Specification Property             Specification        Analytical Method

dibutyl phthalate, Min by wt.         99.0%           gaschromatography

acidity,     mg/g                             0.15                     GB/T1668

Flash point,        ℃
                                                        160                       GB/T6489

Relative density(20℃) 
                                                    1.044-1.048              GB/T4472

loss on heating    Max by wt.         0.2%                 GB/T11133
color(APHA)               max             25                     the method of Pt-Co