| Sample | HDPE-WT-003 |
| Plastic Type | High-density Polyethylene (HDPE) |
| Molecular Formula | (C2H4)n |
| Color | White |
| Common use | Bottle cap |
| Degradation details | Exposure to environmental conditions such as dust, dirt, temperature variations (without exposure to sun radiation) and to mechanical stress |
| Time of degradation | 5 years |
| Sample description | Rigid and very degraded cap being covered with dirt, especially inside (see figure bellow) and with a lot of scratches. The plastic is also yellowish due to degradation conditions. |
| Microscopic image(s) | – |
| Macroscopic image(s) |   |
| Spectral Data type | Raman |
| Raman spectrum acquisition parameters | Laser wavelength: 785 nm Laser Power: 300 mW (100% of the laser power) Exposure time: 1 s Objective magnification: 20X (NA 0.35) Spectrum range: 765-1600 cm-1 |
