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- By CategoryMixed GasesGas Comp 4PPM CARBON MONOXIDEGas Comp Amount178.9000000 99.9091000 99.9320000 97.8000000 82.5800000 99.9974000 99.7100000 99.8647000 99.9945000 99.9972500 99.8650000 99.8120000 99.9670000 99.9909000 99.9985000 99.7030000 99.9999000 83.5400000 89.4900000 99.4000000 25.0000000 99.9700000Gas Comp 1NITROGEN NITROGEN PPM CARBON DIOXIDE NITROGEN DIOXIDE PPM CARBON MONOXIDE