Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 A.C. interference sources
5 Simplified description of a.c. corrosion process
6 Evaluation of a.c. corrosion likelihood
6.1 Prerequisite
6.2 General
6.3 Installation/use of coupons
6.4 Influence of a.c. voltage on the structure
6.5 Off potential influence
6.6 Influence of a.c. current density
6.7 Influence of the on potential toward a.c. corrosion
likelihood
6.8 Influence of current ratio "I[a.c.]/I[d.c.]"
6.9 Influence of soil characteristics on a.c. corrosion
likelihood
6.10 Assessment of the a.c. corrosion likelihood of the
pipeline by using corrosion coupons
7 Design consideration
7.1 General
7.2 New interference cases (pipelines/power lines/traction
systems in the design phase) - Condition for calculation
8 Interpretation of data, limits and relevant aspects
9 Mitigation measures
10 Monitoring
Annex A (informative) Assessment of the corrosion condition by
using the electric resistance technique
Annex B (informative) Coulometric oxidation of corrosion products
formed by a.c. corrosion
Bibliography