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By definition, chemical BOD Test oxygen demand is “a measure of the oxygen equivalent Of the three test methods that determine oxygen of the organic matter content of a sample that is suscep- demand (BOD, COD and TOC), the BOD test most tible to oxidation by a strong chemical oxidant.”*.
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Chemical Oxygen Demand is considered a method-defined parameter per the definition in the Code of Federal Regulations, Part 136.6, Section (a) (5). This means that the method may not be modified per Part 136.6, Section (b) (3).
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The vials were fully filled with water, sealed with gas-tight screw-caps and immediately kept in an adiabatic box with ice until further analysis. Before analysis, all samples were shaken in a sealed condition. Fig. 1. Schematic graph showing the sampling sites
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Chemical Oxygen Demand Chemical oxygen demand (COD) is one of the most important parameters in effluent monitoring and treatment. The COD test is used to predict the requirement an effluent will have for oxygen and hence the effluent''s likely impact on the aquatic life of the receiving water course.
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Cent Tube Disp, Screw Cap Gpi 24-400, 50ml. Corning. These disposable 50mL Pyrex® glass centrifuge tubes are manufactured from Type I borosilicate glass and have a GPI 24-400 thread. They are supplied without caps. The tubes are designed to withstand centrifugation up to 3,000 RCF and are packed in
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chemical oxygen demand (BOD) tests because both gas and liquid phases are present in a respirometer sample, whereas in a BOD test bottle there is only a liquid phase. The BOD reaction is limited by
