There are numerous procedures for measuring COD, Every single with its benefits and drawbacks. The commonest methods incorporate the dichromate technique, the permanganate method, and also the shut reflux method.
Drinking water High quality Assessment: COD measurement is usually a worthwhile Resource for assessing the overall air pollution stage and natural content material of h2o. High COD values show the existence of considerable amounts of organic pollutants, like wastewater, industrial effluents, or organic and natural chemicals. Checking COD assists in analyzing the drinking water quality and figuring out resources of air pollution.
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ISO-compliant reagents: Conform to ISO 15705:2002 techniques with regard for their composition. These compositions of these COD vials are similar to that of EPA criteria, so Additionally they incorporate mercury.
When getting results, the analyst might utilize a CHEMetrics photometer, or some other manufacturers’ spectrophotometer. Prior to relocating on, wipe down the reagent blank and test vials until finally They are really thoroughly clean and dry.
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The COD Investigation will figure out the equal oxygen focus required to chemically oxidise organic and natural molecules in water.
There are a few standardized procedures for measuring COD, but the most common could be the dichromate reactor digestion strategy which entails the response of sample with potassium dichromate inside a sulfuric acid Option.
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