| Furnace Charge Composition | mg/L Pb | |
| Non-desulfurized lead paste | Desulfurized lead paste | |
| [5]-[5]-[3] | 56.2 | 1.61 |
| [7.4]-[7.4]-[5.3] | 52.8 | Not detected |
| [8]-[8]-[5] | 53.5 | Not detected |