Arc welding dark glass is used to protect eye from which rays
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sunlight.......... .............dust.....
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Electromagnetic energy given off by an arc or flame
can injure workers’ eyes and is commonly referred
to as radiant energy or light radiation. For protection
from radiant energy, workers must use personal
protective equipment, such as safety glasses,
goggles, welding helmets, or welding face shields.
This equipment must have filter lenses with a shade
number that provides the appropriate level of protection.
A shade number indicates the intensity of
light radiation that is allowed to pass through a filter
lens to one’s eyes. Therefore, the higher the shade
number, the darker the filter and the less light
radiation that will pass through the lens.
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