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May 23^rd, 2013, 6:11pm

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Water and Wastewater.com Help Forums › Water and Wastewater.com - Laboratory Forum › Water and Wastewater Laboratory Professional Forum › measurement of dissolved oxygen in testing process

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measurement of dissolved oxygen in testing process (Read 316 times)

Cooke RC YaBB Newbies Offline I love Water and Wastewater.com Posts: 6 Company or Organization: Fortrans Inc.	measurement of dissolved oxygen in testing process Aug 24^th, 2011, 10:38am I am testing a new method of increasing DO in water. I am using a YSI DO meter. When I run compressed air through our system I get 8.29 ppm DO and 97% saturation. When we run oxygen the levels are out of range of the YSI meter (20 ppm). The winkler method is only good up to 10 ppm. any suggestions?
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BarfingCat YaBB Newbies Offline Water and Wastewater.com is the best! Posts: 34 Independence, MO Gender: Company or Organization: Little Blue Valley Sewer Dist.	Re: measurement of dissolved oxygen in testing process Reply #1 - Aug 29^th, 2011, 5:02pm Not to Sound like a salesman, but Hach LDO range is 0.1 to 20.0 mg/l.
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Jim Royer Junior Member Offline I love Water and Wastewater.com Posts: 95 Company or Organization: Urbana Champaign SD	Re: measurement of dissolved oxygen in testing process Reply #2 - Sep 12^th, 2011, 3:18pm The Winkler will work. Just titrate a smaller aliquot of sample. DO meters will read up to 20 mg/L.
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Cooke RC YaBB Newbies Offline I love Water and Wastewater.com Posts: 6 Company or Organization: Fortrans Inc.	Re: measurement of dissolved oxygen in testing process Reply #3 - Sep 13^th, 2011, 8:32am Thank you. We will try that.
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