The GB/T 30789.3-2014 standard specifies a method for assessing the rusting grade of the surface of painted steel by comparing it with the standard picture. This section uses the standard picture to show the comprehensive damage grade of rust under coating, including rust through coating. The standard picture is selected from the "European rust grading system" and provides a comparison with the Miscellaneous standard. This method is suitable for the evaluation of rusting caused by artificial accelerated aging and natural exposure, providing a standard basis for the quality control of Coating products.
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 | 2014-07-08 00:00:00 | Implementation Date | 2014-12-01 00:00:00 |