This standard practice details a procedure for electrical detection of minute discontinuities in new coating systems that are applied to conductive substrates. There are two types of testing equipment covered: low-voltage wet sponge testers and high-voltage spark testers. Electrical testing to determine the presence and number of discontinuties in a coating is performed on a nonconductive coating applied to a conductive substrate.
NACE SP0188-2006
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Discontinuity (Holiday) Testing of New Protective Coatings on Conductive Substrates
National Association of Corrosion Engineers , 12/27/2006
Pages: 8
