In the midst of the recovery from the COVID-19 pandemic, trade and economic growth face new challenges as the Russian Federation’s large-scale war against Ukraine has increased uncertainty and tensions along supply chains and the People’s Republic of China’s trade performance has fallen...

How can the environmental effects of trade liberalisation agreements be assessed ? Are available methodologies sufficiently tuned to current concerns? In order to take stock of the state of the art in assessment methodologies, the OECD organised a two-day technical workshop to focus on past...

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. It also describes procedures to determine acid...

This Test Guideline describes an assay that assesses early life-stage effects and potential adverse consequences of putative endocrine disrupting chemicals (e.g. oestrogens, androgens and steroidogenesis inhibitors) on fish sexual development. In the test, fish are exposed, from newly fertilized...

This Test Guideline is designed to assess the toxicity of substances to freshwater aquatic plants of the genus Lemna (duckweed). Exponentially growing plant cultures of the genus Lemna (Lemna gibba and Lemna minor usually) are allowed to grow as monocultures in, at least, five concentrations of...