| Features | standard, heat resistance |
| Application | tubing |
Test items | Index | Test result |
Appearance | White powder | White powder |
Average degree of polymerization P | 981 ～ 1080 | 1010 |
The number of impurity particles, pcs | ≤ 16 | 4 |
Volatile matter (including water),% | ≤ 0.30 | 0.12 |
Apparent density, g/mL | 0.51 ～ 0.57 | 0.51 |
250μm sieve residue, % | ≤ 1.6 | 0.7 |
Number of "fish eyes", pcs/400cm^2 | ≤ 20 | 4 |
Plasticizer absorption, g/100g | ≥ 20 | 22 |
| Whiteness(160℃,10min),% | ≥.78 | 81 |
| Residual nitrogen vinyl monomer, μg/g | ≤ 1 | 0.1 |
| Dry flow time, s/400cm^3 | 2.0 ～ 6.0 | 3.4 |
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 |  |  |
| Features | standard, heat resistance |
| Application | tubing |
Test items | Index | Test result |
Appearance | White powder | White powder |
Average degree of polymerization P | 981 ～ 1080 | 1010 |
The number of impurity particles, pcs | ≤ 16 | 4 |
Volatile matter (including water),% | ≤ 0.30 | 0.12 |
Apparent density, g/mL | 0.51 ～ 0.57 | 0.51 |
250μm sieve residue, % | ≤ 1.6 | 0.7 |
Number of "fish eyes", pcs/400cm^2 | ≤ 20 | 4 |
Plasticizer absorption, g/100g | ≥ 20 | 22 |
| Whiteness(160℃,10min),% | ≥.78 | 81 |
| Residual nitrogen vinyl monomer, μg/g | ≤ 1 | 0.1 |
| Dry flow time, s/400cm^3 | 2.0 ～ 6.0 | 3.4 |
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