GB/T 13452.4-2008 "Paints and varnishes - Filiform corrosion test on steel substrates" specifies the test method for evaluating the resistance of paint films on steel surfaces to filiform corrosion, applicable to various protective coatings. After cross-cutting, the coated test panels are placed in a specific temperature and humidity environment, and the spread of filiform corrosion is observed after continuous exposure. The test requires instruments such as a constant temperature and humidity test chamber, cross-cut tool, magnifying glass, and coating thickness gauge, providing technical support for the evaluation of the corrosion protection reliability of coatings.
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 | G50 | ICS | 87.040 |
| Release Date | 2008-05-14 00:00:00 | Implementation Date | 2008-10-01 00:00:00 |
