Standard Guide for Conducting Daphnia magna Life-Cycle Toxicity Tests
1.1 This guide covers procedures for obtaining laboratory data concerning the adverse effects of a test material (added to dilution water, but not to food) on Daphnia magna Straus, 1820, during continuous exposure throughout a life-cycle using the renewal or flow-through techniques. These procedures also should be useful for conducting life-cycle toxicity tests with other invertebrate species, although modifications might be necessary.
1.2 These procedures are applicable to most chemicals, either individually or in formulations, commercial products, or known mixtures. With appropriate modifications, these procedures can be used to conduct tests on temperature, dissolved oxygen, pH, and on such materials as aqueous effluents (also see Guide E 1192), leachates, oils, particulate matter, sediments, and surface waters. The technique, (renewal or flow-through), will be selected based on the chemical characteristics of the test material such as high oxygen demand, volatility, susceptibility to transformation (biologically or chemically), or sorption to glass.
1.3 Modification of these procedures might be justified by special needs or circumstances. Although using appropriate procedures is more important than following prescribed procedures, results of tests conducted using unusual procedures are not likely to be comparable to results of standard test procedures. Comparison of results obtained using modified and unmodified versions of these procedures might provide useful information on new concepts and procedures for conducting life-cycle toxicity tests with D. magna.
1.4 This guide is arranged as follows:
Section
Referenced Documents
Termninology
Summary of Guide
Significance and Use
Apparatus
Facilities
Construction Materials
Test Chambers
Cleaning
Acceptability
Reagents
Purity of Reagents
Hazards
Dilution Water
Requirements
Source
Treatment
Characterization
Test Material
General
Stock Solutions
Test Concentrations(s)
Test Organisms
Species
Age
Source
Brood Stock
Food
Handling
Harvesting Young
Quality
Procedure
Experimental Design
Dissolved Oxygen
Temperature
Loading
Selection of Test System
Beginning the Test
Care and Maintenance
Feeding
Duration
Biological Data
Other Measurements
Analytical Methodology
Acceptability of Test
Calculation of Results
Report
Keywords
Appendixes
Statistical Guidance
Food
1.5 The values stated in SI units are to be regarded as the standard.The values given in parentheses are for information only.;
1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Specific hazard statements are given in Section 8.
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