Norme internationale
ISO 13641-2:2003
Qualité de l'eau — Détermination de l'inhibition de la production de gaz des bactéries anaérobies — Partie 2: Essai à de faibles concentrations de biomasse
Numéro de référence
ISO 13641-2:2003
Edition 1
2003-05
Norme internationale
Prévisualiser
ISO 13641-2:2003
36231
Indisponible en français
Publiée (Edition 1, 2003)
Cette norme a été révisée et confirmée pour la dernière fois en 2019. Cette édition reste donc d’actualité.

ISO 13641-2:2003

ISO 13641-2:2003
36231
Langue
Format
CHF 96
Convertir les francs suisses (CHF) dans une autre devise

Résumé

ISO 13641-2:2003 specifies a screening method for assessing the potential toxicity of substances, mixtures, surface waters, groundwaters and wastewaters, effluents, sludges, or other environmental samples by determining the production of biogas (carbon dioxide and methane) from muds, sediments and other anaerobic environments with low biomass concentration. The growth rate of anaerobic bacteria is much lower, compared with that of aerobic microorganisms. For this reason, the test periods in anaerobic methods are longer than in those with aerobic bacteria. The conditions of this test (for example amount of inoculum and substrate in the test bottles) were adopted to a defined test period over several days. The inoculum can be collected from anaerobic sediments or from large, or laboratory scale, anaerobic digesters.

This method is applicable to materials, soluble or insoluble in water, including volatile chemicals.

Note that special care is necessary with compounds of low water-solubility, and in these cases, other methods might be more suitable.

Information obtained by this method may be helpful prior to anaerobic biodegradability testing with low inoculum mass concentrations and for estimations of the potential effects of chemicals and wastewater to anaerobic processes in habitats characterized by a relatively low anaerobic biomass, for example natural sediments and soils.

Informations générales

  •  : Publiée
     : 2003-05
    : Norme internationale confirmée [90.93]
  •  : 1
  • ISO/TC 147/SC 5
    13.060.70 
  • RSS mises à jour

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