Parameter

Index

Appearance

Natural color granules, no admixture

Large granules, g/kg            ≤

5

Small granules, g/kg             ≤

5

Melt flow rate, g/10min

18-24

Ultimate tensile strength, MPa  ≥

43

Flexural strength, MPa   ≥

71

Elastic modulus, MPa  ≥

2300

Charpy impact test, KJ/m2        ≥

16

Vicat softening temperature, ℃≥

92

Rockwell test,  (R scale)   ≥

107

Yellowness index ≤

30

Whiteness index ≥

58