\Type
\Name of specification
\Grade |
SG3
|
SG4
|
|
super |
1st |
standard |
super |
1st |
standard |
|
1 |
Viscosity number ml/g
average polymerizafion degree |
135-127
(72-71)
[1350-1250] |
126-199
(70-69)
[1250-1150] |
|
2 |
black spot
< |
16 |
30 |
90 |
16 |
30 |
90 |
|
3 |
Volatile
matter and moisture% < |
0.30 |
0.40 |
0.50 |
0.30 |
0.40 |
0.50 |
|
4 |
Bulk density
g/ml > |
0.45 |
0.42 |
0.40 |
0.45 |
0.42
|
0.40 |
|
5 |
residual% |
Particle
size% |
0.25mm sieve
< |
2.0
|
2.0
|
8.0 |
2.0 |
2.0 |
8.0 |
|
Particle
size% |
0.063mm
sieve > |
90 |
90 |
80 |
90 |
90 |
80 |
|
6 |
Fish hole
number/400cm < |
20
|
40 |
- |
20 |
40 |
- |
|
7 |
Plasticizer
absorption > per
100g resin g. |
27
|
25 |
- |
27 |
25 |
- |
|
8 |
160°C ,100min
% |
74 |
- |
- |
74 |
- |
- |
|
9 |
Conductivity
of water extract ion solufion s/m < |
5¡Á10-3
- |
5¡Á10-3
- |
|
10 |
vcm residuals
ug/g< |
8
|
10 |
- |
8 |
10 |
- |