Item:                           Specification

Acid number (mg KOH/gm): 675±2

4-CBA (ppm w/w ):                max 25

p-Toluic acid (ppm w/w):       max 150

Water (% w/w):                       max 0.2

b*(colour):                               max 1.2

APHA colour(2N KOH):         max 10

Ash(ppm w/w):                        max 9

Metals (ppm w/w):    None greater than 1 and in total max 4

As the main raw material of polyester products including fibre, bottle, film, paint, coating and PBT engineering plastics etc.