GB/T 7791-2014 "Test Method for Drag Reduction Performance of Antifouling Paints" is applicable to the determination of the drag reduction performance of ablative, self-polishing, and easily removable fouling-release antifouling paints. It specifies the principles, equipment, procedures, and data processing for laboratory testing. The test involves the use of a precision numerically controlled motor to drive the rotation of a cylindrical specimen. The rotational torque is measured by a torque sensor to calculate the resistance at the interface between the coating and seawater. This is combined with a roughness meter to determine the surface roughness parameters of the coating, providing a standardized technical basis for evaluating the drag reduction performance of antifouling paints.
| Status | Active | ||
|---|---|---|---|
| CCS | G50 | ICS | 87.040 |
| Release Date | 2014-07-08 00:00:00 | Implementation Date | 2014-12-01 00:00:00 |
