Quality Product

Qualify Product

Intrinsic Viscosity

0.800±0.015 dl/g

0.800±0.020 dl/g

0.804

Acetaldehyde

<1 ug/g

0.5

Carboxyl

≤35 mmol/kg

23

L Value

≥82

≥80

89.4

B Value

<0

≤2.0

-2.2

Melting Point

249±2.0 ℃

248.4

Crystallinity

≥45 %

55

DEG Content

1.3±0.2 %(wt)

1.3±0.3 %(wt)

1.25

Moisture

≤0.2 %(wt)

0.06

Ash Content

≤0.05 %(wt)

0.02

100 particles weight

1.45-1.65g

1.60

Density

1.395±0.01 g/cm3

1.396

Discolor particles

0 (piece/500g)

≤1 (piece/500g)

0

Powder

≤50 mg/kg

9

Sense:

White granules, no odor, smell or foreign matter