ISO 18749:2004

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

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.

Qualité de l'eau — Adsorption des substances sur la boue activée — Essai de lot utilisant des méthodes analytiques spécifiques

Kakovost vode - Adsorpcija snovi na aktivno blato - Šaržni preskus z uporabo specifičnih analitskih metod

Ta mednarodni standard določa metodo presejalnega preskusa za določevanje stopnje adsorpcije snovi na aktivno blato ali blato v prvotni obliki v čistilni napravi odpadne vode. Pogoji, opisni v tem mednarodnem standardu običajno ustrezajo optimalnim pogojem za adsorbcijo, do katere pride na izbrani koncentraciji aktivnega blata in trdnosti vode med preskusnim obdobjem. Metoda velja za snovi, za katere je na voljo analitska metoda z zadostno točnostjo in ki, pod preskusnimi pogoji in uporabljenimi preskusnimi koncentracijami, a) so topne v vodi; b) ali če so le nekoliko topne v vodi, omogočajo pripravo stabilnih suspenzij, disperzij ali emulzij; c) niso znatno odstranjene iz preskusne raztopine z poznanimi abiotičnimi procesi, kot so odstranjevanje ali  penjenja; d) ne razgradijo aktivnega blata v fine delce; e) niso lahko biorazgradljive (za razpravo o biorazgradljivosti glej ISO/TR 15462).

General Information

• Status: Published
• Publication Date: 02-Feb-2004
• ICS: 13.060.70 - Examination of biological properties of water
• Technical Committee: ISO/TC 147/SC 5 - Biological methods
• Drafting Committee: ISO/TC 147/SC 5 - Biological methods
• Current Stage: 9093 - International Standard confirmed
• Completion Date: 03-Jan-2024
• Ref Project: SIST ISO 18749:2010 - Water quality - Adsorption of substances on activated sludge - Batch test using specific analytical methods

Standards Content (Sample)

SLOVENSKI STANDARD
SIST ISO 18749:2010
01-september-2010
.DNRYRVWYRGH$GVRUSFLMDVQRYLQDDNWLYQREODWRâDUåQLSUHVNXV]XSRUDER
VSHFLILþQLKDQDOLWVNLKPHWRG
Water quality - Adsorption of substances on activated sludge - Batch test using specific
analytical methods
Qualité de l'eau - Adsorption des substances sur la boue activée - Essai de lot utilisant
des méthodes analytiques spécifiques
Ta slovenski standard je istoveten z: ISO 18749:2004
ICS:
13.030.20 7HNRþLRGSDGNL%ODWR Liquid wastes. Sludge
13.060.30 Odpadna voda Sewage water
SIST ISO 18749:2010 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------

SIST ISO 18749:2010

---------------------- Page: 2 ----------------------

SIST ISO 18749:2010
INTERNATIONAL ISO
STANDARD 18749
First edition
2004-02-15
Water quality — Adsorption of
substances on activated sludge — Batch
test using specific analytical methods
Qualité de l'eau — Adsorption des substances sur la boue activée —
Essai de lot utilisant des méthodes analytiques spécifiques

Reference number
ISO 18749:2004(E)
©
ISO 2004

---------------------- Page: 3 ----------------------

SIST ISO 18749:2010
ISO 18749:2004(E)
PDF disclaimer
This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall
not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In
downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat
accepts no liability in this area.
Adobe is a trademark of Adobe Systems Incorporated.
Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation
parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the
unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below.
© ISO 2004
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or
ISO's member body in the country of the requester.
ISO copyright office
Case postale 56  CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail [e-mail]
Web www.iso.org
Published in Switzerland
©
ii ISO 2004 – All rights reserved

---------------------- Page: 4 ----------------------

SIST ISO 18749:2010
ISO 18749:2004(E)
Contents Page
1 Scope . 1
2 Terms and definitions . 1
3 Principle . 2
4 Reagents and materials . 2
5 Apparatus . 4
6 Test environment . 5
7 Procedure . 5
8 Calculation . 7
9 Validity of the test . 9
10 Test report . 9
Bibliography . 10
©
ISO 2004 – All rights reserved iii

---------------------- Page: 5 ----------------------

SIST ISO 18749:2010
ISO 18749:2004(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a t
...

INTERNATIONAL ISO
STANDARD 18749
First edition
2004-02-15
Water quality — Adsorption of
substances on activated sludge — Batch
test using specific analytical methods
Qualité de l'eau — Adsorption des substances sur la boue activée —
Essai de lot utilisant des méthodes analytiques spécifiques

Reference number
ISO 18749:2004(E)
©
ISO 2004

---------------------- Page: 1 ----------------------
ISO 18749:2004(E)
PDF disclaimer
This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall
not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In
downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat
accepts no liability in this area.
Adobe is a trademark of Adobe Systems Incorporated.
Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation
parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the
unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below.
© ISO 2004
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or
ISO's member body in the country of the requester.
ISO copyright office
Case postale 56  CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail [e-mail]
Web www.iso.org
Published in Switzerland
©
ii ISO 2004 – All rights reserved

---------------------- Page: 2 ----------------------
ISO 18749:2004(E)
Contents Page
1 Scope . 1
2 Terms and definitions . 1
3 Principle . 2
4 Reagents and materials . 2
5 Apparatus . 4
6 Test environment . 5
7 Procedure . 5
8 Calculation . 7
9 Validity of the test . 9
10 Test report . 9
Bibliography . 10
©
ISO 2004 – All rights reserved iii

---------------------- Page: 3 ----------------------
ISO 18749:2004(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International
Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for i
...