|
Content |
99.5% Min |
|
Insoluble matter in water |
0.005% Max |
|
Residues on ignition (As sulphate) |
0.01% Max |
|
Sulphate (As SO4) |
0.01% Max |
|
Heavy metal (Pb) |
10ppm Max |
|
Iron (Fe) |
5ppm Max |
|
Chloride (Cl) |
0.001% Max |


