Description COMPONENTS CONCENTRATION NITROGEN 0.20% CARBON DIOXIDE 10.40% METHANE BALANCE ETHANE 10.00% PROPANE 4.00% ISO-BUTANE 0.90% N-BUTANE 0.80% NEOPENTANE - - ISO-PENTANE 0.40% N-PENTANE 0.30% HEXANE 0.30% HEPTANE - -