I.S. EN ISO 20227:2017
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 (ISO 20227:2017)
Hardcopy , PDF
English
01-01-2017
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
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National Foreword
European foreword
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Test organisms
6 Growth medium
7 Apparatus
8 Reference chemicals
9 Procedure
10 Data treatment - Calculation of the growth inhibition
11 Validity criterion
12 Test sensitivity
13 Test with reference chemicals
14 Test report
Annex A (informative) - Spirodela polyrhiza stock culturing
for turion production
Annex B (informative) - Sensitivity of the Spirodela polyrhiza
microbiotest
Annex C (informative) - Performance data
Bibliography
Defines 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.
| DocumentType |
Standard
|
| Pages |
38
|
| PublisherName |
National Standards Authority of Ireland
|
| Status |
Current
|
| Standards | Relationship |
| ISO 20227:2017 | Identical |
| EN ISO 20227:2017 | Identical |
| 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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