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BOD test bottles at the laboratory of a wastewater treatment plant. Biochemical oxygen demand (also known as BOD or biological oxygen demand) is an analytical parameter representing the amount of dissolved oxygen (DO) consumed by aerobic bacteria growing on the organic material present in a water sample at a specific temperature over a specific time period.
BOD Bottle BOD test bottles at the laboratory of a wastewater treatment plant. BOD Bottle or an incubation bottle is a main apparatus used for the Biological Oxygen Demand (BOD) test. During the five-day BOD or BOD5 test process, the BOD bottle is used for incubating diluted samples under the 20 °C or 68 °F of temperature.
Because the Ultimate BOD is so time consuming, the 5-day BOD has been almost universally adopted as a measure of relative pollution effect. There are also many different COD tests of which the 4-hour COD is probably the most common. There is no generalized correlation between the 5-day BOD and the ultimate BOD.
Marketing management employs a variety of metrics to measure progress against objectives. It is the responsibility of marketing managers to ensure that the execution of marketing programs achieves the desired objectives and does so in a cost-efficient manner.
This meant the Marketing Research Industry, again, needed to adapt to the rapidly changing needs of the marketplace, and to the demands of companies looking for a competitive edge. [citation needed] Today, marketing research has adapted to innovations in technology and the corresponding ease with which information is available.
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In environmental chemistry, the chemical oxygen demand (COD) is an indicative measure of the amount of oxygen that can be consumed by reactions in a measured solution.It is commonly expressed in mass of oxygen consumed over volume of solution, which in SI units is milligrams per liter (mg/L).
Among the keywords you can find in Connecticut law include "silly string," "balloons" and "arcade games." All these topics are involved in some of the state's strangest laws.