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| First grade | Second grade | |
| Appearance | white odorless transparent liquid | |
| Chroma(APHA)≤ | 20 | 60 |
| Ester%≤ | 99.5 | 90 |
| Acidity ( as benzene dicarbonic acid )% ≤ | 0.01 | 0.06 |
| Flash point(open)≤ | 195 | 160 |
| Loss on heat (125oC,2 hours)%≤ | 0.3 | 0.5 |
| Chroma after heat treatment | 80 | 160 |
Polyol benzoate