Table of Contents

Foreword<br>Introduction<br>1 Scope<br>2 Normative references<br>3 Terms and definitions<br>4 Principle<br>5 Test organisms<br>6 Growth medium<br>7 Apparatus<br>8 Reference chemicals<br>9 Procedure<br>10 Data treatment - Calculation of the growth inhibition<br>11 Validity criterion<br>12 Test sensitivity<br>13 Test with reference chemicals<br>14 Test report<br>Annex A (informative) - Spirodela polyrhiza stock<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;culturing for turion production<br>Annex B (informative) - Sensitivity of the Spirodela<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;polyrhiza microbiotest<br>Annex C (informative) - Performance data<br>Bibliography

Abstract

Describes a method for the determination of the inhibition of the growth of the first fronds of Spirodela polyrhiza germinated from turions, by substances and mixtures contained in water or waste water, including treated municipal waste water and industrial effluents.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	International Organization for Standardization
Pages
ISBN
Committee	TC 147
Supersedes	ISO/DIS 20227 : 60.00 (2017)