| ITEM | ??? STANDARD |
| Description | White crystalline powder |
| Melting range | 118-122℃ |
| PH | 5.0-7.0 |
| Loss on drying, % | =<0.20 |
| Ash? % | =<0.01 |
| Heavy metals (Pb) mg/kg | =<5.0 |
| Assay (on dry basis, %) | >=99.0 |
| As, mg/kg | =<2.0 |
| Cont of bacteria, cfu/g | =<300 |
| Coliform | Negative |
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