Item

SG3

SG5

SG7

SG8

Viscosity, ml/g

(K value)

Degree of polymerization

135~127

(72~71)

1350~1250

118~107

(68~66)

1100~1000

95~87

(62~60)

850~750

86~73

(59~55)

750~650

Number of impurity particle≤

30

30

40

40

Volatiles content %,≤

0.40

0.40

0.40

0.40

Appearing density g/ml ≥

0.42

0.45

0.45

0.45

residue

after sieve

0.25mm ≤

2.0

2.0

2.0

2.0

0.063mm ≥

90

90

90

90

Number of grain/400cm2≤

40

40

50

50

Plasticizer absorbency value of 100g resin g≥

25

17

-

-

Whiteness %,≥

75

75

70

70

Water extractant solution conductivity, [us/(cm.g)]≤

5

-

-

-

Residual chloride ethylene content mg/kg≤

10

10

10

10