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DIN EN ISO 20227 E : 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 (ISO 20227:2017)

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-01-2017

National foreword
National Annex NA (informative) - Bibliography
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

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.

DocumentType
Standard
Pages
27
PublisherName
German Institute for Standardisation (Deutsches Institut für Normung)
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
DIN ISO 5725-2:2002-12 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 5725-2:1994 including Technical Corrigendum 1:2002)
ISO 20079:2005 Water quality Determination of the toxic effect of water constituents and waste water on duckweed (Lemna minor) Duckweed growth inhibition test
DIN EN ISO 20079 E : 2006 WATER QUALITY - DETERMINATION OF THE TOXIC EFFECT OF WATER CONSTITUENTS AND WASTE WATER ON DUCKWEED (LEMNA MINOR) - DUCKWEED GROWTH INHIBITION TEST
DIN EN ISO 5667-16 E : 1999 WATER QUALITY - SAMPLING - PART 16: GUIDANCE ON BIOTESTING OF SAMPLES
DIN ISO 5725-1:1997-11 ACCURACY (TRUENESS AND PRECISION) OF MEASUREMENT METHODS AND RESULTS - PART 1: GENERAL PRINCIPLES AND DEFINITIONS
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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