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| Test Items | Specification | Result |
|---|---|---|
| Description | A white crystalline powder | Complies |
| Identification IR | Similar with the Reference Spectrum | Complies |
| Optical Rotation | -15.5° to -17.5° | -17.2° |
| Clarity and color of solution | Clear and colourless | Complies |
| Heavy Metals | ≤ 10ppm | Complies |
| Arsenic | ≤ 1ppm | Complies |
| Sulphates | ≤ 300ppm | Complies |
| Ammonium | ≤ 200ppm | Complies |
| Iron | ≤ 10ppm | Complies |
| Cadmium | ≤ 1ppm | Complies |
| Lead | ≤ 3ppm | Complies |
| Mercury | ≤ 1ppm | Complies |
| Related Substances (Total) | ≤ 2.0% | 0.7% |
| Related Substances (GSSG) | ≤ 1.5% | 0.3% |
| Loss on Drying | ≤ 0.5% | 0.3% |
| Residue on Ignition | ≤ 0.1% | 0.04% |
| Assay | 98.0% to 101.0% | 98.4% |
| Microbiology | ||
| Total plate count | 1000cfu/g | Complies |
| Yeast and mold count | 100cfu/g | Complies |
| Total coli forms | 100cfu/g | Complies |
| E. coli | Absent/10g | Complies |
| S. aureus | Absent/10g | Complies |
| Salmonella | Absent/10g | Complies |