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ISO 14593:1999
M00002158
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ISO 14593:1999 Water quality -- Evaluation of ultimate aerobic biodegradability of organic compounds in aqueous medium -- Method by analysis of inorganic carbon in sealed vessels (CO2 headspace test)
standard by International Organization for Standardization, 03/01/1999
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This International Standard specifies a method, by analysis of inorganic carbon, for the evaluation in an aqueous medium of the ultimate aerobic biodegradability of organic substances at a given concentration of microorganisms.
This International Standard is applicable to organic compounds which are:
water-soluble under the test conditions;poorly water-soluble under the test conditions, in which case special measures may be necessary to achieve a good dispersion of the compound (see ISO 10634);volatile;not inhibitory to the test microorganisms at the concentration chosen for the test.In this test, biogenically produced inorganic carbon is measured in situ in the test vessels in such a manner that the rate measured nearly equals the rate of microbial production.