Gum rosin


Parameter.......................................................................................Grade
Standard:GB8145-87.....................................................................WW
Appearance.....................................................................................Transparent
Color.................................................................................................Pale Yellow
Softening Point(Ball And Ring Method Celsius)≥.................. 76.0
Acid Number(mg KOH/g)≥...........................................................166.0
Unsaponifiable Matter%≤..............................................................5
Ethabol Insolubles%≤....................................................................0.03
Ash Content%≤................................................................................0.02