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- By CategoryMixed GasesGas Comp Amount36.0000000Gas Comp Amount127.5000000 89.0000000 81.8470000 99.9967000 78.7500000 99.9875000 92.0000000 83.5420000 99.9400000 99.9987500 99.9500000 99.9996000 99.9948400 375.0000000 99.9070000Gas Comp 1PPM CARBON MONOXIDE NITROGEN METHANE