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1.1 This guide describes procedures for obtaining laboratory data concerning the adverse effects of a test material added to dilution water, but not to food, on certain species of saltwater mysids during continuous exposure from immediately after birth until after the beginning of reproduction using the flow-through technique. These procedures will probably be useful for conducting life-cycle toxicity tests with other species of mysids, although modifications might be necessary.

1.2 Other modifications 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 many other tests. 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 saltwater mysids.

1.3 These procedures are applicable to all chemicals, either individually or in formulations, commercial products, or known mixtures, that can be measured accurately at the necessary concentrations in water. With appropriate modifications, these procedures can be used to conduct tests on temperature, dissolved oxygen, and pH and on such materials as aqueous effluents (see also Guide E1192), leachates, oils, particulate matter, sediments, and surface waters.

1.4 This guide is arranged as follows:

Section Referenced Documents 2 Terminology 3 Summary of Guide 4 Significance and Use 5 Hazards 6 Apparatus 7 Facilities 7.1 Construction Materials 7.2 Metering System 7.3 Test Chambers 7.4 Cleaning 7.5 Acceptability 7.6 Dilution Water 8 Requirements 8.1 Source 8.2 Treatment 8.3 Characterization 8.4 Test Material 9 General 9.1 Stock Solution 9.2 Test Concentration(s) 9.3 Test Organisms 10 Species 10.1 Age 10.2 Source 10.3 Brood Stock 10.4 Food 10.5 Handling 10.6 Harvesting Young 10.7 Quality 10.8 Procedure 11 Experimental Design 11.1 Dissolved Oxygen 11.2 Temperature 11.3 Beginning the Test 11.4 Feeding 11.5 Cleaning 11.6 Pairing 11.7 Duration of Test 11.8 Biological Data 11.9 Other Measurements 11.10 Analytical Methodology 12 Acceptability of Test 13 Calculation 14 Documentation 15 Appendix X1. Statistical Guidance

1.5 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 6.