Definitive test. (i) The purpose of the definitive test is to determine the concentration response curves, the EC10’s, EC50’s, and EC90’s for algal growth for each species tested, with a minimum amount of testing beyond the range-finding test.
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Definitive test. (i) The purpose of the definitive test is to determine the concentration response curves, the EC10EC ’s, EC50EC ’s, and EC90EC ’s for algal test containers with appropriate vol- 10 50 90 umes of nutrient medium and/or test solution. Start the test by introducing algae into the test and control con- tainers in the growth for each species tested, with a minimum amount of testing beyond xxxxxxxx. Envi- ronmental conditions within the range-finding testgrowth xxxxxxxx are established at predetermined limits.
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