| ITEMS | Specifications |
| Appearance | White Crystals or crystalline powder |
| Identification | Chemical Method or IR or HPLC |
| Appearance of Solution | Clear and Colourless |
| Specific Roatation | -29°∼-32° |
| PH | 5.5-9.5 |
| Water Content =< % | 1 |
| Assay % | 97.0∼103.0 |
| Residue on Ignition =< % | 0.1 |
| Residue Ethanol =< % | 0.5 |
| Heavy Metals =< PPM | 10 |
| Arsenic =< PPM | 1 |
| Chloride =< % | 0.4 |
| Lead =< PPM | 3 |
| Mercury =< PPM | 0.1 |
| Cadmium =< PPM | 1 |
| Total Plate Count =< | 1000cfu/g |
| Yeast & Mold =< | 100cfu/g |
| E. Coli | Negative |
| Salmonella | Negative |
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