| Item | Unit | Test Method | Specification |
|---|---|---|---|
| Appearance | -- | Clear liquid | Visual |
| Colour | APHA | ASTM D 1209 | 25 Maximum |
| Specific Gravity @ 20° C | -- | ASTM D 4052 | 0.925 - 0.929 |
| Density @ 20° C | g/cm³ | ASTM D 4052 | 0.923 - 0.927 |
| Acidity as Adipic Acid | % | ASTM D 1045 | 0.01 Maximum |
| Ester Content | wt% | ASTM D 3465 | 99.0 Minimum |
| Water | wt% | ASTM E 1064 | 0.05 Maximum |
| Refractive Index @ 20° C | -- | ASTM D 1045 | 1.443 - 1.447 |