| |
|
|
|
| GRADE |
FW-1 |
FW-2 |
FWP-1 |

|
Pb |
|
0.001 |
0.001 |
| Bi |
|
0.001 |
0.001 |
| Sn |
|
0.001 |
0.001 |
| Sb |
|
0.001 |
0.001 |
| As |
|
0.002 |
0.002 |
| Fe |
0.005 |
0.030 |
0.030 |
| Ni |
0.003 |
0.005 |
0.005 |
| Cu |
0.001 |
... |
... |
| Al |
0.002 |
0.005 |
0.005 |
| Si |
0.003 |
0.010 |
0.010 |
| Ca |
0.003 |
0.005 |
0.005 |
| Mg |
0.002 |
0.005 |
0.005 |
| Mo |
0.010 |
0.20 |
0.20 |
| P |
0.001 |
0.005 |
0.005 |
| C |
0.005 |
0.010 |
0.010 |
| O |
0.20 |
0.25 |
0.20S |
|
|
|
|