Nace CP 1 - Criteria for Cathodic Protection; Figure 2: Temporary Groundbed for Current Requirement Testing

RP0193-2001
NACE International 5
Figure 2: Temporary Groundbed for Current Requirement Testing
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Section 4: Criteria for Cathodic Protection
4.1 This section lists criteria for cathodic protection that, if
complied with either separately or collectively, indicate that
cathodic protection of an on-grade carbon steel storage
tank bottom has been achieved.
4.2 General
4.2.1 The objective of using cathodic protection is to
control the corrosion of an on-grade carbon steel
storage tank bottom in contact with an electrolyte. The
selection of a particular criterion for achieving this
objective depends, in part, on prior experience with
similar tank bottoms and environments in which the
criterion has been successfully used.
4.2.2 The criteria in Paragraph 4.3 were developed
through laboratory experiments or were determined
empirically by evaluating data obtained from
successfully operated cathodic protection systems. It
is not intended that personnel responsible for corrosion
control be limited to operating under these criteria if it
can be demonstrated by other means that the control
of corrosion has been achieved.