| Element | (ppm) |
| Ru (% min.) | 99.94-99.98% |
Au |
<1 |
| Ag | 1 - 2 |
| Pd | <1 |
| Ir | <1 |
| Rh | <1 |
| Pt | 6 - 80 |
| Os | 2 - 6 |
| Al | <1 - 8 |
| As | <1 |
| Bi | <1 |
| Ca | 6 - 13 |
| Co | <1 |
| Cr | 1 - 2 |
| Cu | <1 |
| Fe | 34 - 92 |
| Mg | <1 |
| Mn | <1 - 1 |
| Mo | <1 |
| Na | 11 - 39 |
| Ni | 2 - 3 |
| Pb | <1 |
| Sb | <1 |
| Si | 26 - 446 |
| Sn | <1 - 2 |
| Te | <1 |
| Ti | <1 - 1 |
| Zn | 1 |
| LOI | 0.07% |