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![]() Date: 2008-04-23 17:55:48Ozone depletion Heating ventilating and air conditioning Chlorofluorocarbons Chlorodifluoromethane 1-Chloro-1 1-difluoroethane 1 1 1 2-Tetrafluoroethane Ozone Trichlorofluoromethane Refrigeration Chemistry Refrigerants Halomethanes | Add to Reading List |