Norm

NEN-EN-ISO 11733:2003 Ontw. en

Water - Bepaling van de totale verwijdering en bio-afbreekbaarheid van organische verbindingen in een waterig medium - Simulatieproef met actief slib

  • Deze norm is ingetrokken sinds 01-08-2004

31,83

Over deze norm

Status Ingetrokken
Aantal pagina's 30
Gepubliceerd op 01-02-2003
Taal Engels
This International Standard specifies a method for the determination of the elimination and the biodegradability of organic compounds by aerobic micro-organisms. The conditions described simulate a waste water treatment plant. Two test systems can be used, activated sludge plants or porous pots. The tests can optionally be performed under conditions of nitrification and denitrification (annex B) and coupling of the units (annex D). The method applies to organic compounds that under the conditions of the test are: a) water-soluble at the concentration used under the test conditions and not expected to be transformed to insoluble metabolites if biodegradation and not elimination only shall be determined; b) poorly water-soluble but which are satisfactorily dispersable in water and allow detection with suitable analytical means (e.g. organic carbon measurements); c) non-volatile, or which have a negligible vapour pressure under the test conditions; d) not inhibitory to the test micro-organisms at the concentration chosen for the test. Inhibitory effects can be determined by using a suitable test method (e.g. see ISO 8192 or ISO 15522). The method can also be used to measure the biodegradation and elimination of dissolved organic compounds in waste water (also called "test compound" in the method). If more or different information is required to predict the behaviour of test compounds or waste water in a treatment plant, other degradation tests may be performed. For appropriate use of this method and for alternative biodegradation methods see ISO 15462 and for general information on biotesting see ISO 5667-16.

Details

ICS-code 13.060.70
Nederlandse titel Water - Bepaling van de totale verwijdering en bio-afbreekbaarheid van organische verbindingen in een waterig medium - Simulatieproef met actief slib
Engelse titel Water quality - Evaluation of the elimination and biodegradability of organic compounds in an aqueous medium - Activated sludge simulation test
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