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The electric welding arc is a very powerful source of light, including visible, ultraviolet, and infrared. Welding protective equipment and clothing should be worn during all welding operations. During all oxyacetylene welding and cutting processes, operators must use safety goggles to protect the eyes from heat, glare, and flying fragments of hot metals. During all electric welding processes, operators must use safety goggles and a hand shield or helmet equipped with a suitable filter glass to protect against the intense ultraviolet and infrared rays. When others are in the vicinity of the electric welding processes, the area must be screened so the arc cannot be seen either directly or by reflection from glass or metal.
Colored glass must be manufactured in accordance with specifications detailed in the “National Safety Code for the Protection of Hands and Eyes of Industrial Workers”, issued by the National Bureau of Standards, Washington DC, and OSHA Standards, Subpart Q, “Welding, Cutting, and Brazing”, paragraph 1910.252, and American National Standards Institute Standard (ANSI) Z87.1-1968, “American National Standard Practice for Occupational and Educational Eye and Face Protection”.
During all electric welding processes, operators must wear safety goggles (fig. 2-3) to protect their eyes from weld spatter which occasionally gets inside the helmet. These clear goggles also protect the eyes from slag particles when chipping and hot sparks when grinding. Contact lenses should not be worn when welding or working around welders. Tinted safety glasses with side shields are recommended, especially when welders are chipping or grinding. Those working around welders should also wear tinted safety glasses with side shields.