| Items of Analysis | Standard of Analysis | Test Results |
| Appearance | Flake | Flake |
| Azelaic Acid（%） | ≥95 | 96.57 |
| Total Acid（%） | ≥99.0 | 99.45 |
| Monobasic Acid（%） | ≤0.05 | 0.02 |
| <C9DC（%） | ≤1.5 | 0.57 |
| >C9DC（%） | ≤2.5 | 2.0 |
| Acid Value（mg KOH/g） | 575-595 | 590.6 |
| APHA Color（Hazen） | ≤300 | 275 |
| Transmittance, 440nm（%） | ≥94 | 95.3 |
| Transmittance, 550nm（%） | ≥97 | 99.1 |
| Conclusion | Conforms to Factory Standard | |
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