Ch 0.08% Cis 1,3 Pentadiene 0.12% Trans 1,3 Pentadiene 0.3% Propylene 0.4% Propane 0.5% 1 Pentene 0.5% Methyl Acetylene 0.5% Propadiene 1% Cis 2 Butene 5% Isobutane 5.1% N Butane Balance 1,3 Butadiene Size Lp 2.5 Alum Certified Hydrocarbon CGA 510/165DT Chevron Phillips BU-908 Tag#: AT-504004 9 Lb Liq Mix In Mole% Diptube With 200