Type

SG3

SG4

SG5

SG6

SG7

SG8

K value

72-71

70-69

68-66

65-63

62-60

59-55

Viscosity, ml/g

135-127

126-119

118-107

106-96

95-87

86-73

Average polymerization

1350-1250

1250-1150

1100-1000

950-850

950-850

750-650

Number of impurity particle max

30

30

30

30

40

40

Volatiles content % max

0.4

0.4

0.4

0.4

0.4

0.4

Appearing density g/ml min

0.42

0.42

0.42

0.45

0.45

0.45

Residual after sieve 0.25mm mesh max

2

2

2

2

2

2

0.063mm min

90

90

90

90

90

90

Number of grain/10000px2 max

40

40

40

40

40

40

Plasticizer absorbency value of 100g resin

25

22

19

16

14

14

Whiteness % min

74

74

74

74

70

70

Residual chlorethylenecontent mg/kg max

5

5

5

5

5

5

Ethylidene chloride mg/kg max

150

150

150

150

150

150