Complaint
| Items | Specification | Results |
| Description | A white crystalline powder;Odorless | Pass |
| Identification: | Conform | Conform |
| Clarity and color of solution: | Clear and colorless | Pass test |
| Chloride: | 0.011% max | <0.01% |
| Sulphate: | 0.010% max | <0.01% |
| Ammonium: | 0.02% max | <0.015% |
| Heavy metals: | 10ppm max | <8ppm |
| Iron | 10ppm max | <10ppm |
| Loss on drying(105ºC, 2 hours) | 0.2% max | 0.08% |
| Residue on ignition: | 0.1% max | 0.06% |
| Related substances | 0.2% max | <0.2% |
| Assay(anhydrous): | 99% -101.0 | 99.5% |
| Total plate count: | NMT 1000/g | 50/g |
| Mold: | NMT 100/g | <10/g |
| Yeast: | NMT 100/g | <10/g |
| E.coli | Negative/10g | Not found |
| Salmonella: | Negative/25g | Not found |
