| Appearance | White to off-white powder |
| Assay | 98%min |
| Water | 2.0% max. |
| Clarity of water solution |
The water solution should be clear |
| pH Value(1% in water solution) |
6.5~7.5 |
| Heavy Metals(as Pb) | 10 ppm max. |
| Chloride |
0.05%max. |
| Total Bacterial | 1,000 cfu/g max. |
| Molds & Yeasts | 100 cfu/g max. |
| E.Coli | Negative/g |
| Staphylococcus Aureus | Negative/g |
| P.Aeruginosa | Negative/g |
