GB / T8145-2003：
Correspond to the Standard Glass Color Piece of Rosin
Softening Point（R&B），℃ min
Acid Value，mgKOH/g min
Alcohol insoluble Substance，% max
Unsaponifiable matter，% max
1. Properties and uses : It is a kind of natural resin , mainly composed of various resin acids . It can be dissolved easily in many organic solvents , and has special chemical activity . So it is an important raw material for the manufacture of paper , coatings , inks , rubbers , soaps , electronic industrial products , food grade ester gum , and rosin ester resins etc .
2. Packing : Drum —— Net weight 225kgs each drum .
3. The standards of GB / T8145-2003 is national standard of People's Republic of China . If there are changes , the last standard will be executed and assured by contract .