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  • BSI
    21/30413954 DC BS ISO 23196. Water quality. Calculation of biological equivalence (BEQ) concentrations
    Edition: 2021
    $44.80
    / user per year

Description of 21/30413954 DC 2021

This document specifies the derivation of biological equivalence (BEQ) concentrations for results of in vitro bioassays which are based on measuring effects on a biological process such as enzyme induction or cellular growth. The concept described here can be used for any biological assay after the proof of its applicability.

To derive BEQ concentrations the effect on a biological process caused by a sample – i.e. the activity of the sample – is expressed in terms of a concentration of a reference compound which results in an equivalent effect on the process. BEQ concentrations can be derived for environmental water samples, extracts of environmental water samples including tap water or solutions of pure chemicals or mixtures of chemicals.

NOTE

The term ‘sample’ used in this document addresses environmental samples as well as defined mixtures and pure compounds used as test item in a bioassay.



Standard Number21/30413954 DC
TitleBS ISO 23196. Water quality. Calculation of biological equivalence (BEQ) concentrations
StatusDefinitive
Publication Date2021-02-22
Identical National Standard OfISO/DIS 23196
DescriptorsBiological water pollutants, Reaction time (biological), Biological analysis and testing, Water treatment, Water purification
ICS13.060.70 Examination of biological properties of water
CommitteeEH/3/5
PublisherBSI
Pages23



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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