| Code | FLS-PET （base polymer customized） |
| Appearance | Yellowish brown granules |
| Effective ingredients | Natural anion ore |
| Effective solid content（%） | 20 |
| Negative ion release (point-to-point) | 4000~5000/cm3 |
| Intrinsic viscosity (IV, g/10min) | 0.51±0.02 |
| Moisture (%) | ≤0.2 |
| Melting point (℃) | 260±10 |
| Density (g/cm3) | 1.39 |
| Weight of 100 particles(g) | 1.94 |
| Filter value (mPa·cm2/g) | 0.04 |