| Code | Sampling Type | Description |
|---|---|---|
| 1 | insitu | Continuous or quasi-continuous in situ measurement |
| 2 | flask | Analysis of air samples in flasks |
| 3 | filter | Filter measurement |
| 5 | bottle | Analysis of samples in bottles for hydrographic data |
| 6 | bag | |
| 7 | PFP | |
| 8 | remote | column integration (remote sensing) |