ISO 20227:2017现行
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
出版：International Organization for Standardization
专家解读视频
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.
BS EN ISO 20227 : 2017 - Identical
DS EN ISO 20227 : 2017 - Identical
DIN EN ISO 20227 E : 2017 - Identical
UNE EN ISO 20227 : 2018 - Identical
NEN EN ISO 20227 : 2017 - Identical
SN EN ISO 20227 : 2017 - Identical
PN EN ISO 20227 : 2017 - Identical
I.S. EN ISO 20227:2017 - Identical
UNI EN ISO 20227 : 2017 - Identical
NS EN ISO 20227 : 2017 - Identical
NF EN ISO 20227 : 2017 - Identical
DIN EN ISO 20227 : 2016 - Identical
