Norm

NEN-EN-ISO 9888:1997 Ontw. en

Water - Bepaling van de aerobe bio-afbreekbaarheid van organische componenten in een waterig medium - Statische proef (Zahn-Wellens methode)

  • Deze norm is ingetrokken sinds 24-06-1999

52,53

Over deze norm

Status Ingetrokken
Aantal pagina's 12
Gepubliceerd op 01-11-1997
Taal Engels
Specifies a method for the evaluation of the ultimate biodegradability and, as additional information, the primary biodegradability and the total elimination from water of organic compounds at a given concentration by aerobic micro-organisms. The conditions described in this standard normally correspond to optimal conditions for allowing the maximum value of biodegradation to occur with the chosen inoculum in the test time. These conditions may even be more favourable than in real waste water treatment plants, especially if their hydraulic retention time, sludge age or the adaptation of the activated sludge is not optimal.

Details

ICS-code 13.060.70
Nederlandse titel Water - Bepaling van de aerobe bio-afbreekbaarheid van organische componenten in een waterig medium - Statische proef (Zahn-Wellens methode)
Engelse titel Water quality - Evaluation of aerobic biodegradability of organic compounds in aqueous medium - Static test (Zahn-Wellens method)
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