Ferrous sulfate
Zofotokozera
| Kanthu | Standard |
| Fe2+ | ≥17.6% |
| Zinthu zosasungunuka | ≤0.1 % |
| Hg | ≤0.00001 % |
| Cr | ≤0.0005 % |
| As | ≤0.002 % |
| Pb | ≤0.002 % |
Lembani uthenga wanu apa ndikutumiza kwa ife
Zofotokozera
| Kanthu | Standard |
| Fe2+ | ≥17.6% |
| Zinthu zosasungunuka | ≤0.1 % |
| Hg | ≤0.00001 % |
| Cr | ≤0.0005 % |
| As | ≤0.002 % |
| Pb | ≤0.002 % |