RP0169-2002
NACE International 15
reference electrode. Two commonly used reference
electrodes are listed below along with their voltage
equivalent (at 25°C [77°F]) to -850 mV referred to a
saturated copper/copper sulfate reference electrode:
6.4.1.1 Saturated KCl calomel reference
electrode: -780 mV; and
6.4.1.2 Saturated silver/silver chloride reference
electrode used in 25 ohm-cm seawater: -800 mV.
6.4.2 In addition to these standard reference
electrodes, an alternative metallic material or structure
may be used in place of the saturated copper/copper
sulfate reference electrode if the stability of its
electrode potential is ensured and if its voltage
equivalent referred to a saturated copper/copper
sulfate reference electrode is established.
________________________________________________________________________
Bibliography for Section 6
Criteria for Copper
Schwerdtfeger, W.J. “Criteria for Cathodic Protection—
Highly Resistant Copper Deteriorates in Severely
Corrosive Soil.”
Materials Protection
57, 9 (1968): p.
43.
Criteria for Aluminum
CP1021. “Code of Practice for Cathodic Protection.”
London, England: BSI,
(3)
August, 1973, pp. 13-14.
DIN30 676 (latest revision). “Design and Application of
Cathodic Protection of External Surfaces.” Berlin,
Germany: Deutsches Institut fur Normung, October,
1985.
NACE Publication 2M363 (withdrawn). “Recommended
Practice for Cathodic Protection of Aluminum Pipe
Buried in Soil or Immersed in Water.”
Materials
Performance
2, 10 (1963): p. 106.
Schwerdtfeger, W.J. “Effects of Cathodic Current on the
Corrosion of An Aluminum Alloy.” National Bureau of
Standards
(4)
Journal of Research
68c (Oct.-Dec. 1964):
p. 283.
Criteria for Steel and Cast Iron
Doremus, E.P., and T.L. Canfield. “The Surface Potential
Survey Can Detect Pipeline Corrosion Damage.”
Materials Protection
6, 9 (1967): p. 33.
Ewing, S.P. “Potential Measurements for Determination of
Cathodic Protection Requirements.”
C
ORROSION
7, 12
(1951): p. 410.
Haycock, E.W. “Current Requirements for Cathodic
Protection of Oil Well Casing.”
C
ORROSION
13, 11
(1957): p. 767.
Kuhn, R.C. “Cathodic Protection of Underground Pipelines
Against Soil Corrosion.”
American Petroleum Institute
Proceedings
IV, 14 (1953): p. 153.
McCollum, B., and K.H. Logan. National Bureau of
Standards Technical Paper No. 351, 1927.
Romanoff, M.
Underground Corrosion
. Houston, TX:
NACE, 1989.
Pearson, J.M. “Electrical Instruments and Measurement in
Cathodic Protection.”
C
ORROSION
3, 11 (1947): p. 549.
Pearson, J.M. “Null Methods Applied to Corrosion
Measurements.”
Transactions of the Electrochemical
Society
81 (1942): p. 485.
Schwerdtfeger, W.J., and O.N. McDorman. “Potential and
Current Requirements for the Cathodic Protection of
Steel in Soils.”
C
ORROSION
8, 11 (1952): p. 391.
Sudrabin, L.P., and F.W. Ringer. “Some Observations on
Cathodic Protection Criteria.”
Corrosion
13, 5 (1957) p.
351t. Discussion on this paper
C
ORROSION
13, 12
(1957): p. 835t.
Additional References
Barlo, T.J., and W.E. Berry. “A Reassessment of the -0.85
V and 100 mV Polarization Criteria for Cathodic
Protection of Steel Buried in Soils.
Ninth International
Congress on Metallic Corrosion
4, (1984): June 7.
National Research Council Canada.
(5)
Barlo, T.J., and W.E. Berry. “An Assessment of the Current
Criteria for Cathodic Protection of Buried Steel Pipes.”
Materials Performance
23, 9 (1984).
Barlo, T.J., and R.R. Fessler. “Interpretation of True Pipe-to-
Soil Potentials on Coated Pipelines with Holidays.”
CORROSION/83, paper no. 292. Houston, TX: NACE,
1983.
___________________________
(
3
)
British Standards Institution (BSI), British Standards House, 389 Chiswick High Road, London W4 4AL, United Kingdom.
(
4
)
National Institute of Standards and Technology (NIST) (formerly National Bureau of Standards), Gaithersburg, MD 20899.
(
5
)
National Research Council Canada (NRC), 1200 Montreal Road, Ottawa, Ontario K1A 0R6, CANADA.
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