|
Parameter
|
|
Grade
|
|
|
|
||||
|
Standard: GB5761-1993
|
|
SG3
|
SG5
|
SG7
|
SG8
|
||||
|
K - Value
|
|
72 - 71
|
66 - 68
|
62 - 60
|
59 - 55
|
||||
|
Polymerizing Index
|
|
1300 +/-50
|
1000 +/-50
|
800 +/-50
|
700 +/-50
|
||||
|
Number of impurity particles ( ≤)
|
|
16
|
16
|
20
|
20
|
||||
|
Volatile content (incl. water) (% ≤)
|
|
0.3
|
0.4
|
0.4
|
0.4
|
||||
|
Apparent density (≥)
|
|
0.42
|
0.48
|
0.48
|
0.50
|
||||
|
Particle size
|
≥ 0.25mm ≤
|
2.0
|
2.0
|
2.0
|
0.4
|
||||
|
|
≥ 0.063mm ≥
|
95
|
95
|
95
|
95
|
||||
|
Number of Fish Eye (/400 cm2) (≤)
|
|
20
|
20
|
30
|
30
|
||||
|
Plasticizer absorption of 100g resin ( ≥)
|
|
26
|
19
|
12
|
22
|
||||
|
Whiteness (160°C, after 10 min.) (% ≥)
|
|
78
|
78
|
75
|
75
|
||||
|
VCM Residue PPM ( ≤)
|
|
5
|
5
|
5
|
5
|
||||
