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- By CategoryMixed GasesGas Comp 4OXYGENGas Comp Amount199.9972000 64.6000000 81.6400000 97.0000000 1.7000000 99.9010000 80.2000000 99.9880000 99.9700000 30.0000000Gas Comp 1PROPANE FLUORINE NITROGEN PPM R134A TETRAFLUOROETHANE N BUTANE