pvc second grade

Index

Value

Viscosity, ml/g(or K value)

135-127 (72-71)

95-87

(62-60)

156-144

(77-75)

143-136

(74-73)

118-107 (68-66)

86-73

(59-55)

126-119

(70-69)

106-96

(65-63)

Number of impurity particle ≤

16

30

30

16

40

30

30

30

Volatiles content %, ≤

0.40

g/ml≥ Appearing density

0.42

0.45

0.42

0.42

0.42

0.45

0.45

0.45

Residual after sieve 0.25mm mesh ≤ 0.063mm l≥

2.0

Number of grain/400cm 2 ≤

40

Plasticizer absorbency value of 100g resin

25

14

25

25

19

14

22

16

Whiteness %,≥

74

70

74

74

74

70

74

74

Residual chlore thylene content mg/kg ≤

5

ne chloride mg/kg ≤

150