i. physical properties
a white powder (suspension pvc resin for general purpose)
ii. quality index
|
item
|
model
|
|
ssg0
|
sg1
|
sg2
|
sg3
|
sg4
|
|
grade
|
|
＞
|
superior
|
first class
|
qualified
|
superior
|
first class
|
qualified
|
superior
|
first class
|
qualified
|
superior
|
first class
|
qualified
|
|
viscosity (ml/g)
|
＞
156
|
156-144
|
143-136
|
135-127
|
126-119
|
|
number of impure particles ≤
|
|
16
|
30
|
80
|
16
|
30
|
80
|
16
|
30
|
80
|
16
|
30
|
80
|
|
volatiles (including water), % ≤
|
|
0.30
|
0.40
|
0.50
|
0.30
|
0.40
|
0.50
|
0.30
|
0.40
|
0.50
|
0.30
|
0.40
|
0.50
|
|
apparent density g/ml ≥
|
|
0.45
|
0.42
|
0.40
|
0.45
|
0.42
|
0.40
|
0.45
|
0.42
|
0.40
|
0.47
|
0.45
|
0.42
|
|
sieve residue
|
0.25mm, % ≤
|
|
2.0
|
2.0
|
8.0
|
2.0
|
2.0
|
8.0
|
2.0
|
2.0
|
8.0
|
2.0
|
2.0
|
8.0
|
|
0.063mm, % ≤
|
|
95
|
90
|
85
|
95
|
90
|
85
|
95
|
90
|
85
|
95
|
90
|
85
|
|
number of "fish eyes" / 400cm2, ≤
|
|
20
|
40
|
90
|
20
|
40
|
90
|
20
|
40
|
90
|
20
|
40
|
90
|
|
plasticizer absorption per 100 g of resin ≥
|
|
27
|
25
|
23
|
27
|
25
|
23
|
26
|
25
|
23
|
23
|
22
|
20
|
|
whiteness (160 °c 10 min), % ≥
|
|
78
|
75
|
70
|
78
|
75
|
70
|
78
|
75
|
70
|
78
|
75
|
70
|
|
conductivity of aqueous extract (μs/cm.g) ≤
|
|
5
|
5
|
-
|
5
|
5
|
-
|
5
|
5
|
-
|
-
|
|
residual vinyl chloride content (mg/kg) ≤
|
30
|
5
|
10
|
30
|
5
|
10
|
30
|
5
|
10
|
30
|
5
|
10
|
30
|
|
residual 1.1-dichloroethane content (mg/kg) ≤
|
150 (sanitary grade)
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
item
|
model
|
|
|
sg5
|
sg6
|
sg7
|
sg8
|
sg9
|
|
|
grade
|
|
|
superior
|
first class
|
qualified
|
superior
|
first class
|
qualified
|
superior
|
first class
|
qualified
|
superior
|
first class
|
qualified
|
＞
|
|
|
viscosity (ml/g)
|
118-107
|
106-96
|
95-87
|
86-73
|
＜73
|
|
|
number of impurity particles ≤
|
16
|
30
|
80
|
16
|
30
|
80
|
20
|
40
|
80
|
20
|
40
|
80
|
|
|
|
volatiles (including water), % ≤
|
0.40
|
0.40
|
0.50
|
0.40
|
0.40
|
0.50
|
0.40
|
0.40
|
0.50
|
0.40
|
0.40
|
0.50
|
|
|
|
apparent density g/ml ≥
|
0.48
|
0.45
|
0.42
|
0.48
|
0.45
|
0.42
|
0.50
|
0.45
|
0.42
|
0.50
|
0.45
|
0.42
|
|
|
|
sieve residue
|
0.25mm, % ≤
|
2.0
|
2.0
|
8.0
|
2.0
|
2.0
|
8.0
|
2.0
|
2.0
|
8.0
|
2.0
|
2.0
|
8.0
|
|
|
0.063mm, % ≤
|
95
|
90
|
85
|
95
|
90
|
85
|
95
|
90
|
85
|
95
|
90
|
85
|
|
|
number of "fish eyes" / 400cm2 ≤
|
20
|
40
|
90
|
20
|
40
|
90
|
30
|
50
|
90
|
30
|
50
|
90
|
|
|
|
plasticizer absorption per 100 g of resin (g) ≥
|
19
|
17
|
-
|
15
|
15
|
-
|
12
|
-
|
-
|
12
|
-
|
-
|
|
|
|
whiteness (160 °c 10 min), % ≥
|
78
|
75
|
70
|
78
|
75
|
70
|
75
|
70
|
70
|
75
|
70
|
70
|
|
|
|
conductivity of aqueous extract (μs/cm.g) ≤
|
-
|
|
|
|
|
|
|
residual vinyl chloride content (mg/kg) ≤
|
5
|
10
|
30
|
5
|
10
|
30
|
5
|
10
|
30
|
5
|
10
|
30
|
30
|
|
|
residual 1.1-dichloroethane content (mg/kg) ≤
|
150 (sanitary grade)
|
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
iii. uses
pvc resin is widely used in the chemical industry in the production of anti-corrosion pipes and fittings, tank linings, and in construction materials such as corrugated boards, door and window structures, or wall decorations; can also be used in the electrical and electronic industries for plugs, sockets, switches, and cables.
iv. packaging
can be packaged in kraft bags lined with plastic film, woven polypropylene woven or kraft and polypropylene composite bags with a net weight of 25.0± 0.2 kg per bag, or with other packaging methods; should ensure that the packaging is not damaged in the process of normal storage and transport, and that the product is protected from leakage and contamination.
v. storage and transport
should be transported in a clean carrier and should be protected from the rain.
this product is not dangerous and can be transported as general cargo.