GB/T 31591-2015 "Paints and varnishes - Determination of scratch resistance" is applicable for determining the scratch resistance of coatings using a reciprocating scratch tester. Under specified load, the coating surface is subjected to reciprocating friction with a specific abrasive material. The color difference before and after scratching is measured using a colorimeter, or the degree of scratching is assessed visually. The type of abrasive material, number of friction cycles, and load parameters are clearly defined. The average value is taken from parallel tests to ensure the repeatability and comparability of the test results.
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 | 2015-06-02 00:00:00 | Implementation Date | 2015-11-01 00:00:00 |
