Advarsel ! Ultraviolet lys: Sikkerhedsanvisning
Ultraviolet lys: UV lys udsender meget skadelig ståling !
Direkte kontakt med UV lys er meget farlig for øjne og hud.
De UV lamper der leveres fra Water ApS, er meget energirige (180nm / 400nm)
Må kun andvendes efter Water ApS anvisning
Se ALDRIG på tændte UV lamper fra Water ApS de er MEGET farlige for øjne og hud !
Warning: Ultraviolet Light Safety Guidelines
Ultraviolet radiation is divided into three regions: UV-A: 315-400 nanometers (nm), UV- B: 280-315 nm, and UV-C: 100-280 nm.
UV can be associated with adverse health effects depending on duration of exposure and the wavelength.
The adverse health effects that may occur are erythema (sunburn), photokeratitis (a feeling of sand in the eyes), skin cancer, melanoma, cataracts, and retinal burns. Band Wavelength Primary Visual Hazard Other Visual Hazards Other Hazards
UV-A UV-400nm cataracts of lens, skin cancer, retinal burns
UV-B 280-315nm corneal injuries cataracts of lens, photokeratitis erythema, skin cancer
UV-C 100-280nm corneal injuries photokeratitis erythema, skin cancer
There is no Occupational Safety and Health Administration (OSHA) standard for exposure to ultraviolet light, but the National Institute for Occupational Safety and Health (NIOSH) recommends that the time of exposure to an intensity of 100 microwatts per square centimeter at wavelength 254 nanometers not exceed 1 minute.
When averaged over an eight-hour work day, this value is 0.2 microwatts per square centimeter. The American Conference of Governmental Industrial Hygienists (ACGIH) has issued Threshold Limit Values (TLVs) for occupational exposure to UV. These TLVs refer to ultraviolet radiation in the spectral region between 180 and 400 nm and represent conditions that nearly all workers may be repeatedly exposed without adverse health effects. The TLVs for occupational exposure to UV incident upon skin or eye are based on the irradiance and time of exposure. Broad band sources are weighted to determine the effective irradiance compared with the spectral effectiveness curve at 270 nm. Refer to current “Threshold Limit Values for Chemical Substances and Physical Agents”
published by ACGIH for values .
Personnel that may be exposed to harmful amounts and wavelengths of UV must take adequate steps to shield themselves and in some cases limit the duration of exposure. Environmental Safety can provide assistance in measuring UV emissions and evaluating personal protective equipment for its UV protection. It is also important to note that ozone is produced in air by sources emitting UV at wavelengths below 250 nm. Some UV devices may produce ozone in appreciable levels and consideration should be given to ozone levels.