External Coupons

Test samples exposed to external environments to monitor corrosion rates and effectiveness of protection measures.

External Corrosion

Jun 3, 2026

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9 min read

The Honest Holiday

Article 0067 Your potential tells a story. An external corrosion coupon tells the truth.

Michael Roberts, +1

External Coupons

May 29, 2026

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10 min read

Mixed Metal Potentials

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.

Michael Roberts, +1

Pipeline Integrity

Mar 27, 2026

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13 min read

Current Density

Article 0048 The Number Behind the Protection

Michael Roberts, +1

Pipeline Corrosion

Jan 11, 2026

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10 min read

Mixed Metal Potentials

Article 0020 Accurate CP Potentials and Interpretation

Michael Roberts, +1

Pipeline Corrosion

Dec 15, 2025

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9 min read

Understanding NACE SP0104-2020

Article 0012 The Use of Coupons for Cathodic Protection Monitoring

Michael Roberts, +1

Pipeline Corrosion

Dec 14, 2025

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7 min read

External Corrosion Coupons

Article 0011 What Are External Corrosion Coupons and Why Do They Matter for Pipe-to-Soil Potential Data?

Michael Roberts, +1

External Coupons

The Honest Holiday

Mixed Metal Potentials

Current Density

Mixed Metal Potentials

Understanding NACE SP0104-2020

External Corrosion Coupons

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