Erinmi imi-ọjọ
Awọn pato
| Nkan | Standard |
| Fe2+ | 17.6% |
| Ohun elo ti a ko le yanju | ≤0.1% |
| Hg | ≤0.00001% |
| Cr | ≤0.0005% |
| As | ≤0.002% |
| Pb | ≤0.002% |
Kọ ifiranṣẹ rẹ nibi ki o si fi si wa
Awọn pato
| Nkan | Standard |
| Fe2+ | 17.6% |
| Ohun elo ti a ko le yanju | ≤0.1% |
| Hg | ≤0.00001% |
| Cr | ≤0.0005% |
| As | ≤0.002% |
| Pb | ≤0.002% |