<p>ISO 20227:2017 specifies a method for the determination of the inhibition of the growth of the first fronds of <i>Spirodela polyrhiza</i> germinated from turions, by substances and mixtures contained in water or waste water, including treated municipal waste water and industrial effluents.</p>
<p>The test is also applicable to pure chemicals and in particular, plant protection products and pesticides.</p>
Registration number (WIID)
67326
Scope
<p>ISO 20227:2017 specifies a method for the determination of the inhibition of the growth of the first fronds of <i>Spirodela polyrhiza</i> germinated from turions, by substances and mixtures contained in water or waste water, including treated municipal waste water and industrial effluents.</p>
<p>The test is also applicable to pure chemicals and in particular, plant protection products and pesticides.</p>
