Cilësia e ujit - Përcaktimi i efekteve të frenimit të rritjes të ujërave të ndotur, ujërave natyror dhe kimikateve mbi algat Spirodela polyrhiza - Metoda duke përdorur një mikrobiotest me një kulturë të pavarur ISO 20227:2017)
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 (ISO 20227:2017)
ISO 20227:2017 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.
Life cycle
NOW
PUBLISHED SSH EN ISO 20227:2017 60.60
Standard published 23 jan 2018
English