Basic Chemistry and Basic Corrosion Theory 2:29
CP 1 – Cathodic Protection Tester Course Manual
© NACE International, 2000
02/01/05
Experiment 2.2–Corrosion-Cell
Step A
Copper Sheet
V
Tap Water in Tray
Steel Sheet
1. Place the copper and steel pieces at opposite ends of the tray.
2. Add 1-1/2 inch of tap water to the tray.
3. Set the meter to the V DC scale as shown on the next page.
4. Connect the meter to the metal samples as indicated below.
Results
Meter Positive
Lead
Meter Negative
Lead
Anticipated
Potential mV
Actual Potential
Copper
Steel +400
Steel
Copper –400
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