| Liquid coating performance testing |
| Dried coating film performance testing |
| Testing items | Description | ISO standard | ASTM standard | China GB standard | Internal methods |
| Flow time & Viscosity | Flow time | ISO 2431-ISO cups | ASTM D5125 ISO cups, ASTM D4212 Zahn cups, ASTM D1200 Ford cups, | GBT 6753.4-ISO cups, GBT 1723 Tu-1 & 4 cups | |
| Rotary Viscosity | ISO 2884-1 | GBT 9751.1 | |||
| Stormer visicosity | ASTM D562 | GBT 9269 | |||
| Fineness & Particle size | Fineness | ISO 1524 | ASTM D 1210 | GBT 1724 | |
| Particle size | ISO 8130-13 | GBT 21782.13 | |||
| Non-volatile content | Non-volatile content | ISO 3251， ISO 3233-volume | ASTM D 2369 | GBT 1725， GBT 9272-volume, GBT 6751， GBT6740 | |
| VOC content | VOC content | EPA method 24 | GBT 23985-weight， GBT 23986-GC | ||
| Density | Density | ISO 2811 | ASTM D1475 | GBT 6750， GBT 21862 | |
| Stability | Stability | ASTM D 2243 | GBT 6753.3， GBT 9268 |
| Testing items | Description | ISO standard | ASTM standard | China GB standard | Internal methods |
| Thickness | Thickness | ISO 2808 | ASTM D7091 | GBT 13452.2 | |
| Adhesion | Adheison-Cross cut | ISO 2409 | ASTM D3359 | GBT 9286 | |
| Adhesion Pull-off | ISO 4624 | ASTM D4541 | GBT 5210 | ||
| Hardness | Pencil hardness | ISO 15184 | ASTM D3363 | GBT 6739 | |
| Optical properties | Gloss | ISO 2813 | ASTM D523， ASTM 2457 | GBT 9754 | |
| Transmittance & Haze | ISO 14782， ISO 13468 | ASTM D1003 | GBT 2410 | ||
| Color | ISO 7724 | ASTM D2244 | GBT 11186 | ||
| Flexibility | Cylindrical mandrel | ISO 1519 | ASTM D 522 | GBT 6742 | |
| Conical mandrel | ISO 6860 | ASTM D 522 | GBT 11185 | ||
| T-bend | ISO 17132 | ASTM D4145 | GBT 30791 | ||
| Cupping test | ISO 1520 | GBT 9753 | |||
| Impact resistance | ISO 6272 | ASTM D2794 | GBT 20624 | ||
| Abrasion and Scratch resistance | Abrasion resistance | ISO 7784 | ASTM D 4060 | GBT 1768-2006 | |
| Scratch resisance | ISO 1518 | GBT 9279 | |||
| Aging test | Neutral SST | ISO 7253 | ASTM B117 | GBT 1771 | |
| SST test | ISO 9227 | GBT 10125 | |||
| Accelerated aging test | ISO 11341 Xe ISO 11507 UV and water | GBT 1865 Xe GBT 23987 UV and water | |||
| Barrier properties | WVTR | ISO 15106-2 | ASTM F1249 | GBT 26253 | |
| OTR | ISO 15105-2 | ASTM D3985 | GBT 19789 | ||
| Non-stick coating | GBT 32095.1 ~ .4 |
Dried coating film performance testing
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