16/30331690 DC : 0
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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BS EN ISO 20227 - 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
Hardcopy , PDF
31-08-2017
English
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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
BS EN ISO 20227.
| Committee |
EH/3/5
|
| DocumentType |
Draft
|
| Pages |
31
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy |
| 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 5667-16:2017 | Water quality — Sampling — Part 16: Guidance on biotesting of samples |
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