16/30331690 DC : 0

Superseded

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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

Available format(s)

Hardcopy , PDF

Superseded date

08-31-2017

Language(s)

English

Publisher

British Standards Institution

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Status	Superseded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	BS EN ISO 20227:2017

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