ASTM
G 8 : Standard Test Method for Cathodic
Disbonding of Pipeline Coatings |
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These test
methods cover accelerated procedures for
simultaneously determining comparative
characteristics of insulating coating systems
applied to steel pipe exterior for the purpose of
preventing or mitigating corrosion that may occur
in undergroung service where the pipe will be in
contact with inland soils and may or may not
receive cathodic protection. They are intended
for use with samples of coated pipe taken from
commercial production and are applicable to such
samples when the coating is characterized by
function as an electrical barrier.
This test
method is intended for testing coatings submerged
or immersed in the test solution at room
temperature. When it is impractical to submerge
or immerse the test specimen, Test Method G 95
may be considered where the test cell cemented to
the surface of the coated pipe specimen. If
higher temperatures are required, see Test Method
G 42. If a specific test method is required with
no options, see Test Method G 80.
The values
stated in SI units to 3 significant decimals are
to be regarded as the standard. The values given
in parentheses are for information only.
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