GB/T 9265-2009 "Architectural coatings—Determination of alkali resistance of the film" specifies the method for determining the alkali resistance of architectural coatings, applicable to various types of architectural coating products. The test involves immersing coated panels in a sodium hydroxide solution of specified concentration and maintaining them at a specific temperature for a designated period. Afterward, the coating is observed for damage such as blistering or peeling. The test requires equipment such as a constant-temperature water bath, corrosion-resistant containers, and tools for evaluating coating appearance, providing a basis for assessing the durability of architectural coatings in alkaline environments.
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 | 2009-06-02 00:00:00 | Implementation Date | 2010-02-01 00:00:00 |
