| Item |
Specification |
Results |
| Appearance |
White or slight-yellow crystalline powder |
Slight-yellow crystalline powder |
| Assay (As Na2S2O5) |
> = 98.0% |
98.98% |
| Iron (As Fe) Clarity |
< = 0.005%
Slight - turbidity |
0.0028%
Slight - turbidity |
| Heavy metals (As Pb) |
< = 0.001% |
< 0.001% |
| Arsenic |
< = 0.0002% |
< 0.0002% |
| PH |
4.91 |
| Conclusion |
Conform |
|