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SAMPLING OIL-WATER MIXTURES AT OHMSETT (OIL AND HAZARDOUS MATERIALS SIMULATED ENVIRONMENTAL TEST TANK)
Citation:
Borst, M. SAMPLING OIL-WATER MIXTURES AT OHMSETT (OIL AND HAZARDOUS MATERIALS SIMULATED ENVIRONMENTAL TEST TANK). U.S. Environmental Protection Agency, Washington, D.C., EPA/600/2-87/073 (NTIS PB88102892), 1987.
Description:
The report describes procedures developed at the Oil and Hazardous Material Simulated Environmental Test Tank (OHMSETT) for sampling oil and water mixtures. Two procedures for sampling in containers are discussed: grab and stratified sampling. Both of these techniques require stripping free-standing water from the container bottom. The grab sample technique requires that the remaining fluids be thoroughly mixed before immersing a bottle through the resulting homogeneous emulsion. The stratified sampling procedure uses a sample thief to capture a segmented cross-section of the remaining fluids. Two procedures for sampling flowing fluids were also tested. The two sampling tubes tested were installed immediately downstream of a series of static mixers and a centrifugal pump. The sampling ports were a simple slotted tube and a pilot-shaped tube.