Potential Readings
Potential readings on immersed structures are often taken at 3- or 5-foot elevation intervals and at several horizontal locations on or very near a structure.
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The locations of readings will be described in the specific cathodic protection SOP. Potential readings on buried structures are typically individual measurements taken directly over the structure at the test stations. However, on structures such as pipelines, occasional (e.g., 10 years) close interval surveys allow assessment of cathodic protection effectiveness between the usual test points and are a good procedure for locating and addressing trouble spots or inadequately protected locations on a structure before problems develop. The Potential Readings mobile app allows you to replace your paper record with an Android, iPhone, tablet or Windows desktop computer. The mobile form includes fields to document items such as project, structure, location, potential mV and comments. Once the mobile app is filled out a secure PDF is generated. The PDF is easy to share, and a copy is stored in your account for your corrosion control records. You can also use the App Builder to personalize and customize this mobile form.
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