$160.00
This kit is designed to determine the relative effectiveness of various commercial sunscreen lotions under laboratory conditions.
(Kemtec) Experiment consists of allowing light energy to act upon a photosensitive chemical agent, with the blocking of the light energy dependent upon the sunscreen employed. After exposure, the amount of chemical conversion is measured and plotted as a function of the “Sun Protection Factor”, SPF. Contains materials for 24 students working in groups of four.
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