Specifications of Methyl Ethyl Ketone (MEK), MEK content Mass % : 99.7% min Water content Mass % :0.1% max. Initial boiling point Deg C :79.2 Dry point Deg C :80.2 Density at 20 Deg C Kg/l :0.804 - 0.805 Acidity (as CH3COOH) Mg/kg :17 Residue on evaporation Mg/kg :2 Permanganate test at 25 Deg C : Minutes Greater than 180 Flash point (closed cup) at 101.3 Pa Deg C: - 6 Colour Hazen : Less than 10 Appearance : Visual Clear & free of sediments. Per tonnage (metallic steel drum or ISO tanks).