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ISO 20227:2017

Current
Current

The latest, up-to-date edition.

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
Available format(s)

Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users

Language(s)

English, French

Published date

06-15-2017

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.

DevelopmentNote
Supersedes ISO/DIS 20227. (06/2017)
DocumentType
Standard
Pages
20
PublisherName
International Organization for Standardization
Status
Current

ISO 5725-1:1994 Accuracy (trueness and precision) of measurement methods and results — Part 1: General principles and definitions
ISO 20079:2005 Water quality Determination of the toxic effect of water constituents and waste water on duckweed (Lemna minor) Duckweed growth inhibition test
NFT 90 337 : 96 XP TESTING WATER - DETERMINATION OF THE INHIBITORY EFFECT ON THE GROWTH OF LEMNA MINOR
ISO 5725-2:1994 Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method
ISO/TS 20281:2006 Water quality — Guidance on statistical interpretation of ecotoxicity data
ISO 19827:2016 Water quality Determination of the acute toxicity to the freshwater rotifer Brachionus calyciflorus
ISO 5667-16:2017 Water quality — Sampling — Part 16: Guidance on biotesting of samples

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