| Parameter | Method |
|---|---|
| Moisture | Gravimetric @105 °C |
| Total Organic Carbon (TOC) | Walkley-Black |
| Total Nitrogen | AOAC 978.04 B |
| Phosphorus | AOAC 966.01 |
| Arsenic | Hydride-A.A.S. |
| Cadmium | ISO 15586 Annex B |
| Lead | ISO 15586 Annex B |
| Mercury | Hydride-A.A.S. |
| Copper | ISO 15586 Annex B |
| Chrome | ISO 15586 Annex B |
| Zinc | A.A.S. |
