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This Test Guideline describes a laboratory test method to assess abiotic hydrolytic transformations of chemicals in aquatic systems at pH values normally found in the environment (pH 4 – 9). This Guideline is designed as a tiered approach; each tier is triggered by the results of the previous...
Persistent link: https://www.econbiz.de/10012441941
This Test Guideline describes a method to assess bioaccumulation of sediment-associated chemicals in endobenthic oligochaetes worms. It applies to stable, neutral organic chemicals having log Kow values between 3.0 and 6.0, superlipophilic substances that show a log Kow of more than 6.0, or...
Persistent link: https://www.econbiz.de/10012442038
studies performed with the substance (normally the rat, a minimum of 4 animals of one sex for each dose). Initial estimation …
Persistent link: https://www.econbiz.de/10012442261
This Test Guideline describes the determining of the ultraviolet-visible (UV-VIS) absorption spectrum of a chemical compound to have some indication of the wavelengths at which the compounds may be susceptible to photochemical degradation. Degradation will depend upon the total energy absorbed...
Persistent link: https://www.econbiz.de/10012443900
This Test Guideline has been designed to obtain the information necessary to confirm or to further characterise the potential neurotoxicity of chemicals in adult animals. This Test Guideline is designed for use with the rat. It specifically addresses the daily oral administration, by gavage, (in...
Persistent link: https://www.econbiz.de/10012444558
This Test Guideline includes two methods: a paper contact toxicity test and an artificial soil test. The recommended specie is Eisenia foetida (Michaelsen). The initial screening test (filter paper contact test) involves exposing earthworms to test substances on moist filter paper in order to...
Persistent link: https://www.econbiz.de/10012445618
This Test Guideline is designed to assess the toxicity of chemicals on the growth of the rooted aquatic plants (Myriophyllum spicatum) growing in water-sediment system. Shoot apices of healthy and non-flowering plant are potted in standardised, artificial sediment supplemented with additional...
Persistent link: https://www.econbiz.de/10012448789
This Test Guideline is designed to assess the toxicity of chemicals on the growth of submerged aquatic plants Myriophyllum spicatum growing in a sediment-free test system. In a modified Andrews’ medium Myriophyllum spicatum plant cultures are exposed to at least five different concentrations...
Persistent link: https://www.econbiz.de/10012448807
This dataset comprises trade in value added indicators for the most recent years, estimated using now-casting techniques. This approach estimates national input-output tables by projecting relationships observed in the latest TiVA benchmark year (currently 2011) into nowcast years (currently...
Persistent link: https://www.econbiz.de/10013527269
This dataset comprises trade in value added indicators for the most recent years, estimated using now-casting techniques. This approach estimates national input-output tables by projecting relationships observed in the latest TiVA benchmark year (currently 2011) into nowcast years (currently...
Persistent link: https://www.econbiz.de/10013527321