NF EN ISO 20079

December 2006

Standard Current

Water quality - Determination of the toxic effect of water constituents and waste water on duckweed (Lemna minor) - Duckweed growth inhibition test

ISO 20079:2005 specifies a method for the determination of the growth-inhibiting response of duckweed (Lemna minor) to substances and mixtures contained in water, treated municipal wastewater and industrial effluents.

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Main informations

Collections

National standards and national normative documents

Publication date

December 2006

Number of pages

32 p.

Reference

NF EN ISO 20079

ICS Codes

13.060.70 Examination of biological properties of water

Classification index

T90-308

Print number

1 - 29/11/2006

International kinship

ISO 20079:2005

European kinship

EN ISO 20079:2006

Sumary

Water quality - Determination of the toxic effect of water constituents and waste water on duckweed (Lemna minor) - Duckweed growth inhibition test

Replaced standards (1)

XP T90-337

May 1996

Standard Cancelled

Testing water. Determination of the inhibitory effect on the growth of lemna minor.

Le présent document s'adresse aux laboratoires réalisant des essais écotoxicologiques dans le but d'évaluer les risques des produits chimiques pour l'environnement. Il est également applicable pour évaluer l'impact des pollutions dues aux eaux brutes ou aux effluents sur l'environnement.

Table of contents

Avant-propos
iv
Introduction
v
1 Domaine d'application
1
2 Références normatives
1
3 Termes et définitions
1
4 Principe
4
5 Interférences
4
6 Appareillage
4
7 Réactifs
5
8 Organismes d'essai
7
9 Cultures mères et précultures
7
10 Mode opératoire
8
11 Critères de validité
11
12 Expression des résultats
11
13 Estimation des valeurs de CE(r)x pour le nombre de frondes et pour le second paramètre observé
13
14 Report des résultats
13
15 Précision
13
16 Rapport d'essai
14
Annex A (informative) Préparation de milieux nutritifs
15
Annex B (informative) Mesurage de la dilution minimale sans effet (DIVISE) des eaux résiduaires - Évaluation simplifiée pour l'analyse des eaux résiduaires
20
Annex C (informative) Fournisseurs de l'espèce Lemna
23
Bibliographie
24

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