Carbonaceous biochemical oxygen demand (CBOD), the amount of oxygen needed to break down carbon compounds, excluding nitrogen compounds
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Chemical oxygen demand (COD), a test commonly used to indirectly measure the amount of organic compounds in a water sample
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Biochemical oxygen demand (BOD), the amount of oxygen needed by organisms to break down organic material present in a water sample
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Theoretical oxygen demand (ThOD), the calculated amount of oxygen required to oxidize a compound to its final oxidation products
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