I.S. EN ISO 9408:1999
Current
The latest, up-to-date edition.
WATER QUALITY - EVALUATION OF ULTIMATE AEROBIC BIODEGRADABILITY OF ORGANIC COMPOUNDS IN AQUEOUS MEDIUM BY DETERMINATION OF OXYGEN DEMAND IN A CLOSED RESPIROMETER
Hardcopy , PDF
English
01-01-1999
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
Dates of withdrawal of national standards are available from NSAI.
Foreword
1 Scope
2 Terms and definitions
3 Principle
4 Test environment
5 Reagents
6 Apparatus
7 Procedure
8 Calculation and expression of results
9 Validity of results
10 Test report
Annex A (informative) Example of calculation of theoretical
oxygen demand
Annex B (informative) Correction of oxygen uptake for
interference by nitrification
Annex C (informative) Example of a biodegradation curve
Annex D (informative) Closed respirometer
Bibliography
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