ISO 13641-1:2003..
ISO 13829:2000
ISO 14371:2012
ISO 14442:2006-ed.2...
ISO 14592-1:2002..
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ISO 13641-2:2003
Water quality — Determination of inhibition of gas production of anaerobic bacteria — Part 2: Test for low biomass concentrations
Automatically translated name:
Water quality -- Determination of inhibition of gas production of anaerobic bacteria -- Part 2: Test for low biomass concentrations
STANDARD published on 26.5.2003
The information about the standard:
Designation standards: ISO 13641-2:2003
Publication date standards: 26.5.2003
SKU: NS-424846
The number of pages: 13
Approximate weight : 39 g (0.09 lbs)
Country: International technical standard
Category: Technical standards ISO
The category - similar standards:
Annotation of standard text ISO 13641-2:2003 :
Description / Abstract: 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.
Similar standards:
26.5.2003
30.3.2000
6.3.2012
10.11.2011
29.3.2006
19.11.2002
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