AFH32-1290(I) — Cathodic Protection Field Testing

AFH32-1290(I) governs field testing, operation, and maintenance of cathodic protection systems at military installations.

Search AFH32-1290(I)

  • Publication number: AFH32-1290(I)
  • Title: CATHODIC PROTECTION FIELD TESTING
  • Date: 2014-05-29

View AFH32-1290(I) on armypubs.army.mil

It covers close interval and corrosion surveys, water tank calibration, rectifier checks, anode bed surveys, leak surveys, troubleshooting, and maintenance. It provides procedures for potential, dielectric, casing, resistivity, pH, interference, and other tests.

Topics covered

  • Cathodic protection systems
  • Close interval corrosion surveys
  • Rectifier operational checkout
  • Impressed current anode bed surveys
  • Galvanic anode checks
  • Leak surveys
  • Cathodic protection test procedures
  • Electrolyte resistivity measurement

Questions and answers

How often does cathodic protection system maintenance need to occur?

Maintaining Cathodic Protection Systems requires periodic (recurring) maintenance to ensure proper operation.

Where are the required cathodic protection surveys and intervals identified?

The required surveys and intervals are identified in MIL HDBK 1136, Operation and Maintenance of Cathodic Protection Systems.

What is the purpose of a close interval corrosion survey?

The Close Interval Corrosion Survey is conducted to ensure that the entire structure has adequate cathodic protection.

What equipment serviceability must be checked for cathodic protection surveys?

Check serviceability of reference electrode (half-cell), meters, meter leads, wire reels, and other equipment.

What other equipment may be used for impressed current system testing?

Other equipment which may be used includes waveform analyzers with pulse generators (for impressed current systems with one to 11 rectifiers), or high input resistant DC voltmeter (10 megaohms or higher), wire reels, intermediate electrode extension, and copper/copper sulfate electrode.

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