| Inspection Item | Measurement Units | Qualified Result | Inspection Result |
| Appearance | Colorless and clear liquid | Colorless and clear liquid | |
| Purity | ≥ | 99. 95% | 99.99% |
| Relative Density 20ºC (g/cm³) | -- | 1.31-1.33 | 1.325 |
| Chroma (APHA) | ≤ | 10 | 5 |
| Moisture | ≤ | 0.010% | 0.006% |
| Acidity (as HCL) | ≤ | 0.0008% | 0.0004% |
| Chloride | ≤ | 0.0005% | 0.0001% |
| Residue on evaporation | ≤ | 0.002% | 0.0005% |