| Kwaliteit | Samenstelling | |||
| Onzuiverheden (%) | ||||
| SI | FE | AI | CA | |
| ≥ | ≤ | |||
| 1101 | 99.79 | 0.1 | 0.1 | 0.01 |
| 1501 | 99.69 | 0.15 | 0.15 | 0.01 |
| 2202 | 99.58 | 0.2 | 0.2 | 0.02 |
| 2502 | 99.48 | 0.25 | 0.25 | 0.02 |
| 3303 | 99.37 | 0.3 | 0.3 | 0.03 |
| 411 | 99.4 | 0.4 | 0.1 | 0.1 |
| 421 | 99.3 | 0.4 | 0.2 | 0.1 |
| 441 | 99.1 | 0.4 | 0.4 | 0.1 |
| 553 | 98.7 | 0.5 | 0.5 | 0.3 |
| 98 | 98 | 1 | 0.5 | 0.5 |
| 97 | 97 | 1.7 | 0.7 | 0.6 |
| Siliciummetaalpoeder | ||||||
| Chemische industrie | Samenstelling% | Specificatie | ||||
| SI | FE | Al | CA | Grootte in mesh | Grootte in uum | |
| ≥ | ≤ | |||||
| 99.6 | 0.2 | 0.15 | 0.05 | 30 mesh | 590-124 um | |
| 99.2 | 0.4 | 0.2 | 0.1 | 40 mesh | 590-124 um | |
| 99 | 0.4 | 0.4 | 0.2 | 40 mesh | 420-92um | |
| 98.5 | 0.5 | 0.5 | 0.3 | 40 mesh | 420-124 um | |
| 98 | 0.6 | 0.5 | 0.3 | 40 mesh | 420-36um | |
| Metallurgisch | 99.6 | 0.2 | 0.15 | 0.05 | -150 mesh | 100 um |
| 99.2 | 0.4 | 0.2 | 0.1 | -200mesh | 74 um | |
| 99 | 0.4 | 0.4 | 0.2 | -325 mesh | 44 um | |
| 98.5 | 0.5 | 0.5 | 0.3 | -400 mesh | 38 um | |
| 98 | 0.6 | 0.5 | 0.3 | -600mesh | 25 um | |
| Laag silicium | 95-97 | onzuiverheidsgehalte ≤4.0% | 40 mesh | 420-104 um | ||
| 90-95 | -200mesh | 74 um | ||||