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
Defines a method, by determination of the oxygen demand in a closed respirometer, for the evaluation in aqueous medium of the ultimate biodegradability of organic compounds and waste waters at a given concentration by aerobic microorganisms.
| DevelopmentNote |
Supersedes I.S. EN 29408. (04/2005)
|
| DocumentType |
Standard
|
| Pages |
28
|
| PublisherName |
National Standards Authority of Ireland
|
| Status |
Current
|
| Supersedes |
| Standards | Relationship |
| DIN EN ISO 9408:1999-12 | Identical |
| NF EN ISO 9408 : 1999 | Identical |
| EN ISO 9408:1999 | Identical |
| NEN EN ISO 9408 : 1999 | Identical |
| BS EN ISO 9408:1999 | Identical |
| NS EN ISO 9408 : 1ED 1999 | Identical |
| ISO 9408:1999 | Identical |
| NBN EN ISO 9408 : 1999 | Identical |
| UNE-EN ISO 9408:2000 | Identical |
| ISO 11923:1997 | Water quality — Determination of suspended solids by filtration through glass-fibre filters |
| ISO 9887:1992 | Water quality — Evaluation of the aerobic biodegradability of organic compounds in an aqueous medium — Semi-continuous activated sludge method (SCAS) |
| ISO 8245:1999 | Water quality — Guidelines for the determination of total organic carbon (TOC) and dissolved organic carbon (DOC) |
| ISO 6060:1989 | Water quality — Determination of the chemical oxygen demand |
| ISO 9888:1999 | Water quality — Evaluation of ultimate aerobic biodegradability of organic compounds in aqueous medium — Static test (Zahn-Wellens method) |
| ISO 7827:2010 | Water quality — Evaluation of the "ready", "ultimate" aerobic biodegradability of organic compounds in an aqueous medium — Method by analysis of dissolved organic carbon (DOC) |
| ISO/TR 15462:2006 | Water quality — Selection of tests for biodegradability |
| ISO 8192:2007 | Water quality — Test for inhibition of oxygen consumption by activated sludge for carbonaceous and ammonium oxidation |
| ISO 10634:1995 | Water quality — Guidance for the preparation and treatment of poorly water-soluble organic compounds for the subsequent evaluation of their biodegradability in an aqueous medium |
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