Itemunit"99% Iso-pentane""95% Iso-pentane"test method Appearance-clear/colorlessclear/colorlessvisual N-pentane wt%balancebalancegas chro Iso-pentanewt%9995gas chro Hexane and heavier wt0.10.1gas chro Butane and lighter wt0.10.1gas chro Total olefin ppm2020gas chro Aromatic contentppm11gas chro Benzene ppm11gas chro Nonvolatilemg/100ml0.51astm d1353 Total sulfurppm11astm d5453 Doctor test -negativenegativeastm d4952 Bromine index mgbr/100g11astm d2710 Saybolt color-+30+30astm d156 Total nitrogen ppm11astm d6069 Carbonyl ppm11astm e411 Copper corrosion-1a1aastmd 130 Residue acidity-neutralneutralastmd 1093 Oxygen ppm11gb/t3396 Carbon monoxide ppm55gb/t3394 Carbon dioxide ppm1010gb/t3394 Methanolppm1010sh/t1547 Oh groupppm1010sh/t1547 Water ppm1020karl-fisher Density at 15°c -0.60-0.650.60-0.65astm d4052 Remark: pls contact sales manager for more specs Packaging :iso-tank