Sulfate-ka birta ah
Tilmaamaha
| Shay | Heerka Caadiga ah |
| Fe2+ | ≥17.6% |
| Walax aan milmi karin | ≤0.1% |
| Hg | ≤0.00001 % |
| Cr | ≤0.0005 % |
| As | ≤0.002 % |
| Pb | ≤0.002 % |
Halkan ku qor fariintaada oo noo soo dir
Tilmaamaha
| Shay | Heerka Caadiga ah |
| Fe2+ | ≥17.6% |
| Walax aan milmi karin | ≤0.1% |
| Hg | ≤0.00001 % |
| Cr | ≤0.0005 % |
| As | ≤0.002 % |
| Pb | ≤0.002 % |