EPA 608 study material including (Core, type 1, 2 and 3) questions with correct answers

a vacum pump should be connected ans as far away from the pump as possible a high capacity vacuum pump and short, large diameter hoses will ans dramatically reduce emissions, pressure drop, and evacuation/dehydration time ozone contains three ans oxygen atoms one chlorine atom can destroy ans 100,000 ozone molecules CFC's do not dissolve in water and do not breakdown into other compounds that dissolve in water ans CFC's cannot be washed out of the lower atmosphere ODP ans ozone depletion potential azeotrope ans where the mixture behaves like a single chemical (new refrigerant) HFC's will not damage the ozone in the stratosphere ans ... in 1992 the united states ordered the stoppage of all CFC production and importation after ans December 31, 1995