Inspection

Asset integrity services

An inspection programme is only as good as the assumptions behind it. Asset integrity work makes those assumptions explicit: which damage mechanisms are active, at what rate, inside which operating limits, and how inspection will catch them before they matter. We help owners build, run and repair that system for pressure vessels, piping, tanks and heat exchangers.

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What we deliver

  • Damage mechanism reviews to API 571, by circuit and corrosion loop.
  • Integrity operating windows (IOWs) to API 584: critical, standard and informational limits with owners and responses.
  • Condition monitoring location (CML) selection and optimisation for piping and vessels to API 570 and API 510.
  • Corrosion rate and remaining-life calculations, and next-inspection dates by the governing code.
  • Fitness-for-service assessments to API 579-1/ASME FFS-1 for wall loss, pitting, crack-like flaws and distortion.
  • Inspection data review: cleaning up thickness histories so trends can be trusted.

Mechanical integrity under OSHA PSM

For US facilities covered by OSHA 29 CFR 1910.119, paragraph (j) requires written procedures, inspection and testing that follow recognised and generally accepted good engineering practice (RAGAGEP), documented results and correction of deficiencies. API 510, 570 and 653 are the RAGAGEP most facilities adopt. We map an existing programme against those requirements and close the gaps that an audit would find.

Data that supports decisions

Integrity decisions fail when data is scattered across spreadsheets and old reports. Results can be delivered into the client’s inspection data management system or into Atlantis software, with circuits, CMLs, readings and calculations kept together.

Governing codes and standards

  • API 571 (damage mechanisms)
  • API 584 (integrity operating windows)
  • API 510, API 570, API 653
  • API 579-1/ASME FFS-1 (fitness-for-service)
  • OSHA 29 CFR 1910.119(j) (mechanical integrity)

What you receive

  • Damage mechanism review by circuit
  • IOW register with limits and responses
  • CML plan and optimised locations
  • Remaining-life and interval calculations
  • FFS assessment reports

Industries served

  • Refining and petrochemical
  • Chemical processing
  • Gas processing and LNG
  • Power generation
  • Storage terminals

Frequently asked questions

What is an integrity operating window?

An integrity operating window is a defined limit on a process variable, such as temperature, pH or chloride content, beyond which damage rates change. API 584 describes how to set IOWs and the response required when they are exceeded.

When is a fitness-for-service assessment needed?

When inspection finds damage that does not meet the original construction code, such as wall loss below the minimum required, pitting or a crack-like flaw, and the owner needs to know whether the equipment can keep operating safely and for how long.

Talk to an inspection engineer

Send the equipment list or drawings, the inspection you need and your timing. Quotes are prepared for each scope and region.

Request a Quote

Request an inspection quote (RFQ)

Tell us the asset, the method, where it is, the governing code, your dates, the size of the job and the report you need. We reply with questions or a quote. Affordable, accessible, fully customizable — no published pricing.












Or email the same details to info@atlantisndt.com. Mobilisation: North America; confirm your location in your RFQ.

Speak to an ASNT NDT Level III

Atlantis NDT provides ASNT Level III consulting, NDT training to ASNT SNT-TC-1A, inspection management software and independent report validation. Request a free consultation and we will return a tailored quote — affordable, accessible and fully customizable to your programme.