ASTM-G19 Standard Test Method for Disbonding Characteristics of Pipeline Coatings by Direct Soil Burial (Withdrawn 2010)

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Standard Test Method for Disbonding Characteristics of Pipeline Coatings by Direct Soil Burial (Withdrawn 2010)


1.1 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.

1.2 Results may vary widely when test sites are in different geographical areas of the country, and even in different localities.

1.3 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.

1.4 The values stated in SI units to three significant decimals are to be regarded as the standard. The values given in parentheses are for information only.

This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Significance and Use

Coated pipe is seldom, if ever, buried without some damage to the coating. Hence, an actual soil-burial test can contribute significant data, provided the method of testing is controlled and the test specimen monitored and the relationship between the area disbonded, the current demand, and the mode of failure is fully understood.

Means are provided for measuring and following the electrical potential and current flow and relating these data to the final measurement of disbonded area.


cathodic disbonding; pipeline coatings; soil burial; ICS Number Code 87.040 (Paints and varnishes)

To find similar documents by ASTM Volume:

06.02 (Paint -- Products and Applications; Protective Coatings; Pipeline Coatings)

To find similar documents by classification:

87.040 (Paints and varnishes Including coating powders, paint coatings and protective paint systems)

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Publication Date

Nov. 1, 2004

Document Type

Test Method

Page Count

4 pages

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