ISO 7827:2010

Current Revision
Water quality - Evaluation of the ready, ultimate aerobic biodegradability of organic compounds in an aqueous medium - Method by analysis of dissolved organic carbon (DOC)

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ISO 7827:2010

Water quality - Evaluation of the ready, ultimate aerobic biodegradability of organic compounds in an aqueous medium - Method by analysis of dissolved organic carbon (DOC)

PUBLISH DATE 2010
ISO 7827:2010

ISO 7827:2010 specifies a method for the evaluation of the β€œready” and β€œultimate” biodegradability of organic compounds at a given range of concentrations by aerobic microorganisms. In this context, ISO 7827:2010 also gives specific definitions for the terms β€œready” and β€œultimate”.

The method applies to organic compounds which are:

  • a) soluble at the concentration used under the conditions of the test [dissolved organic carbon (DOC) concentrations of 10 mg/l to 40 mg/l];
  • b) non-volatile or having a negligible vapour pressure under the conditions of the test;
  • c) not significantly adsorbable on glass and activated sludge;
  • d) not inhibitory to the test microorganisms at the concentration chosen for the test.

The method is not suitable for waste waters, as they usually contain significant amounts of water-insoluble organic carbon, which is not included in DOC measurements.

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