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| ITEM | STANDARD |
| APPEARANCE | WHITE CRYSTALLINE POWDER |
| ASSAY | 98.0-102.0% |
| SPECIFIC ROTATION | +84.0°~+87.5° |
| PH OF 10% AQUEOUS SOLUTION | 5.0-8.0 |
| MOISTURE | ≤ 2.0 % |
| METHANOL | ≤ 0.1% |
| RESIDUE ON IGNITION | ≤ 0.7% |
| HEAVY METALS | ≤ 10PPM |
| LEAD | ≤ 3PPM |
| ARSENIC | ≤ 3PPM |
| TOTAL PLANT COUNT | ≤ 250CFU/G |
| YEAST & MOULDS | ≤ 50CFU/G |
| ESCHERICHIA COLI | NEGATIVE |
| SALMONELLA | NEGATIVE |
| STAPHYLOCOCCUS AUREUS | NEGATIVE |
| PSEUDOMONAD AERUGINOSA | NEGATIVE |