UV sterilising tubes in biological safety cabinets. Small UV sources in spectrophotometers, microscopes and alike. UV accompanying other processes, such as plasmas, arcs, welding, electrical discharges etc. Ultraviolet light is a hazard to the eyes and skin. Erythema is the main observed effect of overexposure to the skin, but chronic exposure accelerates skin aging and increases the risk of skin cancer.
Sunlight is the major source of exposure.
Affix an appropriate warning sign to the Unit. The principal wavelength of the source. The exposure limit of the source. The recommended minimum personal protective equipment required. Document procedures for its use, to be displayed near the equipment.