(e) The employer must ensure that each affected employee uses equipment with filter lenses that have a number appropriate for the work being performed for protection from injurious light radiation. Table 1 - Filter Lenses for Protection Against Radiant Energy Electrode Size Arc Current Minimum* Operations 1/32 in. (amps) Protective Shade Shielded metal arc welding Less than 3 Less than 60 7 3-5 60-160 8 5-8 160-250 10 More than 8 250-550 11 Gas arc welding and flux cored arc Less than 60 7 welding 60-160 10 160-250 10 250-500 10 Gas Tungsten arc welding Less than 50 8 50-150 8 150-500 10 Air carbon Less than 500 10 Arc cutting (Heavy) 500-1000 11 Plasma arc welding Less than 20 6 20-100 8 100-400 10 400-800 11 Plasma arc cutting (Light) ** Less than 300 8 (Medium) ** 300-400 9 (Heavy) ** 400-800 10 Torch brazing 3 Torch soldering 2 Carbon arc welding 14
(e) The employer must ensure that each affected employee uses equipment with filter lenses that have a number appropriate for the work being performed for protection from injurious light radiation. Table 1 - Filter Lenses for Protection Against Radiant Energy Operations Electrode Size 1/32 in. Arc Current (amps) Minimum* Protective Shade Shielded metal arc welding Less than 3 3-5 5-8 More than 8 Less than 60 60-160 160-250 250-550 7 8 10 11 Gas arc welding and flux cored arc welding Less than 60 60-160 160-250 250-500 7 10 10 10 Gas Tungsten arc welding Less than 50 50-150 150-500 8 8 10 Air carbon Arc cutting (Heavy) Less than 500 500-1000 10 11 Plasma arc welding Less than 20 20-100 100-400 400-800 6 8 10 11 Plasma arc cutting (Light) ** (Medium) ** (Heavy) ** Less than 300 300-400 400-800 8 9 10 Torch brazing Torch soldering Carbon arc welding 3 2 14
div3E.docx