Specification:
| S.N. | Elements | Symbol | Specification in % |
|---|---|---|---|
| 1. | Tin | Sn | 0.0010 Max |
| 2. | Antimony | Sb | 0.0030 Max |
| 3. | Bismuth | Bi | 0.0150 Max |
| 4. | Copper | Cu | 0.0020 Max |
| 5. | Arsenic | As | 0.0020 Max |
| 6. | Silver | Ag | 0.0020 Max |
| 7. | Cadmium | Cd | 0.0010 Max |
| 8. | Zinc | Zn | 0.0020 Max |
| 9. | Cobalt | Co | 0.0002 Max |
| 10. | Tellurium | Te | 0.0002 Max |
| 11. | Iron | Fe | 0.0020 Max |
| 12. | Nickle | Ni | 0.0002 % Max. |
| 13. | Lead | Pb | 99.99 % Min. |