| Item | STANDARD |
| Appearance | White Crystalline Powder |
| Odor | Odorless |
| Assay(%) | 99.0 Min |
| Mesh size | 80 Mesh |
| Loss on drying(%) | 12.0 Max |
| Residue on ignition(%) | 0.1 Max |
| Heavy metals(ppm) | 10 Max |
| As(ppm) | 1 Max |
| Total plate count(cfu/g) | 1000 Max |
| Yeast & Mould(cfu/g) | 100 Max |
| E.Coli | Negative |
| Samlmonella | Negative |