GB/T 17720-1999 "Review of metal coating porosity test" systematically sorts and summarizes various test methods for metal coating porosity. The standard analyzes the principle, scope of application, advantages and disadvantages and application scenarios of different porosity tests, including moisture sulfur test, gas penetration test, etc., to provide reference for scientific selection of appropriate porosity detection methods, help to accurately evaluate metal coating mass and protection performance, and standardize related testing work.
| Status | Active |
|---|---|
| CCS | A29 | ICS | 25.220.40 |
| Release Date | 1999-04-08 00:00:00 | Implementation Date | 1999-09-01 00:00:00 |