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Counting numbers listed on the side of the tube to provide a reading of the turbidity, in units of TU

Tags: turbidity, watertesting, qinghai, shem, china, scotgfrank, petrifilm, shemgroup, scot, colilert, scotfrank, water, waterquality, afsdxvrzoomnikkor18200mmf3556gifed
Uploaded: March 8, 2009
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