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- By CategoryMixed GasesGas Comp Amount220.9000000Gas Comp Amount179.6800000 95.4725000 99.9670000 99.9994000 99.9000000 99.9775000 99.6710000 99.9917500 99.9100000 99.9499500 99.9685000 79.1000000Gas Comp 1PPM NITROGEN DIOXIDE OXYGEN NITROGEN ARGON