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Quality One, Inpsection Company, LLC

Quality-One Inspection Company, LLC is staffed with professionals dedicated to provide reliable inspection results based on facts, findings, tests, and knowledge of industry standards. Whether we are inspecting pressure vessels for fatigue cracking, inspecting welds or testing materials to industry standards, we are the inspection company you can count on.

We are located in the Portland, Oregon area providing worldwide, 24 hour service for non-destructive testing (NDT, NDE, NDI), pressure vessel inspection, storage tank inspection, weld inspections, quality assurance (QA/QC), and a variety of other services. 


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Recent Projects

February 24, 2015

Automated Ultrasonic Testing (AUT)..more

November 5, 2014

Crack Removal..more

August 7, 2014

Weld Quality..more

Image courtesy of Olympus NDT
Phased Array Ultrasonic Testing

Phased array ultrasonic testing (UT) is quickly becoming the inspection method of choice for the inspection of welds. The complex technology provided by using phased array UT instruments and transducers benefits the technician by providing proven technology when it comes to interpretation of the UT data.

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Eddy Current Testing

Eddy current inspection is one of several NDT methods that use the principal of "electromagnetism" as the basis for conducting examinations. Several other methods such as Remote Field Testing (RFT), Near Field Testing (NFT) and Flux Leakage.

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Non-Destructive Testing


  • Eddy Current Testing (ET)
  • Ultrasonic Testing, including Phased Array (UT)
  • Magnetic Particle Testing (MT)
  • Penetrant Testing (PT)

Specialized Inspection


  • Development of New Inspection Procedures
  • Third-Party Consultation
  • Interpretation of Test Results
  • Tank Crawlers
  • IRIS Inspections

Weld Inspections

  • AWS Certified Welding Inspectors (CWI)
  • Welder Certification
  • Procedure Qualification Records (PQR)
  • Welding Procedure Specifications (WPS)

Tank Inspections

  • API 653 Certified Tank Inspector
  • Certified STI SP001 Inspectors