AMPP CP1 Tester Practice Questions - AMPP CP1 Cathodic Protection Tester Exam

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A CP tester reads a pipe-to-soil potential of -0.780 V using a silver/silver chloride (Ag/AgCl, saturated KCl) reference electrode. Approximately what is the equivalent potential in mV vs CSE?

-661 mV -780 mV -899 mV -960 mV

Correct Answer:

-899 mV

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