worked in performed "Out of Service" or "Abandoned in Place" equipment structural...
  2. InspectorShain

    Isolating Equipment/Piping via physical air-gap to render it exempt from inspection?

    I have worked in refineries where it was an Owner/User procedural requirement to physically disconnect a vessel or piping system, and create an air-gap, prior to being considered "Out of Service" and rendering the component exempt from inspection requirements. My question is: Is anyone aware of...

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