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Business Owner and Operator of Roberts Corrosion Services, LLC
Pipeline Integrity
+4
Oct 19, 2026
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8 min read
Article 0075 — Every standard that tells you how to count bacteria also tells you the count by itself proves nothing. Three conditions have to be met before MIC is the answer.
Cathodic Protection
Sep 10, 2026
9 min read
Article 0077 — A test station shunt has a ceiling and a floor. The amp rating is the ceiling. Your meter's last digit is the floor. Pick the shunt for the current you expect, or a healthy anode bank will read 0.0 mV.
Aug 19, 2026
10 min read
Article 0076 — The number I gave our crews for years was right. The reason I gave for it was wrong, and the difference matters more than I expected.
Aug 4, 2026
Article 0074 — It is a condition, not a number of feet. You find it with a voltmeter, it moves with the current crossing the pipe, and the place it hides is the one place you most need it.
Corrosion Inspection
Jul 26, 2026
Article 0073 The series is a measurement, not a ranking handed down from chemistry. The version most of us memorized was built in seawater, the soil version reads differently, and on the soil version steel appears four separate times.
Jul 6, 2026
Article 0071 A foreign CP system can shift your readings without exchanging any current with your pipe. Interference damages steel; influence damages data. Test before you bond.
Jun 27, 2026
Article 0070 Field Kits vs. Lab Analysis in the Race Against Chemistry Change
Coating Inspection
Jun 18, 2026
Article 0069 A disbonded coating can wall off the very steel it was meant to protect.
Jun 10, 2026
11 min read
Article 0068 Where OIL RIG came from, why the names mislead, and the trap that catches good techs.
External Corrosion
Jun 3, 2026
Article 0067 Your potential tells a story. An external corrosion coupon tells the truth.
External Coupons
May 29, 2026
Article 0065 When the voltmeter reads protection but the steel is still corroding — and how the composite reading hides what's actually happening at the pipe.
May 22, 2026
Article 0064 How each method works, where each tends to do well, where each tends to struggle, and what to weigh when you're deciding between them.
May 15, 2026
7 min read
Article 0063 On the generation of corrosion technicians that's retiring, the one coming up behind it, and what gets lost in the handoff.
May 10, 2026
6 min read
Article 0062 When CP is Pushed Past its Upper Limit
May 3, 2026
Article 0060 Why the Ohmmeter Lies - and What to Use Instead
CP Rectifiers
Apr 28, 2026
Article 0059 A systematic approach to diagnosing rectifier problems from the incoming AC to the output terminals
Apr 26, 2026
Article 0058 Design calculations get you close. Field testing gets you there.
Apr 19, 2026
Article 0056 How to screen for AC-induced corrosion risk during a close interval survey
Apr 16, 2026
16 min read
Article 0055 Test Procedure, Worked Calculations, Anode Bed Design, and Why the Numbers Tell You More Than You Think
Pipeline Excavation
Apr 12, 2026
Article 0054 When the Amps Drop to Zero
Apr 9, 2026
Article 0053 Drainage Bond Sizing: The Calculation Behind the Mitigation
Apr 5, 2026
Article 0052 The Pipe as Its Own Shunt
Mar 31, 2026
Article 0050 When the Current on Your Pipeline Belongs to Someone Else
Mar 29, 2026
Article 0049 How a Polarization Curve Solves a Problem Nobody Can Dig Up
Mar 27, 2026
Article 0048 The Number Behind the Protection
