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- By CategoryMixed GasesGas Comp Amount220.9000000Gas Comp Amount193.8450000 99.9980000 99.9285000 79.1000000 99.9730000 20.0000000 98.9320000 66.0000000 99.9825000 99.9514000 6.2500000 83.8950000 83.0000000 93.2000000 88.0000000Gas Comp 1PPM NITROGEN DIOXIDE ARGON OXYGEN NITROGEN