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BS ISO 20079 : 2005 AMD 17054

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

WATER QUALITY - DETERMINATION OF THE TOXIC EFFECT OF WATER CONSTITUENTS AND WASTE WATER ON DUCKWEED (LEMNA MINOR) - DUCKWEED GROWTH INHIBITION TEST
Superseded date

03-30-2007

Published date

11-23-2012

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Interferences
6 Apparatus
7 Reagents
8 Test organisms
9 Stock cultures and pre-cultures
10 Procedure
11 Validity criteria
12 Expression of results
13 Estimation of EC(r)[x] values for frond number and the
   second observation parameter
14 Documentation of results
15 Precision
16 Test report
Annex A (informative) Preparation of the nutrient media
Annex B (informative) Measurement of the lowest ineffective
                      dilution (LID) of a waste water -
                      A simplified evaluation for testing of
                      waste water
Annex C (informative) Suppliers of Lemna species
Bibliography

Provides a method for the determination of the growth-inhibiting response of duckweed (Lemna minor) to substances and mixtures contained in water, treated municipal wastewater and industrial effluents.

Committee
EH/3/5
DevelopmentNote
Supersedes 03/315968 DC. (01/2006) Renumbered and superseded by BS EN ISO 20079. (03/2007)
DocumentType
Standard
PublisherName
British Standards Institution
Status
Superseded
SupersededBy
Supersedes

Standards Relationship
ISO 20079:2005 Identical

ISO/IEC 17025:2005 General requirements for the competence of testing and calibration laboratories
NFT 90 337 : 96 XP TESTING WATER - DETERMINATION OF THE INHIBITORY EFFECT ON THE GROWTH OF LEMNA MINOR
ISO 5667-16:2017 Water quality — Sampling — Part 16: Guidance on biotesting of samples
ISO 10260:1992 Water quality — Measurement of biochemical parameters — Spectrometric determination of the chlorophyll-a concentration

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