Engineering Control of Welding Fumes, Final Report.
NIOSH, 1973 Jul :1-123
An experimental investigation was conducted to define satisfactory criteria for the control of welding and cutting fumes using local exhaust ventilation methods. The criteria for effectiveness of a system was its ability to reduce breathing zone metallic fume concentrations below the mixture threshold limit value. The following three process-base plate combinations were selected for local exhaust ventilation control studies: shielded manual metal arc welding on carbon steel, shielded manual metal arc welding on stainless steel, and gas shielded arc welding on carbon steel. A crossdraft ventilation table was designed and fabricated for use with the gas shielded process. In addition, a low volume-high velocity fume extracting welding gun was evaluated in conjunction with this process. A free-standing rectangular hood was applied to the covered electrode processes.
Fumes; Ventilation; Welding; Environmental-engineering; Safety-engineering; Exhaust-systems; Fluoride-poisoning;
NTIS Accession No.
National Institute for Occupational Safety and Health
Southwest Research Institute, San Antonio, Texas