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- By CategoryMixed GasesGas Comp Amount220.9000000Gas Comp Amount199.8860000 99.9810000 80.6375000 80.4375000 99.9974000 99.6400000 99.9820000 99.5500000 92.7820000 99.9996000 99.9739500 79.1000000 99.9987500 77.9820000Gas Comp 1PPM NITROGEN DIOXIDE NITROGEN OXYGEN ARGON