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At TesTex, we know your turnaround depends on our turnaround.


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

LFET Products

Low Frequency Electromagnetic Technique (LFET) products are used to inspect storage tanks, other convex or concave ferrous surfaces, as well as nonferrous metal tubing/piping surfaces.

RFET Products

Remote Field Electromagnetic Technique (RFET) products are used to quickly and accurately inspect ferrous tubing found in heat exchangers and drum-to-drum boiler generating banks.

BFET Products

Balance Field Electromagnetic Technique (BFET) products are used to detect surface and sub-surface cracking in welds and base metals.

ECT Products

Eddy Current Technique (ECT) is used to quickly and accurately inspect non-ferrous metal tubing from the tube internal dimension (ID).


TesTex has enhanced ultrasonic (UT) inspection for many different applications, including tank shells, UT prove-ups, finned tubes and waterwalls.


TesTex produces standard and custom probes (and calibration tubes) for all of its ID (internal dimension) inspection equipment.


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

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Diamond/Deck Plate Inspection

Diamond Plate Sample

Deck Plate Safety is an important part of plant inspections. A power plant in Texas recently had a worker fall through a corroded deck plate. TesTex, Inc. used the Low Frequency Electromagnetic Technique (LFET) to examine Diamond Deck Plates. TesTex has now scheduled inspections at power and chemical plants.

Diamond Plate Waveform
Example of a waveform from a sample deck piece sent to TesTex.

TesTex Advantages

  • LFET can inspect both ferrous and non-ferrous material
  • Requires no couplant
  • 2,000 – 3,000 linear feet can be scanned using LFET in a single twelve-hour shift
  • More than 40 inspection crews can be deployed ar any given time
  • Crews are equipped with multiple scanner/probe sizes and back-up equipment to avoid downtime
  • LFET down not require extensive cleaning
  • LFET can get more are coverage than other respective techniques
  • All data is collected and stored for future reference


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