CEN - EN ISO 20227
Water quality - Determination of the growth inhibition effects of waste waters, natural waters and chemicals on the duckweed Spirodela polyrhiza - Method using a stock culture independent microbiotest
active, Most Current
| Organization: | CEN |
| Publication Date: | 1 July 2017 |
| Status: | active |
| Page Count: | 32 |
| ICS Code (Examination of biological properties of water): | 13.060.70 |
scope:
This document specifies 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.
The test is also applicable to pure chemicals and in particular, plant protection products and pesticides.
Document History
EN ISO 20227
July 1, 2017
Water quality - Determination of the growth inhibition effects of waste waters, natural waters and chemicals on the duckweed Spirodela polyrhiza - Method using a stock culture independent microbiotest
This document specifies 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...