Test No. 203 : fish, acute toxicity test / Organisation for Economic Co-operation and Development.
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 may be used, the choice being at the discretion of t...
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| Format: | Ebook |
| Language: | English |
| Published: |
[Paris] :
OECD Publishing,
1992.
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| Series: | OECD Guidelines for the Testing of Chemicals, Section 2: Effects on Biotic Systems
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| Subjects: | |
| Online Access: | OECD |
| Summary: | 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 may be used, the choice being at the discretion of the testing laboratory. At least seven fishes must be used at each test concentration and in the controls. The test substance should be administered to, at least, five concentrations in a geometric series with a factor preferably not exceeding 2.2. The limit test corresponds to one dose level of 100 mg/L. This study includes the observations of fish at least after 24, 48, 72 and 96 hours. The cumulative percentage mortality for each exposure period is plotted against concentration on logarithmic probability paper. |
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| Physical Description: | 1 online resource (9 pages). |
| Format: | Mode of access: World Wide Web. |
| Bibliography: | Includes bibliographical references. |
| ISBN: | 9264069976 9264069968 9789264069978 9789264069961 |
| ISSN: | 2074-5761 |
| DOI: | 10.1787/9789264069961-en |