NF EN ISO 8192

NF EN ISO 8192

April 2007
Standard Current

Water quality - Test for inhibition of oxygen consumption by activated sludge for carbonaceous and ammonium oxidation

ISO 8192:2007 specifies a method for assessing the inhibitory effect of a test material on the oxygen consumption of activated sludge microorganisms. This method is intended to represent the conditions in biological waste-water treatment plants. It gives information on inhibitory or stimulatory effects after a short exposure (usually 30 min up to 180 min or even more ) of the test material on activated sludge microorganisms. This method is applicable for testing waters, waste waters, pure chemicals and mixtures of chemicals. Concerning the chemicals, the method refers to those which are soluble under the test conditions. Special care is necessary with materials of low water solubility or high volatility, and with materials abiotically consuming or producing oxygen.

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Main informations

Collections

National standards and national normative documents

Publication date

April 2007

Number of pages

30 p.

Reference

NF EN ISO 8192

ICS Codes

13.020.40   Pollution, pollution control and conservation
13.030.20   Liquid wastes. Sludge
13.060.70   Examination of biological properties of water

Classification index

T90-340

Print number

1 - 26/03/2007

International kinship

ISO 8192:2007

European kinship

EN ISO 8192:2007
Sumary
Water quality - Test for inhibition of oxygen consumption by activated sludge for carbonaceous and ammonium oxidation

ISO 8192:2007 specifies a method for assessing the inhibitory effect of a test material on the oxygen consumption of activated sludge microorganisms.

This method is intended to represent the conditions in biological waste-water treatment plants. It gives information on inhibitory or stimulatory effects after a short exposure (usually 30 min up to 180 min or even more ) of the test material on activated sludge microorganisms.

This method is applicable for testing waters, waste waters, pure chemicals and mixtures of chemicals. Concerning the chemicals, the method refers to those which are soluble under the test conditions. Special care is necessary with materials of low water solubility or high volatility, and with materials abiotically consuming or producing oxygen.

Replaced standards (1)
NF EN ISO 8192
April 1995
Standard Cancelled
Water quality. Test for the inhibition of oxygen consumption by activated sludge.

Table of contents
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  • Avant-propos
    iv
  • Introduction
    v
  • 1 Domaine d'application
    1
  • 2 Références normatives
    1
  • 3 Termes et définitions
    1
  • 4 Principe
    3
  • 5 Réactifs, milieux et inoculum
    3
  • 6 Appareils
    4
  • 7 Environnement de l'essai
    5
  • 8 Mode opératoire
    5
  • 9 Calcul et expression des résultats
    9
  • 10 Validité des résultats
    12
  • 11 Rapport d'essai
    14
  • Annexe A (informative) Exemples d'unités de mesurage
    15
  • Annexe B (informative) Appareillage pour cultiver de la boue activée nitrifiante
    17
  • Annexe C (informative) Vue d'ensemble du mode opératoire d'essai
    19
  • Annexe D (informative) Mélanges pour l'essai préliminaire
    20
  • Annexe E (informative) Exemple de courbes d'inhibition
    21
  • Bibliographie
    22
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