Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions and symbols
3.1 Terms and definitions
3.2 Symbols
4 Buried structure to electrolyte potential
4.1 Electrical equipment
4.2 Potential measurement
4.3 Factors influencing the potential measurement
4.4 Potential measurement techniques
4.4.1 Measuring technique including IR drop (on
potential measurement)
4.4.2 Measuring techniques to determine IR free
potentials (E[ir free])
5 Immersed structure to electrolyte potential
5.1 Electrical equipment
5.2 Potential measurements
5.2.1 Direct potential measurement methods
5.2.2 Indirect potential measurement method
6 Other measurements
6.1 Current measurements (d.c.)
6.2 Isolating joints
6.3 Foreign structures
6.4 Coating
Annex A (informative) Table A.1 - Electrodes for Potential
Measurements in Soil and/or Aqueous Media
Annex B (informative) Current reduction technique
Annex C (informative) Above ground surveys used to measure
pipe to soil potential along a buried pipeline
Annex D (informative) Above ground surveys used to assess
the coating condition and to locate coating defects
Annex E (informative) Special off potential measurements
in stray currents areas
Annex F (informative) Explanatory note on the use of the
intensive measurement technique and the calculation
of the IR free potential (E[IR free])
Annex G (informative) Examples of typical coupons and
external potential test probe for pipe
Annex H (normative) Accuracy of potential measuring
equipment
Annex I (informative) Accuracy of current measurement
Annex J (informative) Evaluation of the resistance of
isolating joints
Annex K (informative) Current injection test on isolating
joints
Bibliography