Appearance: Transparent, no impurity
        Purity 99.7%min.
        Chromaticity (Pt-Co)  5% max
        Density g/cm3 0.784-0.786%
        Water-solubility test: Clear
        Boiling point range (101325 Pa)
        Initial boilling point, Degree 81.5
        End point, degree 83.0
        Water 0.15% max
        Acid(acetic acid) 0.002% max
        Evaporation residue 0.002% max
        Carbonyl group (acetone) 0.05% max
        Sulfur (mg/kg) %1max