ASTM G19-04
Standard Test Method for Disbonding Characteristics of Pipeline Coatings by Direct Soil Burial

Standard No.

ASTM G19-04

Release Date

2004

Published By

American Society for Testing and Materials (ASTM)

Status

Withdraw 2010-06

Latest

ASTM G19-04

Scope

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.

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.

ASTM G19-04 Referenced Document

• ASTM G12 Standard Test Method for Nondestructive Measurement of Film Thickness of Pipeline Coatings on Steel
• ASTM G62 Standard Test Methods for Holiday Detection in Pipeline Coatings

ASTM G19-04 history

• 2004 ASTM G19-04 Standard Test Method for Disbonding Characteristics of Pipeline Coatings by Direct Soil Burial
• 1988 ASTM G19-88(1996)e1 Standard Test Method for Disbonding Characteristics of Pipeline Coatings by Direct Soil Burial