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21 Jan 2000 |
Test No. 120: Solution/Extraction Behaviour of Polymers in Water
This Test Guideline describes a method to analyse the solution/extraction behaviour of polymers in water, which uses the flask method with modifications. Three samples of 10 g of particles of the test substance are weighed into each of three vessels ... |
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22 Jan 2001 |
Test No. 121: Estimation of the Adsorption Coefficient (Koc ) on Soil and on Sewage Sludge using High Performance Liquid Chromatography (HPLC)
This Test Guideline describes an experimental method using HPLC for the estimation of the adsorption coefficient Koc in soil and in sewage sludge. The adsorption coefficient is defined as the ratio between the concentration of the substance in the ... |
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26 Jul 2013 |
Test No. 122: Determination of pH, Acidity and Alkalinity
This Test Guideline describes the procedure for the electronic determination of pH of an undiluted aqueous solution or dispersion, the pH of a dilution of a solution or dispersion in water, or the pH of a chemical diluted to end-use concentration ... |
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30 Jun 2022 |
Test No. 123: Partition Coefficient (1-Octanol/Water): Slow-Stirring Method
This Test Guideline describes the slow-stirring method, which permits the determination of the 1-octanol/water partition coefficient (POW) values up to a log POW of 8.2. The partition coefficient between water and 1-octanol (POW) is defined as the ... |
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30 Jun 2022 |
Test No. 124: Determination of the Volume Specific Surface Area of Manufactured Nanomaterials
This Test Guideline (TG) describes a harmonised procedure to determine the Volume Specific Surface Area (VSSA) of powdered solid manufactured nanomaterials (MNs). |
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04 Jul 2023 |
Test No. 125: Nanomaterial Particle Size and Size Distribution of Nanomaterials
This Test Guideline, covering nanomaterials spanning from 1 nm to 1000 nm, is intended for particle size and particle size distribution measurements of nanomaterials. |
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04 Jul 2023 |
Test No. 126: Determination of the Hydrophobicity Index of Nanomaterials Through an Affinity Measurement
This Test Guideline (TG) describes a method to determine the hydrophobicity index (Hy) of nanomaterials (NMs), through an affinity measurement. Hydrophobicity is defined as "the association of non-polar groups or molecules in an aqueous environment... |
OECD Guidelines for the Testing of Chemicals, Section 1
Physical-Chemical properties
The OECD Guidelines for the Testing of Chemicals is a collection of about 150 of the most relevant internationally agreed testing methods used by government, industry and independent laboratories to identify and characterise potential hazards of chemicals. They are a set of tools for professionals, used primarily in regulatory safety testing and subsequent chemical and chemical product notification, chemical registration and in chemical evaluation. They can also be used for the selection and ranking of candidate chemicals during the development of new chemicals and products and in toxicology research. This group of tests covers physical-chemical properties.
Also available in: French
- ISSN: 20745753 (online)
- https://doi.org/10.1787/20745753