ISO 23196:2022
ISO 23196:2022 Water quality – Calculation of biological equivalence (BEQ) concentrations
CDN $193.00
Description
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¬†‚Äì i.e. the activity of the sample¬†‚Äì is expressed in terms of a concentration of a reference compound which results in an equivalent effect on the process. 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. 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.
Edition
1
Published Date
2022-02-07
Status
PUBLISHED
Pages
18
Language
English
Format
Secure PDF
Secure – PDF details
- Save your file locally or view it via a web viewer
- Viewing permissions are restricted exclusively to the purchaser
- Device limits - 3
- Printing – Enabled only to print (1) copy
See more about our Environmental Commitment
Abstract
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. 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. 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.
Previous Editions
Can’t find what you are looking for?
Please contact us at:
Related Documents
-
ISO 18220:2016 Water quality – Larval development test with the harpacticoid copepod Nitocra spinipes
CDN $261.00 Add to cart -
ISO 16665:2014 Water quality – Guidelines for quantitative sampling and sample processing of marine soft-bottom macrofauna
CDN $307.00 Add to cart -
ISO 10253:2024 Water quality – Marine algal growth inhibition test with Skeletonema sp. and Phaeodactylum tricornutum
CDN $261.00 Add to cart -
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
CDN $193.00 Add to cart
