Sediment Organisms
ECT’s portfolio of sediment tests includes several standard sediment organisms. All tests are offered according to GLP in compliance with OECD, EPA and ISO guidelines. If required by specific scientific or regulatory needs, additional custom-designed studies can be developed and performed, e.g. by including alternative test species or modified exposure scenarios.
| Aquatic Insects | Guideline |
|---|---|
| Sediment-Water Chironomid Toxicity Test Using Spiked Sediment | OECD 218 (2023) |
| Sediment-Water Chironomid Toxicity Test Using Spiked Water | OECD 219 (2023) |
| Sediment-Water Chironomid Life-Cycle Toxicity Test Using Spiked Water or Spiked Sediment | OECD 233 (2010) |
| Aquatic Oligochaetes | Guideline |
|---|---|
| Sediment-Water Lumbriculus Toxicity Test Using Spiked Sediment | OECD 225 (2007) |
| Sediment Toxicity Test with Tubifex tubifex | ASTM E1706 |
| Aquatic Crustaceans | Guideline |
|---|---|
| Hyalella azteca, Sediment Toxicity (28 Days) | based on OECD 225 (2007) and ASTM E1706 |
| Hyalella azteca, Acute Sediment Toxicity (10 Days) | based on US EPA 600/R-99/064, method 100.1, flow-through, semi-static or static |
| Hyalella azteca, Chronic Sediment Toxicity (42 Days) | based on US EPA 600/R-99/064, method 100.4, flow-through, semi-static or static |
| Aquatic Macrophytes | Guideline |
|---|---|
| Water-Sediment Myriophyllum spicatum Toxicity Test | OECD 239 (2025) |
| Water-Sediment Glyceria maxima Toxicity Test | Ring-test Protocol (2022) |
| Physical / Chemical Characterisation of Sediment | |
|---|---|
| • pH • Texture • Organic content • Organic carbon content • Maximum water capacity • Cation exchange capacity (according to Mehlich) • Nitrogen content • Carbonate content |