Composizione | Unità | Tipico | Limite |
|---|---|---|---|
| P2O5 | % | 54 | 52 MIN |
| CaO | % | 0.2 | 0.4 MAX |
| MgO | % | 0.3 | 0.5 MAX |
| F | % | 0.15 | 0.19 MAX |
| SiO2 | Ppm | 100 | 170 MAX |
| Al2O3 | % | 0.3 | 0.6 MAX |
| Fe2O3 | % | 0.1 | 0.25 MAX |
| SO4 | % | 0.2 | 0.2 MAX |
| Zn | Ppm | 650 | 800 MAX |
| Cd | Ppm | 4 | 6 MAX |
| Ni | Ppm | 80 | 110 MAX |
| Cr | Ppm | 100 | 120 MAX |
| Mn | Ppm | 20 | 30 MAX |
| Pb | Ppm | 1 | 2 MAX |
| V | Ppm | 250 | 350 MAX |
| As | Ppm | 0.6 | 1 MAX |
| Mo | Ppm | 30 | 50 MAX |
| Cu | Ppm | 3 | 5 MAX |
| Cl | Ppm | 100 | 150 MAX |
| Na2O | % | 0.4 | 0.6 MAX |
| T.O.C. | Ppm | 50 | 100 MAX |
| SOLIDI | % | 0.02 | 0.2 MAX |