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REDUCED DISSOLVED OXYGEN TEST SYSTEM FOR MARINE ORGANISMS
Citation:
Miller, D., D. Body, J. Sinnett, S. Poucher, J. Sewall, AND D. Sleczkowski. REDUCED DISSOLVED OXYGEN TEST SYSTEM FOR MARINE ORGANISMS. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/J-94/370.
Description:
A flow-through test system was designed to examine minimum dissolved oxygen (D.O.) requirements of marine animals. he system provides up to six treatment concentrations between 0.3 mg D.O./I and saturation. ea water is degassed in a vacuum-evacuated packed column and the treatment concentrations are controlled electronically by time-proportional mixing of water from degassed and air-saturated seawater reservoirs. he system has proven capable of reliable continuous operation for test periods as long as 28 days, with the reduced D.O. treatments controlled to +/-0. 15 mg/l s.d. at flows > 10 mi/min and to +/- 0.25 mg/i s.d. at lower flow rates.