ASTM G 19 - 88(Reapproved 1996) Standard Test Method for Disbonding Characteristics of Pipeline Coatings by Direct Soil Burial

ASTM 1988(Reapproved 1996), 4p. G 19 Standard Test Method for Disbonding Characteristics of Pipeline Coatings by Direct Soil BurialScope
This test method describes the determination of the relative disbonding characteristics of damaged coatings on steel pipe by cathodic protection potentials in direct soil burial. This test method is intended to apply to the testing of all types of nonmetallic pipeline coatings and tapes including thermoplastics, thermoset, and bituminous materials.
Results may vary widely when test sites are in different geographical areas of the country, and even in different localities.
This test method is limited to nonconducting, or nonmetallic pipe coatings and is not applicable to conducting materials such as zinc coatings on steel pipe.