JIS K2510, ASTM D665, ASTM D7548, IP 135, ISO 7120, NACE TM-01-72

Corrosion on steel pipelines and tanks can lead to destructive leaks that can cost millions to fix and cause irreversible environmental damage. As a result, industries spend billions each year on corrosion detection and to slow down the natural process of corrosion. The National Association of Corrosion Engineers (NACE) indicates that small amounts of water, air, and polar compounds are some of the biggest threats to petroleum pipeline corrosion. As such, NACE carefully monitors levels of corrosion by testing the interior of pipes for these substances. The NACE system of corrosion detection is dependent upon a manual rating process in which the operator must quantify small percentages of corrosion by visually inspecting a test specimen that has been bathed in a mixture of test fuel and distilled water. This method is highly susceptible to operator error. In addition, due to differences in visual acuity, results are not repeatable.

FeDDI, from Ayalytical (USA), was designed to solve the difficulty rating of NACE TM0172 and D665 specimens accurately. It uses uses a four-step automated vision algorithm and classification process to eliminate user bias and provide repeatable results. After scanning a specimen’s entire surface area, corrosion coverage is quantified. FeDDI provides an complete automated method, which replaces the inherently difficult visual quantification referenced in NACE TM0172 and ASTM D665.


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The following accessories are recommended for purchase in sequential order:

1st Year:
  • Polishing device with chuck (specify voltage)
  • Steel test specimen for D665, NACE, each
  • 400 mL beaker for D665, D3603, D5534, each (no baffle)
  • 400 mL beaker for NACE test, each (with baffle)
  • 2 Part PTFE holder for use with NFX Handle.
  • 150 grit silicon carbide paper, 50 sheets
  • 240 grit silicon carbide paper, 50 sheets
  • FeDDI calibration standard. Made out of SS and two zones for high and low level corrosion verification. Can be used as a daily QC/Validation or for calibration of camera, size detection and motor position. Supplied in storage case with certificate valid for one year.
2nd Year:
  • Beaker cover (PMMA) for D665, NACE, each
  • Replacement NFX Handle (Integrated Motor)
  • Replacement Glass Overlay – VISAYA
  • Replacement Power Board – Universal Input
  • Replacement Z-Drive – Supplied with Camera Mount
Applicable Test Methods ASTM D665, ASTM D7548, IP 135, ISO 7120, JIS K2510, NACE TM-01-72,
Corrosion Detection Range Corrosion Coverage 0.01mm to 100%
Display Units Corrosion %, Specimen Size & Rating
Detection Method Patent Pending CMOS Digital Detection
Precision +/- 0.01% of Raw Reading
Dimension +/- 0.085mm of Height & Width
Pixel Size 0.035mm per Pixel
Optical Design  Patent Pending Optical Arrangement
Light Source LED, 7,000K
Measuring Time 2.5 minutes
Calibration Vision Calibration with Standard
Display 10.1” Projective Capacitance Touch (Multi Touch)
Interface Ethernet x2, USB 3.0 x1, USB 2.0 x4, HDMI, VGA, USB Printer, USB Mouse and Keyboard
Memory / Storage 64 GB SSD Storage
Temperature Range 10° to 35° C
Humidity Up to 85% Non Condensing
Power Auto-switching 90 ~ 264VAC, 47 ~ 63Hz, 280 Watt Power Supply
Space Requirements 80 mm (3”) on Sides and Back
Dimension 350x300x270mm (14x12x11”)
Gross Dimensions & Weight Weight 10 Kg. (22 lbs.)
400x350x530mm, 15 Kg. (15x14x21” 33lbs.)