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- By CategoryMixed GasesGas Comp Amount199.9800000Gas Comp 2PPB ETHANE SULFUR HEXAFLUORIDE PPM NITROGEN CARBON MONOXIDE 18 N BUTANE PPM DIMETHYL METHYLPHOSPHONATE PPM 1,2,3,4 TETRAFLUORO BENZENE PPM SEC BUTYL MERCAPTAN PPM ACETYLENE
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