Water quality — Determination of adsorbable organically bound fluorine, chlorine, bromine and iodine (AOF, AOCl, AOBr, AOI) — Method using combustion and subsequent ion chromatographic measurement

Qualité de l’eau — Dosage des composés organiques adsorbables contenant du fluor, du chlore, du brome et de l’iode (AOF, AOCl, AOBr, AOI) — Méthode de combustion suivie d’un mesurage par chromatographie ionique

General Information

Status
Not Published
Current Stage
5020 - FDIS ballot initiated: 2 months. Proof sent to secretariat
Start Date
04-Sep-2025
Completion Date
04-Sep-2025
Ref Project
Draft
ISO/FDIS 18127 - Water quality — Determination of adsorbable organically bound fluorine, chlorine, bromine and iodine (AOF, AOCl, AOBr, AOI) — Method using combustion and subsequent ion chromatographic measurement Released:21. 08. 2025
English language
45 pages
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Draft
REDLINE ISO/FDIS 18127 - Water quality — Determination of adsorbable organically bound fluorine, chlorine, bromine and iodine (AOF, AOCl, AOBr, AOI) — Method using combustion and subsequent ion chromatographic measurement Released:21. 08. 2025
English language
45 pages
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Draft
ISO/FDIS 18127 - Qualité de l’eau — Dosage des composés organiques adsorbables contenant du fluor, du chlore, du brome et de l’iode (AOF, AOCl, AOBr, AOI) — Méthode de combustion suivie d’un mesurage par chromatographie ionique Released:17. 09. 2025
French language
48 pages
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Standards Content (Sample)


FINAL DRAFT
International
Standard
ISO/TC 147/SC 2
Water quality — Determination
Secretariat: DIN
of adsorbable organically bound
Voting begins on:
fluorine, chlorine, bromine and
2025-09-04
iodine (AOF, AOCl, AOBr, AOI) —
Voting terminates on:
Method using combustion and
2025-10-30
subsequent ion chromatographic
measurement
Qualité de l’eau — Dosage des composés organiques adsorbables
contenant du fluor, du chlore, du brome et de l’iode (AOF, AOCl,
AOBr, AOI) — Méthode de combustion suivie d’un mesurage par
chromatographie ionique
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT,
WITH THEIR COMMENTS, NOTIFICATION OF ANY
RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE
AND TO PROVIDE SUPPOR TING DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO­
ISO/CEN PARALLEL PROCESSING LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
Reference number
FINAL DRAFT
International
Standard
ISO/TC 147/SC 2
Water quality — Determination
Secretariat: DIN
of adsorbable organically bound
Voting begins on:
fluorine, chlorine, bromine and
iodine (AOF, AOCl, AOBr, AOI) —
Voting terminates on:
Method using combustion and
subsequent ion chromatographic
measurement
Qualité de l’eau — Dosage des composés organiques adsorbables
contenant du fluor, du chlore, du brome et de l’iode (AOF, AOCl,
AOBr, AOI) — Méthode de combustion suivie d’un mesurage par
chromatographie ionique
RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT,
WITH THEIR COMMENTS, NOTIFICATION OF ANY
RELEVANT PATENT RIGHTS OF WHICH THEY ARE AWARE
AND TO PROVIDE SUPPOR TING DOCUMENTATION.
© ISO 2025
IN ADDITION TO THEIR EVALUATION AS
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO­
ISO/CEN PARALLEL PROCESSING
LOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL
or ISO’s member body in the country of the requester.
TO BECOME STAN DARDS TO WHICH REFERENCE MAY BE
MADE IN NATIONAL REGULATIONS.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland Reference number
ii
Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Interferences . 3
4.1 Interference during adsorption .3
4.2 Interferences during combustion .3
4.3 Interferences during ion chromatography .3
5 Principle . 3
6 Reagents . 4
7 Apparatus and materials . 8
8 Sampling and sample preparation .11
8.1 General .11
8.2 Sampling for the AOF determination . 12
8.3 Sampling for the AOCl-, AOBr- and AOI determination . 12
8.4 Further procedure of sample preparation . 12
8.4.1 AOF determination . 12
8.4.2 AOCl, AOBr and AOI determination. 12
9 Procedure .12
9.1 Preliminary test . 12
9.2 Homogenization. 13
9.3 Sample preparation . 13
9.3.1 General . 13
9.3.2 Test sample for the AOF determination . 13
9.3.3 Test samples for the AOCl, AOBr and AOI determination . 13
9.4 Adsorption on activated carbon . 13
9.4.1 Adsorption procedure . 13
9.4.2 Washing of the activated carbon for the AOF determination .14
9.4.3 Washing of the activated carbon for the AOCl, AOBr, AOI determination .14
9.5 Additional procedure for samples containing suspended solids .14
9.6 Blank determination .14
9.6.1 AOF blank determination .14
9.6.2 AOCl, AOBr and AOI blank determination .14
9.7 Operation of the ion chromatography system . 15
9.7.1 General . 15
9.7.2 Calibration . . . 15
9.7.3 Checking the ion chromatography . 15
9.8 Combustion and absorption . 15
9.9 Measurement of the absorption solution . 15
10 Validation of the overall procedure . .16
10.1 Initial check .16
10.2 Daily check .16
10.3 Test to determine the completeness of the adsorption .16
11 Selection of usable analytical results .16
12 Calculation .16
13 Expression of the results .18
14 Test report .18

iii
Annex A (normative) Determination of adsorbable organically bound fluorine (AOF) . 19
Annex B (normative) Determination of adsorbable organically bound chlorine (AOCl) .22
Annex C (normative) Determination of adsorbable organically bound bromine (AOBr) .25
Annex D (normative) Determination of the adsorbable organically bound iodine (AOI) .29
Annex E (informative) Determination of adsorbable organically bound fluorine, chlorine,
bromine and iodine using the shaking procedure (SH-AOF, SH-AOCl, SH-AOBr and SH-
AOI) .32
Annex F (informative) Determination of adsorbable organically bound fluorine, chlorine,
bromine and iodine in waters with high halide contents after solid phase extraction
(SPE-AOF, SPE-AOCl, SPE-AOBr, SPE-AOI) .35
Annex G (normative) Test to determine the completeness of the adsorption by individual
combustion of the activated carbons from the multiple determinations and separate
absorption .38
Annex H (normative) Test to determine the completeness of the adsorption by common
combustion of the activated carbons from different dilution levels .39
Annex I (normative) Test to determine the completeness of the adsorption by adsorption on
columns connected in series with different quantities of adsorption columns .40
Annex J (normative) Calculation of the CIC-AOX from the AOCl, AOBr and AOI results added
(Cl)
according to Annex B, Annex C and Annex D.
...


ISO/TC 147/SC 2
Secretariat: DIN
Date: 2025-04-2508-20
Water quality — Determination of adsorbable organically bound
fluorine, chlorine, bromine and iodine (AOF, AOCl, AOBr, AOI) —
Method using combustion and subsequent ion chromatographic
measurement
Qualité de l'eaul’eau — Dosage des composés organiques adsorbables contenant du fluor, du chlore, du brome
et de l'iode adsorbables liés organiquementl’iode (AOF, AOCl, AOBr, AOI) — Méthode en utilisant lade
combustion et la mesure ultérieuresuivie d’un mesurage par chromatographie ionique
FDIS stage
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication
may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying,
or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO
at the address below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: + 41 22 749 01 11
EmailE-mail: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
Contents
Foreword . v
Introduction . vi
1 Scope . 1
2 Normative references . 2
3 Terms and definitions . 2
4 Interferences . 3
4.1 Interference during adsorption . 3
4.2 Interferences during combustion . 4
4.3 Interferences during ion chromatography . 4
5 Principle . 4
6 Reagents . 5
7 Apparatus and materials . 9
8 Sampling and sample preparation . 14
8.1 General. 14
8.2 Sampling for the AOF determination . 14
8.3 Sampling for the AOCl-, AOBr- and AOI determination . 15
8.4 Further procedure of sample preparation . 15
9 Procedure . 15
9.1 Preliminary test . 15
9.2 Homogenization . 15
9.3 Sample preparation . 16
9.4 Adsorption on activated carbon . 16
9.5 Additional procedure for samples containing suspended solids . 17
9.6 Blank determination . 17
9.7 Operation of the ion chromatography system. 18
9.8 Combustion and absorption . 18
9.9 Measurement of the absorption solution . 19
10 Validation of the overall procedure . 19
10.1 Initial check . 19
10.2 Daily check . 19
10.3 Test to determine the completeness of the adsorption . 19
11 Selection of usable analytical results . 20
12 Calculation . 20
13 Expression of the results . 22
14 Test report . 22
Annex A (normative) Determination of adsorbable organically bound fluorine (AOF) . 23
Annex B (normative) Determination of adsorbable organically bound chlorine (AOCl) . 26
Annex C (normative) Determination of adsorbable organically bound bromine (AOBr) . 29
Annex D (normative) Determination of the adsorbable organically bound iodine (AOI) . 33
Annex E (informative) Determination of adsorbable organically bound fluorine, chlorine,
bromine and iodine using the shaking procedure (SH-AOF, SH-AOCl, SH-AOBr and SH-
AOI) . 37
iii
Annex F (informative) Determination of adsorbable organically bound fluorine, chlorine,
bromine and iodine in waters with high halide contents after solid phase extraction
(SPE-AOF, SPE-AOCl, SPE-AOBr, SPE-AOI) . 40
Annex G (normative) Test to determine the completeness of the adsorption by individual
combustion of the activated carbons from the multiple determinations and separate
absorption . 44
Annex H (normative) Test to determine the completeness of the adsorption by common
combustion of the activated carbons from different dilution levels . 45
Annex I (normative) Test to determine the completeness of the adsorption by adsorption on
columns connected in series with different quantities of adsorption columns . 46
Annex J (normative) Calculation of the CIC-AOX from the AOCl, AOBr and AOI results added
(Cl)
according to Annex B, Annex C and Annex D . 47
Annex K (informative) Performance data . 48
Bibliography . 50

iv
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.
The procedures used to develop this document and those intended for its further maintenance are described
in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the different types of
ISO documentsdocument should be noted. This document was drafted in accordance with the editorial rules
of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawnISO draws attention to the possibility that some of the elementsimplementation of this
document may beinvolve the subjectuse of (a) patent(s). ISO takes no position concerning the evidence,
validity or applicability of any claimed patent rights in respect thereof. As of the date of publication of this
document, ISO had not received notice of (a) patent(s) which may be required to implement this document.
However, implementers are cautioned that this may not represent the latest information, which may be
obtained from the patent database available at www.iso.org/patents. ISO shall not be held responsible for
identifying any or all such patent rights. Details of any patent rights identified during the development of the
document will be in the Introduction and/or on the ISO list of patent declarations received (see ).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and expressions
related to conformity assessment, as well as information about ISO's adherence to the World Trade
Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 147, Water quality, Subcommittee SC 2,
Physical, chemical and biochemical methods., in collaboration with the European Committee for
Standardization (CEN) Technical Committee CEN/TC 230, Water analysis, in accordance with the Agreement
on technical cooperation between ISO and CEN (Vienna Agreement).
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
v
Introduction
Adsorbable organically bound fluorine, chlorine, bromine or iodine are analytical convention parameters used
to monitor water quality. They represent the sum of organically bound fluorine, chlorine, bromine and iodine
that can be adsorbed on activated carbon under specified conditions and, if the sample has not been filtered,
can also be attached to or contained in suspended substances.
In contrast to the AOXadsorbable organically bound halogen (AOX) method according to ISO 9562, this
method can be applied to determine the sum of organofluorine compounds in addition to the determination
of organically bound chlorine, bromine and iodine and detected halogen-specific separately.
The method is carried out by combustion ion chromatography (CIC).
Procedures for each separate parameter are described in Annex A, Annex B, Annex C and Annex D.
Alternatively, the adsorption of the organic substances contained in the water sample on activated carbon can
also be carried out by the shaking method (see Annex E).
Samples with a high content of suspended solids can be analysed using the shaking method (see Annex E).
Samples with a high content of inorganic halides can be analysed using the solid phase extraction (SPE)
method (see Annex F).
Results for samples analysed according to Annex E (shaking procedure) or Annex F (SPE procedure) can differ
significantly from those of the method specified in the main part.
With some waters, interference can occur that cannot be eliminated. These waters cannot be measured with
the method.
The AOCl, AOBr and AOI results according to Annex B, Annex C and Annex D can also be reported as
adsorbable organically bound halogen determined by combustion ion chromatography (CIC-AOX) (see
Annex J).
vi
Water quality — Determination of adsorbable organically bound
fluorine, chlorine, bromine and iodine (AOF, AOCl, AOBr, AOI) —
Method using combustion and subsequent ion chromatographic
measurement
WARNING — Persons using this document should be familiar with normal laboratory practice. This
document does not purport to address all of the safety problems, if any, associated with its use. It is
the responsibility of the user to establish appropriate safety and health practices.
IMPORTANT — It is absolutely essential that tests conducted in accordance wi
...


PROJET FINAL
Norme
internationale
ISO/TC 147/SC 2
Qualité de l’eau — Dosage des
Secrétariat: DIN
composés organiques adsorbables
Début de vote:
contenant du fluor, du chlore, du
2025-09-04
brome et de l’iode (AOF, AOCl, AOBr,
Vote clos le:
AOI) — Méthode de combustion
2025-10-30
suivie d’un mesurage par
chromatographie ionique
Water quality — Determination of adsorbable organically bound
fluorine, chlorine, bromine and iodine (AOF, AOCl, AOBr, AOI) —
Method using combustion and subsequent ion chromatographic
measurement
LES DESTINATAIRES DU PRÉSENT PROJET SONT
INVITÉS À PRÉSENTER, AVEC LEURS OBSERVATIONS,
NOTIFICATION DES DROITS DE PROPRIÉTÉ DONT ILS
AURAIENT ÉVENTUELLEMENT CONNAISSANCE ET À
FOURNIR UNE DOCUMENTATION EXPLICATIVE.
OUTRE LE FAIT D’ÊTRE EXAMINÉS POUR
ÉTABLIR S’ILS SONT ACCEPTABLES À DES FINS
INDUSTRIELLES, TECHNOLOGIQUES ET COM-MERCIALES,
AINSI QUE DU POINT DE VUE DES UTILISATEURS, LES
PROJETS DE NORMES
TRAITEMENT PARALLÈLE ISO/CEN
INTERNATIONALES DOIVENT PARFOIS ÊTRE CONSIDÉRÉS
DU POINT DE VUE DE LEUR POSSI BILITÉ DE DEVENIR DES
NORMES POUVANT
SERVIR DE RÉFÉRENCE DANS LA RÉGLEMENTATION
NATIONALE.
Numéro de référence
PROJET FINAL
Norme
internationale
ISO/TC 147/SC 2
Qualité de l’eau — Dosage des
Secrétariat: DIN
composés organiques adsorbables
Début de vote:
contenant du fluor, du chlore, du
2025-09-04
brome et de l’iode (AOF, AOCl, AOBr,
Vote clos le:
AOI) — Méthode de combustion
2025-10-30
suivie d’un mesurage par
chromatographie ionique
Water quality — Determination of adsorbable organically bound
fluorine, chlorine, bromine and iodine (AOF, AOCl, AOBr, AOI) —
Method using combustion and subsequent ion chromatographic
measurement
LES DESTINATAIRES DU PRÉSENT PROJET SONT
INVITÉS À PRÉSENTER, AVEC LEURS OBSERVATIONS,
NOTIFICATION DES DROITS DE PROPRIÉTÉ DONT ILS
AURAIENT ÉVENTUELLEMENT CONNAISSANCE ET À
FOURNIR UNE DOCUMENTATION EXPLICATIVE.
DOCUMENT PROTÉGÉ PAR COPYRIGHT
OUTRE LE FAIT D’ÊTRE EXAMINÉS POUR
ÉTABLIR S’ILS SONT ACCEPTABLES À DES FINS
© ISO 2025 INDUSTRIELLES, TECHNOLOGIQUES ET COM-MERCIALES,
AINSI QUE DU POINT DE VUE DES UTILISATEURS, LES
Tous droits réservés. Sauf prescription différente ou nécessité dans le contexte de sa mise en œuvre, aucune partie de cette
PROJETS DE NORMES
TRAITEMENT PARALLÈLE ISO/CEN
INTERNATIONALES DOIVENT PARFOIS ÊTRE CONSIDÉRÉS
publication ne peut être reproduite ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique,
DU POINT DE VUE DE LEUR POSSI BILITÉ DE DEVENIR DES
y compris la photocopie, ou la diffusion sur l’internet ou sur un intranet, sans autorisation écrite préalable. Une autorisation peut
NORMES POUVANT
être demandée à l’ISO à l’adresse ci-après ou au comité membre de l’ISO dans le pays du demandeur.
SERVIR DE RÉFÉRENCE DANS LA RÉGLEMENTATION
NATIONALE.
ISO copyright office
Case postale 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Genève
Tél.: +41 22 749 01 11
E-mail: copyright@iso.org
Web: www.iso.org
Publié en Suisse Numéro de référence
ii
Sommaire Page
Avant-propos .v
Introduction .vi
1 Domaine d’application . 1
2 Références normatives . 1
3 Termes et définitions . 2
4 Interférences . 3
4.1 Interférence au cours de l’adsorption .3
4.2 Interférences au cours de la combustion .3
4.3 Interférences au cours de la chromatographie ionique .4
5 Principe. 4
6 Réactifs . 5
7 Appareillage et matériel . 9
8 Échantillonnage et préparation des échantillons .13
8.1 Généralités . 13
8.2 Échantillonnage pour le dosage de l’AOF . 13
8.3 Échantillonnage pour le dosage de l’AOCl, l’AOBr et l’AOI . 13
8.4 Autre mode opératoire de préparation des échantillons . 13
8.4.1 Dosage de l’AOF . 13
8.4.2 Dosage de l’AOCl, l’AOBr et l’AOI . 13
9 Mode opératoire . 14
9.1 Essai préliminaire.14
9.2 Homogénéisation .14
9.3 Préparation des échantillons .14
9.3.1 Généralités .14
9.3.2 Échantillon d’essai pour le dosage de l’AOF .14
9.3.3 Échantillons d’essai pour le dosage de l’AOCl, l’AOBr et l’AOI .14
9.4 Adsorption sur charbon actif . 15
9.4.1 Mode opératoire d’adsorption . 15
9.4.2 Lavage du charbon actif pour le dosage de l’AOF . 15
9.4.3 Lavage du charbon actif pour le dosage de l’AOCl, l’AOBr et l’AOI. 15
9.5 Mode opératoire supplémentaire pour les échantillons contenant des matières en
suspension . 15
9.6 Dosage à blanc .16
9.6.1 Dosage à blanc de l’AOF .16
9.6.2 Dosage à blanc de l’AOCl, l’AOBr et l’AOI .16
9.7 Fonctionnement du système de chromatographie ionique .16
9.7.1 Généralités .16
9.7.2 Étalonnage .16
9.7.3 Vérification de la chromatographie ionique .16
9.8 Combustion et absorption .16
9.9 Mesurage de la solution d’absorption .17
10 Validation du mode opératoire global . 17
10.1 Vérification initiale .17
10.2 Vérification quotidienne .17
10.3 Essai permettant de déterminer si l’adsorption est complète .18
11 Sélection des résultats analytiques utilisables .18
12 Calcul .18
13 Expression des résultats . 19
14 Rapport d’essai . 19

iii
Annexe A (normative) Dosage des composés organiques adsorbables contenant du fluor (AOF) .20
Annexe B (normative) Dosage des composés organiques adsorbables contenant du chlore
(AOCl) .23
Annexe C (normative) Dosage des composés organiques adsorbables contenant du brome
(AOBr) .26
Annexe D (normative) Dosage des composés organiques adsorbables contenant de l’iode (AOI) .30
Annexe E (informative) Dosage des composés organiques adsorbables contenant du fluor, du
chlore, du brome et de l’iode à l’aide de la méthode par agitation (SH-AOF, SH-AOCl, SH-
AOBr et SH-AOI) .34
Annexe F (informative) Dosage des composés organiques adsorbables contenant du fluor,
du chlore, du brome et de l’iode dans les eaux à forte teneur en halogénures après
extraction sur phase solide (SPE-AOF, SPE-AOCl, SPE-AOBr, SPE-AOI) .37
Annexe G (normative) Essai permettant de déterminer si l’adsorption est complète par
combustion individuelle des charbons actifs à partir de dosages multiples et d’une
absorption séparée .40
Annexe H (normative) Essai permettant de déterminer si l’adsorption est complète par
com
...

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