We have a wide range of analytical tools and methods to assess the physical and chemical properties of your product. Especially with regard to nanoparticles (e.g. size distribution, agglomeration, dispersion stability) but also beyond. Examples for this are:  

Surface activity

OECD Guideline for the testing of chemicals, No. 115: Surface Tension of Aqueous Solutions

 

Partition coefficient

OECD Guideline for the testing of chemicals, No. 123: Partition Coefficient (1-Octanol / Water): Slow-Stirring Method

 

Agglomeration

OECD Guideline for the testing of chemicals, No. 318: Dispersion Stability of Nanomaterials in Simulated Environmental Media

 

In addition, our selection of test organisms allows a range of standard and non-standard ecotoxicity tests (acute and chronic) in our laboratory (e.g. for REACH- and CLP- guidelines). Corresponding aquatic test systems cover both sediment and water phase exposure. This can be realized either by static, semi-static or flow-through test designs.

nET test systems

An extract of the studies we offer:  

Desmodesmus subspicatus

OECD Guideline for the Testing of Chemicals, No. 201: Freshwater Alga and Cyanobacteria, Growth Inhibition Test

 

Daphnia magna

OECD Guideline for the Testing of Chemicals, No. 202: Daphnia sp., Acute Immobilization Test (2004)

OECD Guideline for the Testing of Chemicals, No. 211: Daphnia magna Reproduction Test (2008)

ISO (6341: 2012) Water quality - Determination of the inhibition of the mobility of Daphnia magna Straus (Cladocera, Crustacea) - Acute toxicity test (2012)

EPA Ecological Effects Test Guidelines OPPTS 850.1010 Aquatic Invertebrate Acute Toxicity Test, Freshwater Daphnids (1996)

EPA Ecological Effects Test Guidelines OPPTS 850.1300 Daphnid Chronic Toxicity Test (1996)

 

Chironomus riparius

OECD Guideline for the Testing of Chemicals, No. 218: Sediment-Water Chironomide Toxicity Test Using Spiked Sediment (2004)

OECD Guideline for the Testing of Chemicals, No. 219: Sediment-Water Chironomide Toxicity Test Using Spiked Water (2004)

OECD Guideline for the Testing of Chemicals, No. 233: Sediment-Water Chironomid Life-Cycle Toxicity Test Using Spiked Water or Spiked Sediment (2011)

OECD Guideline for the Testing of Chemicals, No. 235: Chironomus sp., Acute Immobilization Test (2010)

 

Hyalella azteca

EPA: Methods for Measuring the Toxicity and Bioaccumulation of Sediment-Associated Contaminants with Freshwater Invertebrates (2010)

 

Activated sludge

OECD Guideline for the Testing of Chemicals, No. 209: Activated Sludge, Respiration Inhibition Test (2010)

OECD Guideline for the Testing of Chemicals, No. 301 D / F: Ready Biodegradability: Closed Bottle Test / Manometric Respirometry Test (1992)