510.3-2025 (PDF) - Guide for Conducting Corrosion Potential (Half-Cell) Testing for Steel Reinforced Concrete Structures

This guide is intended to provide information and guidance on the “half-cell” corrosion potential test, described in ASTM C876. It describes recommended tools and materials, selection of testing locations, connections to reinforcing steel, measurements and verification associated with this test. The information presented is based on the experience of owners, engineers, contractors, and suppliers.