UV Safety Spectacles
EMS Catalog #72420
Eye protection must be considered when working with shortwave and mid-range and even longtime exposure to longwave UV light sources. Damage to the eyes occurs from exposure to the shorter wavelengths of ultraviolet, known as UV-B (280-315nm) and UV-C (280nm and below). Damage occurs here in the form of photokeratitis (inflammation of the cornea), conjunctivitis, inflammation of the conjunctiva and retinal lesions. The first two being colloquially known as "welder's flash" and "snow blindness."
Blak-Ray eye and face protection eliminates the risk. Especially formulated plastic is used in its manufacture. Transmission at 254, 302 and 365nm UV is virtually zero. The "blue-haze" normally associated with the shorter wavelength is also eliminated.
UV Safety spectacles are manufactured to comply with ANSI -Z87 1968 and 1974 specifications for safety eye wear. OSHA Safety and Health Standards for General Industry and NIOSH Document HSM-73-11009 criteria for a recommended standard, occupational exposure to UV radiation.