| NO. | Test Item | Superior Grade | Our typical Value |
| 1 | Chroma,(Platinum-Cobalt) | ≤20 | 15 |
| 2 | Purity | ≥99.5 | 99.50 |
| 3 | Density(200C),g/cm3 | 0.981-0.985 | 0.9824 |
| 4 | Acidity(calculated by phthalic acid),% | ≤0.02 | 0.008 |
| 5 | Flashing Point | ≥210 | 211 |
| 6 | Moisture content | ≤0.03 | 0.018 |
| 7 | Volume resistivity,1010Ω·m | ≥3 | 10.70 |








