GB/T 7790-2008 specifies the test method for evaluating the resistance to cathodic disbondment of coatings exposed to seawater. It is primarily applicable to external anti-corrosion coatings for steel structures such as ships and offshore platforms. By simulating seawater environments and applying cathodic protection potentials, the method determines the disbondment radius of the coating at artificial defects caused by cathodic reactions, thereby assessing its long-term protective performance.
This summary is not the original standard text and is for reference only. For accurate information, please obtain it through official channels.
| Status | Active | ||
|---|---|---|---|
| CCS | U05 | ICS | 47.020.05 |
| Release Date | 2008-07-30 00:00:00 | Implementation Date | 2009-02-01 00:00:00 |