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Homepage>ASTM Standards>23>23.040>23.040.99>ASTM G0008-24 - Standard Test Methods for Cathodic Disbonding of Coated Steel
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Released: 01.02.2024

ASTM G0008-24 - Standard Test Methods for Cathodic Disbonding of Coated Steel

Standard Test Methods for Cathodic Disbonding of Coated Steel

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Standard number:G0008-24
Keywords:anode; cathode; cathodic disbonding; electrolyte; impressed current; sacrificial anode; steel;

1.1 These test methods apply to procedures for determining the degree of disbondment of a coating from a steel substrate when placed in contact with an electrolyte and a potential is applied to the steel. Specimens may include coated steel pipe or coated flat or curved steel plate. The coating applied to the steel substrate shall be non-metallic and shall not show flow characteristics at the test temperature.

1.2 These test methods apply to specimens that are immersed in an electrolyte bath or specimens with an attached electrolyte cell at ambient room temperature, 21 °C to 25 °C (70 °F to 77 °F), conditions. If higher temperatures are required, use Test Method G42.

1.3 These test methods apply to methods of polarization including sacrificial anodes or impressed current applied to the steel by a rectifier.

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

1.5 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.