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- By CategoryMixed GasesGas Comp Amount220.9000000Gas Comp Amount199.9000000 99.9932000 69.6000000 99.9999500 99.9998000 99.9799000 79.1000000 99.9595000 81.9973000 99.9091000 99.9992500 80.4875000 93.8140000Gas Comp 1NITROGEN PPM NITROGEN DIOXIDE OXYGEN ARGON