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Technology Application
LFET RFET BFET ECT Ultrasound OSET Support

TesTex uses a variety of state-of-the-art electromagnetic techniques to scan for defects in both ferrous and nonferrous materials and structures.


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LFET RFET BFET ECT Ultrasound OSET Support
Boiler Tubes AGS Tanks Pipelines Feedwater Heaters Heat Exchangers Finned Tubes Condensers Welds
Radio Field Electromagnetic Technique Triton RFET
Balance Field Electromagnetic Technique Triton BFET
Off Surface Electromagnetic Technique OSET - Scout
Ultrasonic Inspection Helix XT IRIS Echo 20/20

This is a great place to check out Technical papers, Case Studies, Videos and Testimonials related to our specialized non-destructive testing products and services.

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Above Ground Storage Tank Inspections

Above Ground Storage Tank Inspection

In addition to our API 653 inspections, TesTex provides multiple tank floor scanning services. These services use our Low Frequency Electromagnetic Technique (LFET), the Falcon Mark II, and Saturation Low Frequency Eddy Current Technique, the Falcon S Series. Also, services using our Hawkeye 2000 System to inspect above ground storage tank welds.

The Low Frequency Electromagnetic Technique (LFET) does not use permanent magnets as is common in Magnetic Flux Leakage (MFL) equipment; so, it is lightweight and portable. The Falcon Mark II can scan through coatings and tightly-bonded, uniform scale. The Falcon Mark II is used to scan the floor plates for topside and underside corrosion. Areas identified with the scanner are then marked and verified with ultrasonics.

The Falcon S Series uses similar technology to our Mag Wave system, in that it brings Eddy Current accuracy to ferrous plates. The highly sensitive nature of eddy current allows the scanner to detect and size top side and bottom side pitting, and localized wall loss. Additionally, The Falcon S Series can detect cracks. One other exciting feature is the ability of the Falcon S Series to scan through non-metallic coatings of up to 0.5 in. (12mm)

TesTex also offers a smaller Falcon JR and Falcon S hand scanner based off of their respected technologies to inspect inaccessible areas on the floor around items like support legs, sumps, buckled annular plates.

AGST Corrosion Cell
Waveform shows a corrosion cell on a above ground storage tank

The Hawkeye is used to scan welds and detects surface and sub-surface cracks. TesTex also offers magnetic particle inspections and vacuum box testing as alternatives.

TesTex Viper Crawler System is a perfect solution for UT scans on ferrous above ground storage tanks and can be a more cost effective solution than scaffolding.

Tank Floor Map
Tank floor map generated with mapping software.

Tank Report
Tank floor plate showing areas of pitting.

The results are presented in a detailed inspection report, and our inspections can include:

  • Floor scans using Low Frequency Electromagnetic Technique (LFET) and/or Saturation Low Frequency Eddy Current scanners and hand scanners to detect topside and bottom side corrosion.
  • Scanning through coatings and tightly bonded scale.
  • Shell visual and or ultrasonic thickness inspections via remote crawler or rope access techniques
  • Foundation settlement assessments to detect various forms of tank foundation movement
  • Weld inspection via magnetic particle, electromagnetic techniques, liquid penetrant, UT weld inspection and vacuum testing techniques
  • Visual inspection of the tank bund wall and bund area
  • RBI (Risk Based Inspection) & site audits for determining inspection intervals & inspection work scopes
  • Inspection Management Software

Click here to to see our Tank Inspection Services video.


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