Sulfat iarainn
Sònrachaidhean
| Nì | Coitcheann |
| Fe2+ | ≥17.6% |
| Stuth neo-sholabailte | ≤0.1% |
| Hg | ≤0.00001% |
| Cr | ≤0.0005% |
| As | ≤0.002% |
| Pb | ≤0.002% |
Sgrìobh do theachdaireachd an seo agus cuir thugainn i
Sònrachaidhean
| Nì | Coitcheann |
| Fe2+ | ≥17.6% |
| Stuth neo-sholabailte | ≤0.1% |
| Hg | ≤0.00001% |
| Cr | ≤0.0005% |
| As | ≤0.002% |
| Pb | ≤0.002% |