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<br />Table 1. Colorado Acute Test Conditions. <br />Ceriodaphnia <br />Test type: Static Renewal <br />Temperature: 20 +/- 1 °C <br />Photoperiod: 16h light/ Bh dark <br />Test Chamber size: 30 ml <br />Test Sample vol.: 20 ml <br />Renewal Period: 24 hours <br />Age of Organisms: <24 hours <br />Number per Chamber: 5 <br />Replicate Chambers/Conc.: 2 <br />Feeding Regime/Chamber: None <br />Test Duration: 24-48 hrs <br />Dilution Water: Receiving Water <br />Fathead Minnows <br />Static Renewal <br />20 +/- 1 °C <br />16h light/ Bh dark <br />600 ml <br />150 ml <br />24 hours <br />< 168 ± 12 hours <br />5 <br />4 <br />0.1 ml brine shrimp <br />at 0 and 48 hours <br />96 hours <br />Receiving Water <br />8- <br />M M <br />anal Cooo Walcrm a~l~c•tl <br />-~~ VOUr PIpIPCIIf)n <br />