ISO 18749:2004
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Water quality — Adsorption of substances on activated sludge — Batch test using specific analytical methods
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03-02-2004
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ISO 18749:2004 specifies a screening test method for the determination of the degree of adsorption of substances on to the activated sludge or primary sludge in a waste water treatment plant.
The conditions described in this International Standard normally correspond to the optimum conditions for the adsorption to occur at the chosen activated-sludge concentration and water hardness during the test period.
The method applies to substances for which an analytical method with sufficient accuracy is available and which, under the conditions of the test and at the test concentration used,
- are water-soluble;
- or, if only slightly water-soluble, allow sufficiently stable suspensions, dispersions or emulsions to be prepared;
- are not significantly removed from the test solution during the test by known abiotic processes such as stripping or foaming;
- do not deflocculate activated sludge;
- are not readily biodegradable.
| Committee |
ISO/TC 147/SC 5
|
| DevelopmentNote |
Supersedes ISO/DIS 18749 (02/2004)
|
| DocumentType |
Standard
|
| Pages |
10
|
| PublisherName |
International Organization for Standardization
|
| Status |
Current
|
| Standards | Relationship |
| NEN ISO 18749 : 2004 | Identical |
| CEN ISO/TR 15462:2009 | Water quality - Selection of tests for biodegradability (ISO/TR 15462:2006) |
| PD CEN ISO/TR 15462:2009 | Water quality. Selection of tests for biodegradability |
| 02/565335 DC : DRAFT DEC 2002 | EN ISO 11733 - WATER QUALITY - EVALUATION OF THE ELIMINATION AND BIODEGRADABILITY OF ORGANIC COMPOUNDS IN AN AQUEOUS MEDIUM - ACTIVATED SLUDGE SIMULATION TEST |
| BS EN ISO 11733:2004 | Water quality. Determination of the elimination and biodegradability of organic compounds in an aqueous medium. Activated sludge simulation test |
| ISO 11733:2004 | Water quality — Determination of the elimination and biodegradability of organic compounds in an aqueous medium — Activated sludge simulation test |
| EN ISO 11733:2004 | Water quality - Determination of the elimination and biodegradability of organic compounds in an aqueous medium - Activated sludge simulation test (ISO 11733:2004) |
| S.R. CEN ISO TR 15462:2009 | WATER QUALITY - SELECTION OF TESTS FOR BIODEGRADABILITY |
| ISO/TR 15462:2006 | Water quality Selection of tests for biodegradability |
| DIN EN ISO 11733:2004-11 | Water quality - Determination of the elimination and biodegradability of organic compounds in an aqueous medium - Activated sludge simulation test (ISO 11733:2004) |
| ISO 11923:1997 | Water quality — Determination of suspended solids by filtration through glass-fibre filters |
| ISO 8245:1999 | Water quality Guidelines for the determination of total organic carbon (TOC) and 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 |
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