Properties: Made from refined distilled gum rosin and pharmaceutical grade glycerol in full compliance with GB10287-88 and FCC standards. High transparency, light yellow gloss. The specification is as follows Items: Target Softening point(Ring & Ball C): 82-90 Acid value(KOH mg/g): 3. 0-9. 0 Color (Pt/Co): 8max Heavy Metals (as Pb): 20ppm Max As: 2 ppm Max Ash: 0. 1% max Density(25C): 1. 080-1. 090