| ITEM | STANDARD |
| Identification | Reaction of lactates |
| Stereo chemical purity(L-isomer) | >=95% |
| Assay | 85- 89% |
| Color fresh | =< 70APHA |
| Chloride | =< 0. 1% |
| Sulphate | =<0.25% |
| Iron | =<0.001% |
| Residue on ignition | =<0. 1% |
| Lead | =<0.0005% |
| Cyanide | =<0.0005 |
| Sugar | Passes test |
| Citric、Oxalic、Phosphoric、and Tartaric acids | Passes test |