Ferrous sulfate
Litlhaloso
| Ntho | Standard |
| Fe2+ | ≥17.6 % |
| Lintho tse sa keneng | ≤0.1 % |
| Hg | ≤0.00001 % |
| Cr | ≤0.0005 % |
| As | ≤0.002 % |
| Pb | ≤0.002 % |
Ngola molaetsa wa hao mona mme o re romele wona
Litlhaloso
| Ntho | Standard |
| Fe2+ | ≥17.6 % |
| Lintho tse sa keneng | ≤0.1 % |
| Hg | ≤0.00001 % |
| Cr | ≤0.0005 % |
| As | ≤0.002 % |
| Pb | ≤0.002 % |