ITEM | SG3 | SG4 | SG5 | SG6 | SG7 | SG8 |
K-Value | 71-72 | 69-70 | 66-68 | 63-65 | 60-62 | 55-59 |
Viscosity, ml/g | 135-127 | 126-119 | 118-107 | 106-96 | 95-87 | 86-73 |
Number of impurity particle | ≤30 | ≤30 | ≤30 | ≤30 | ≤40 | ≤40 |
Volatiles content%,≤ | ≤0.40 | ≤0.40 | ≤0.40 | ≤0.40 | ≤0.40 | ≤0.40 |
Apparent density | ≥ 0.42 g/ml | ≥ 0.45g/ml | ||||
Number of grain/400cm 2 | ≤40 | ≤40 | ≤40 | ≤40 | ≤40 | ≤40 |
Whiteness | ≥74% | ≥74% | ≥74% | ≥74% | ≥70% | ≥70% |
Plasticizer absorbency value of 100g resin | 25 | 22 | 19 | 16 | 14 | 14 |
Residual chlore Thylene content | ≤5 mg/kg |