Product description: Appearance: Colorless transparent liquid Color (Pt-Co) Max. : ≤30# Ester Content(%) Min.: ≥99.0% Acidity (%)Max. (asacetic acid):≤0.03 Water (wt %)Max.:≤0.01 Refractive Index(25°C/D):1.410-1.440 Relative Density(25/25°C:1.102-1.120 Ash(wt,%)Max.:≤0.02 Heavy Metal(as Pb)ppm Max.:≤10ppm Arsenic (As)ppm Max: ≤3ppm