Lead: Secondary Lead Smelter eTool
Local Exhaust Ventilation Diagrams » Controls for Lead Tapping and Molding
Volumtric flow rate:
Mold filling hood (T1) - 1650 cfm
Launder hood (T2) - 2460 cfm
Metal tapping hood (T3) - 3660 cfm
Proceedings of the Symposium on Occupational Health Hazard Control Technology in the Foundry and Secondary Non-Ferrous Smelting Industries, U.S. Department of Health and Human Services, NIOSH Publication No. 81-114 (1981).