WK-821 PET is a kind of PET polymer material which is widely used in the bottles of edible oil. It is mainly used in the production of edible oil, wine, medical and sparkling beverage bottles, and APET sheet.
| Parameter | Unit | Value | Test method |
| Intrinsic Viscosity | dL/g | 0.830±0.015 | Q/WK007 |
| Acetaldehyde Content | μg/g | ≤1.0 | Q/WK007 |
| Color (L-value) | — | ≥83.0 | Q/WK007 |
| Color (b-value) | — | ≤-0.5 | Q/WK007 |
| Peak Temperature when Melting（DSC by Nitrogen） | °C | 245± 2 | Q/WK007 |
| Moisture Content | % | ≤0.20 | Q/WK007 |
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