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  • BSI
    BS EN ISO 10634:2018 Water quality. Preparation and treatment of poorly water-soluble organic compounds for the subsequent evaluation of their biodegradability in an aqueous medium
    Edition: 2018
    $411.69
    / user per year

Description of BS EN ISO 10634:2018 2018

This document specifies techniques for preparing poorly water-soluble organic compounds (i.e. liquid and solid compounds) with a solubility in water of less than approximately 100 mg/l and introducing them into test vessels for a subsequent biodegradability test in an aqueous medium using standard methods.

The subsequent tests on biodegradability are primarily methods using the analysis of the released carbon dioxide described in ISO 9439 and the determination of the oxygen described in ISO 9408 and following the usual precautions for ISO 10707. Thus, one can notice that the methods measuring the removal of dissolved organic carbon (DOC) are not appropriate.

This document does not specify the biodegradation test methods. It is restricted to describing techniques for introducing the test compounds into the test medium and to keeping them in a dispersed state[4]. These techniques are implemented while observing the experimental conditions described in the standardized methods for evaluating biodegradability. ISO 9439, based on CO2 evolution, is not suitable for testing volatile compounds.

Some of the preparation methods described in this document might not be accepted by regulators for making conclusions on the ready biodegradability of tested compounds.

Examples of biodegradability curves are given in Annex A.



Standard NumberBS EN ISO 10634:2018
TitleWater quality. Preparation and treatment of poorly water-soluble organic compounds for the subsequent evaluation of their biodegradability in an aqueous medium
StatusDefinitive
Publication Date2018-12-12
ReplacesBS EN ISO 10634:1996
Identical National Standard OfISO 10634:2018, EN ISO 10634:2018
DescriptorsOrganic chemistry, Biodegradability, Water, Adsorption, Testing conditions, Dispersing (chemical technology), Specimen preparation, Water testing, Biological analysis and testing, Quality
ICS13.060.70 Examination of biological properties of water
CommitteeEH/3/5
ISBN978 0 580 94391 1
PublisherBSI
Pages24

The following editions for this book are also available...

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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