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Polyvinyl Chloride
Calcium Carbide
Sodium Hydroxide
Industrial Bleaching Liquid
Chlorine Liquid
Hydrochloric acid
 

Product Specifications

National Standard of 4-3 Loose Type Polyvinyl Chloride(GB8761-86) Table 1:
NO.
Item/Grade/Type
PVC-SG1
PVC-SG2
PVC-SG3
PVC-SG4
First Grade A
First Grade
Second Grade
First Grade
Second Grade
First Grade
Second Grade
A
B
A
B
A
B
1
Viscosity Number mL/g
154-144
143-136
135-127
126-118
2
Apparent Densityg/M1
0.42
0.42
0.42
0.40
0.42
0.42
0.40
0.42
0.42
0.40
3
Plasticizer Absorption of 100g Resin, g ≥
25
25
25
16
25
25
16
22
22
16
4
Volatile matter(include water) Content%≤
0.40
0.40
0.40
0.50
0.40
0.40
0.50
0.40
0.40
0.50
5

Sieving Rate%
60 meshes 0.25mm sieve pore ≥
98.0
98.0
98.0
92.0
98.0
98.0
92.0
98.0
98.0
92.0

250 meshes 0.063mm sieve pore≤
10.0
10.0
10.0
20.0
10.0
10.0
20.0
10.0
10.0
20.0
6

Total number of black-yellow spot per 100g resin adnd number of black spot≤
Total number
30
30
30
130
30
30
130
30
30
130
Number of black spot
10
10
10
30
10
10
30
10
10
30
7
Whiteness % ≥
90
90
90
85
90
90
85
90
90
85
8
Number of fish eye, per 1000
cm2 ≤
10
10
  
    
10
  
  
10
  
  
9
Conductivity of 10% resin water extractI/(O, cm)≤
5×10-6
5×0-5
  
    
5×0-5
  
  
  
  
  
10
Residual vinyl chloride gas content ppm ≤
10
10
10
    
10
10
  
10
10
  
11
Thermal stability of resin
to be determined
  
  
    
  
  
  
  
  
  
National Standard of 4-3 Loose Type Polyvinyl Chloride(GB8761-86) Table 2:
NO.
Item/Grade/Type
PVC-SG5
PVC-SG6
PVC-SG7
First Grade
Second Grade
First Grade
Second Grade
First Grade
Second Grade
A
B
A
B
A
B
1
Viscosity Number mL/g
117-107
105-96
95-85
2
Apparent Densityg/M1
0.45
0.45
0.45
0.45
0.45
0.40
0.15
0.45
0.40
3
Plasticizer Absorption of 100g Resin, g ≥
19
19
13
16
16
13
14
14
13
4
Volatile matter(include water) Content%≤
0.40
0.40
0.50
0.40
0.40
0.50
0.40
0.40
0.50
5

Sieving Rate %
60 meshes 0.25mm sieve pore ≥
98.0
98.0
92.0
98.0
98.0
92.0
98.0
98.0
92.0

250 meshes 0.063mm sieve pore≤
10.0
10.0
20.0
10.0
10.0
20.0
10.0
10.0
20.0
6

Total number of black-yellow spot per 100g resin adnd number of black spot≤
Total number
30
30
130
30
-30
130
30
30
130
 
10
10
30
10
10
30
10
10
30
7
Whiteness % ≥
90
90
85
90
90
85
90
90
85
8
Number of fish eye, per 1000cm2 ≤
10
  
  
10
    
    
10
    
    
9
Conductivity of 10% resin water extract I/(O
Number of black spot
, cm)≤
  
  
  
    
    
    
    
    
    
10
Residual vinyl chloride gas content ppm ≤
10
10
  
10
10
  
10
10
  
11
Thermal stability of resin
  
  
  
  
  
  
  
  
  

 
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