Water quality. Determination of chronic toxicity to Ceriodaphnia dubia

BS ISO 20665:2008 Water quality. Determination of chronic toxicity to Ceriodaphnia dubia

BS ISO 20665 specifies a method for the determination of the chronic toxicity to Ceriodaphnia dubia (Cladocera, Crustacea), based on reproduction inhibition.

The method specified in BS ISO 20665 applies to:

a) chemical substances which are soluble or which can be maintained as stable suspensions or dispersions

under the conditions of the test;

b) industrial or sewage effluents, if appropriate after decantation, filtration or centrifugation;

c) fresh waters;

d) aqueous extracts.

Contents of BS ISO 20665:

Foreword

Introduction

Scope

Normative references

Terms and definitions

Principle

Test environment

Reagents, test organisms and media

Apparatus

Sampling and samples

Procedure

Expression of results

Validity criteria

Precision

Test report

Preparation of the ELENDT M4 medium

Preparation of the moderately hard water medium

Preparation of the LC OLIGO medium

Procedure for preparing YCT

Data collection sheet

Bibliography