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CEN - EN ISO 7827

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

active, Most Current
Organization: CEN
Publication Date: 1 December 2012
Status: active
Page Count: 22
ICS Code (Examination of biological properties of water): 13.060.70
scope:

This International Standard specifies a method for the evaluation of the "ready" and "ultimate" biodegradability of organic compounds at a given range of concentrations by aerobic microorganisms. In this context, this International Standard also gives specific definitions for the terms "ready" and "ultimate".

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.

Document History

EN ISO 7827
December 1, 2012
Water quality - Evaluation of the "ready", "ultimate" aerobic biodegradability of organic compounds in an aqueous medium - Method by analysis of dissolved organic carbon (DOC)
This International Standard specifies a method for the evaluation of the "ready" and "ultimate" biodegradability of organic compounds at a given range of concentrations by aerobic microorganisms. In...
December 1, 1995
Water Quality - Evaluation in an Aqueous Medium of the ┬┤Ultimate┬┤ Aerobic Biodegradability of Organic Compounds - Method by Analysis of Dissolved Organic Carbon (DOC)
A description is not available for this item.

References

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