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Old 11-06-2006, 08:14 PM
ecolik12 ecolik12 is offline
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Exclamation Effectiveness of sunscreens agaisnt ultra violet light experiment

What results have people got when they finished this experiment. Also how long should I expose the bacteria to the UV ray light and how long should it take to get results? What is the wattage and distance of the UV ray lamp?
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