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Test kit for measuring oxygen dissolved in water. Each kit contains self-filling ampoules for colorimetric analysis, a comparator, a sample cup and directions. Can be used in ponds, lakes, streams and rivers to measure the amount of dissolved oxygen in the range of 1-12 ppm. Purchased with 2005 Title IIA Funds administered by the Board of Regents, State of Iowa and donated by Clarke College, Dubuque, Iowa. Water testing, dissolved oxygen, hydrology. RiverQuest. | |