Experience has shown that lighter filters may be used when the arc is hidden by the workpiece. ** These values apply where the actual arc is clearly seen. In oxyfuel gas welding or cutting where the torch produces a high yellow light, it is desirable to use a filter lens that absorbs the yellow or sodium line in the visible light of the (spectrum) operation. 5), soft vinyl frame fits easily over corrective glasses, hooded vents prevent fogging and offers excellent ventilation, adjustable elastic headband. Filter lens frame raises easily for on-the-job versatility, furnished with filter lens (Shade no. Then go to a lighter shade which gives sufficient view of the weld zone without going below the minimum. Firepower Blue and Black Welding Safety Glasses. * As a rule of thumb, start with a shade that is too dark to see the weld zone. Gas metal arc welding and flux cored arc weldingįilter Lenses for Protection Against Radiant Energy Filter Lenses for Protection Against Radiant Energy The following is a listing of appropriate shade numbers for various operations. The employer shall ensure that each affected employee uses equipment with filter lenses that have a shade number appropriate for the work being performed for protection from injurious light radiation.
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