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- By CategoryMixed GasesGas Comp Amount220.9000000Gas Comp Amount199.9865000 79.0000000 98.8900000 79.6000000 99.9937000 99.9659000 79.2000000 99.9890000 99.9932000 99.9965900 88.5000000 79.1000000Gas Comp 1PPM NITROGEN DIOXIDE OXYGEN NITROGEN ARGON