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Topic: Winkler test for dissolved oxygen

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	Encyclopedia: Winkler test for dissolved oxygen (Site not responding. Last check: 2007-10-29)
		In ecology, biochemical (biological) oxygen demand (BOD) is an indicator for the concentration of biodegradable organic matter present in a sample of water.
		test is an example of analysis that determines classes of materials in a sample.
		Instrumental methods for measurement of Dissolved Oxygen have widely supplanted the routine use of the Winkler test, although it is still widely used to check instrument calibration.
	www.nationmaster.com /encyclopedia/Winkler-test-for-dissolved-oxygen (926 words)

	Winkler test for dissolved oxygen - Open Encyclopedia (Site not responding. Last check: 2007-10-29)
		The Winkler test is used to determine the level of dissolved oxygen in fresh water samples.
		Thus 1ml of thiosulfate is equivalent to 1mg oxygen per 100ml fresh water.
		For Biological Oxygen Demand (BOD) two samples are collected at each site, an A and a B sample.
	open-encyclopedia.com /Winkler_test_for_dissolved_oxygen (298 words)

	Learn more about Winkler test for dissolved oxygen in the online encyclopedia. (Site not responding. Last check: 2007-10-29)
		Learn more about Winkler test for dissolved oxygen in the online encyclopedia.
		Each 1ml of thiosulphate titre is equivalent to 0.1mg of oxygen in the 10ml subsample.
		Thus 1ml of thiosulphate is equivalent to 1mg oxygen per 100ml fresh water.
	www.onlineencyclopedia.org /w/wi/winkler_test_for_dissolved_oxygen.html (395 words)

	Winkler test for dissolved oxygen at opensource encyclopedia (Site not responding. Last check: 2007-10-29)
		Winkler test for dissolved oxygen at opensource encyclopedia
		Each 1ml of thiosulfate titre is equivalent to 0.1mg of oxygen in the 10ml subsample.
		After five days sample B has its stage 1 treatment, then both samples are put through stage 2 together.
	wiki.tatet.com /Winkler_test_for_dissolved_oxygen.html (402 words)

	How To Guides: Winkler test for dissolved oxygen
		How To Guides: Winkler test for dissolved oxygen
		Notes Each 1ml of thiosulphate titre is equivalent to 0.1mg of oxygen in the 10ml subsample.
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	how-to.informationslurp.com /Winkler_test_for_dissolv.html (310 words)

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