Specification: Index name Value Premium grade First grade Salable product Appearance transparent oily liquid Color(APHA)≤ 30 40 120 Ester % 99.5 99.0 99.0 Acidity (benzene dicarbonic acid)g/cm3 0.010 0.015 0.030 Loss on dry (125oC3hr)%≤ 0.2 0.3 0.5 Flash point(open)oC ≥ 195 192 190 Sg D30MD 0.982-0.988 0.982-0.988 0.982-0.988 volume resistivity 0.0m≥ 0.20 0.20 0.30