Ultimate biochemical oxygen demand

In this equation, if the incubation period is five days, the BOD is called the five-day biochemical oxygen demand, BOD5. It is understood that unless it is specified, BOD5 is a BOD measured at the standard temperature of incubation of 20°C. If incubation is done for a long period of time such as 20 to 30 days, it is assumed that all the BOD has been exerted. The BOD under this situation is the ultimate therefore, it is called ultimate BOD, or BOD . [Pg.150]

ISO 10707 (1994). Water quality - Evaluation in an aqueous medium of the ultimate biodegradability of organic compounds - Method by analysis of biochemical oxygen demand (closed bottle test)... [Pg.513]

ISO 10708 1997 Water quality—evaluation in aqueous medium of ultimate aerobic biodegradability of oiganic compounds determination of biochemical oxygen demand in a two-phase closed-bottle test... [Pg.287]

Ready Biodegradability Aerobic degradation of concentrated solution measured by change in dissolved organic carbon, biochemical oxygen demand, or carbon dioxide. "Pass/fail" test if substance meets criteria for success, it is expected to undergo rapid and ultimate biodegradation in the environment. [Pg.9]

ISO 10708 1997(E), Water Quality - Evaluation in an Aqueous Medium of the Ultimate Aerobic Biodegradability of Organic Compounds -Determination of Biochemical Oxygen Demand in a Two-phase Closed Bottle Test, International Organization for Standardization, Geneve, Switzerland, 1997. [Pg.21]

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