Name: ISO 18749:2004
Brand: ISO

Water quality — Adsorption of substances on activated sludge — Batch test using specific analytical methods

Available format(s)

PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users

Language(s)

English

Published date

03-02-2004

Publisher

International Organization for Standardization

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
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