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UNE EN ISO 20227:2018
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 (ISO 20227:2017)
Calidad del agua. Determinación de los efectos de inhibición de las aguas residuales, aguas naturales y productos químicos sobre el crecimiento de la lenteja de agua Spirodela polyrhiza. Método utilizando un ensayo biológico miniaturizado independiente del cultivo madre. (ISO 20227:2017).
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| Standard number: | UNE EN ISO 20227:2018 |
| Pages: | 29 |
| Released: | 2018-02-28 |
| Status: | Standard |
| Pages (Spanish): | 33 |
DESCRIPTION
UNE EN ISO 20227:2018
This International Standard 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.