ISO 9887:1992

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Water quality - Evaluation of the aerobic biodegradability of organic compounds in an aqueous medium - Semi-continuous activated sludge method (SCAS)

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ISO 9887:1992

Water quality - Evaluation of the aerobic biodegradability of organic compounds in an aqueous medium - Semi-continuous activated sludge method (SCAS)

PUBLISH DATE 1992
ISO 9887:1992

The method specified applies to organic compounds which are:

  • soluble,
  • non-volatile (or which have a negligible vapour pressure),
  • not lost by foaming from the test solution,
  • not significantly adsorbable on glass and activated sludge,
  • not inhibitory to the test microorganisms.

Its principle is comparison with the comparison of dissolved organic carbon in the effluent from a control unit.

Annex A gives examples of results of the test on various compounds, Annex B typical control values.

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