Description COMPONENTS CONCENTRATION NITROGEN 1.00% CARBON DIOXIDE 7.00% METHANE BALANCE ETHANE 6.50% PROPANE 4.60% ISO-BUTANE 0.90% N-BUTANE 0.90% NEOPENTANE - - ISO-PENTANE 0.50% N-PENTANE 0.50% HEXANE 0.30% HEPTANE - -