OECD Guidelines for the Testing of Chemicals, Section 2 Test No. 231: Amphibian Metamorphosis Assay PDF Download
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Author: OECD
Publisher: OECD Publishing
ISBN: 9264076247
Category :
Languages : en
Pages : 33
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Book Description
This Test Guideline describes an amphibian metamorphosis assay intended to screen substances which may interfere with the normal functioning of the hypothalamo-pituitary-thyroid axis. The assay was validated with the species Xenopus laevis, which is ...
Author: OECD
Publisher: OECD Publishing
ISBN: 9264076247
Category :
Languages : en
Pages : 33
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Book Description
This Test Guideline describes an amphibian metamorphosis assay intended to screen substances which may interfere with the normal functioning of the hypothalamo-pituitary-thyroid axis. The assay was validated with the species Xenopus laevis, which is ...
Author: OECD
Publisher: OECD Publishing
ISBN: 9264242341
Category :
Languages : en
Pages : 38
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Book Description
This Test Guideline describes the Medaka Extended One Generation Test (MEOGRT), which exposes fish over multiple generations to give data relevant to ecological hazard and risk assessment of chemicals, including suspected endocrine disrupting chemicals (EDCs). Exposure in the MEOGRT starts with ...
Author: OECD
Publisher: OECD Publishing
ISBN: 9264122389
Category :
Languages : en
Pages : 17
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Book Description
This Test Guideline describes an acute immobilisation assay on chronomids and is designed to complement existing Test Guidelines for chironomid chronic toxicity assays (TG 218, 219 and 233). The test method is based on TG 202: Daphnia sp. Acute ...
Author: OECD
Publisher: OECD Publishing
ISBN: 9264069984
Category :
Languages : en
Pages : 9
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Book Description
This Test Guideline presents guidance for measurement of lethal and other observed effects in fish exposed to test substances. It may be used in place of Test Guideline 203 if a longer observation period is considered useful and appropriate and the ...
Author: OECD
Publisher: OECD Publishing
ISBN: 9264264515
Category :
Languages : en
Pages : 28
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Book Description
This Test Guideline describes procedures designed to estimate the acute oral toxicity of substances to birds, and it provides three testing options: (1) limit dose test, (2) LD50-slope test, and (3) LD50-only test. The LD50-slope and LD50-only options are sequential testing procedures.
Author: OECD
Publisher: OECD Publishing
ISBN: 9264070206
Category :
Languages : en
Pages : 16
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Book Description
This Test Guideline is designed to assess the effects of prolonged exposure to chemicals on the growth of juvenile fish. Juvenile fish in exponential growth phase are placed, after being weighed, in test chambers and are normally exposed to five ...
Author: OECD
Publisher: OECD Publishing
ISBN: 9264203788
Category :
Languages : en
Pages : 24
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Book Description
The test method described in this Test Guideline, is intended to define the lethal and sub-lethal effects of chemicals on the early life stages of the species tested. The early-life stages of fish are exposed to five concentrations of the test ...
Author: OECD
Publisher: OECD Publishing
ISBN: 9264069968
Category :
Languages : en
Pages : 10
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Book Description
The fish are exposed to the test substance preferably for a period of 96 hours. Mortalities are recorded at 24, 48, 72 and 96 hours and the concentrations which kill 50 per cent of the fish (LC50) are determined where possible. One or more species ...
Author: OECD
Publisher: OECD Publishing
ISBN: 9264070184
Category :
Languages : en
Pages : 7
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Book Description
This Test Guideline is a laboratory test method, designed to assess the acute contact toxicity of pesticides and other chemicals to adult worker honeybees. Anaesthetized adult worker honeybees are exposed to five doses in a geometric series of the ...
Author: OECD
Publisher: OECD Publishing
ISBN: 9264284109
Category :
Languages : en
Pages : 11
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Book Description
This Test Guideline describes a method to assess effects of a test chemical on the phagocytotic activity of activated sludge containing protozoan organisms under defined conditions in the presence of different concentrations of the test chemical. The principle of biological sewage-treatment ...
