The QJ 990.9-1986 standard applies to the water resistance inspection of various coatings, especially coatings with water resistance requirements for basic and auxiliary products. The standard includes two methods of immersion and boiling water tests. Through these methods, the durability and Stability of coatings in different water environments can be evaluated. The standard requires that the sample and the product under inspection are prepared at the same time, and the material and treatment process are consistent to ensure the accuracy and Reliability 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 | ICS | ||
| Release Date | 1986-04-05 00:00:00 | Implementation Date | 1986-09-01 00:00:00 |