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- By CategoryMixed GasesGas Comp Amount220.9000000Gas Comp Amount199.4000000 79.1000000 20.8000000 99.9200000 13.7500000 99.9000000 99.9320000 99.9922000 87.0900000 99.9685000 99.9175000Gas Comp 1PPM NITROGEN DIOXIDE ARGON OXYGEN NITROGEN