ITEM

SPECIFICATION

RESULT

Intrinsic Viscosity (IV, dL/g)

0.810 ± 0.015

0.809

Acetaldehyde Content (AA, μg/g)

≤1.0

0.8

Color (b value)

≤1.0

-1.7

(L value)

≥80

83

Diethylene Glycol Content (DEG, %)

1.3 ± 0.2

1.2

Carboxyl End Group Content (-COOH, mmol/kg)

≤35

21

Melting Point (DSC, °C)

249 ± 2

251

Powder (mg/kg)

≤100

3

Off-color Particles (particles/500g)

None

None

Moisture (%)

≤0.2

0.04

Density (g/cm³)

1.40 ± 0.01

1.40

Ash (%)

≤0.08

0.03

Crystallinity (%)

For reference

57.1