Description
| Elements | Composition in % |
| Antimony (sb) | 0.001 (Max) |
| Arsenic (As) | 0.001 (Max) |
| Tin (Sn) | 0.001 (Max) |
| Copper (Cu) | 0.001 (Max) |
| Bismuth (Bi) | 0.020 (Max) |
| Iron (Fe) | 0.001 (Max) |
| Nickel (Ni) | 0.001 (Max) |
| Silver (Ag) | 0.005 (Max) |
| Zinc (Zn) | 0.001 (Max) |
| Calcium (Ca) | 0.0005 (Max) |
| Sulphur (S) | 0.0005 (Max) |
| Aluminum (Al) | 0.0005 (Max) |
| Lead (Pb) | 99.970 (Min) |





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