Preparation of steel substrates before application of paints and related products - Test methods for non-metallic blast-cleaning abrasives - Part 7: Determination of water-soluble chlorides (ISO 11127-7:2022)

This document specifies three methods for the determination of water-soluble chlorides in non-metallic blast-cleaning abrasives, namely, amperometric titration, spectro-photometry and ion chromatography.
This document is part of the ISO 11127 series dealing with the sampling and testing of non-metallic abrasives for blast-cleaning.
The types of non-metallic abrasive and requirements on each are contained in the ISO 11126 series.
The ISO 11126 series and the ISO 11127 series have been drafted as a coherent set of International Standards on non-metallic blast-cleaning abrasives.

Vorbereitung von Stahloberflächen vor dem Auftragen von Beschichtungsstoffen - Prüfverfahren für nichtmetallische Strahlmittel - Teil 7: Bestimmung der wasserlöslichen Chloride (ISO 11127-7:2022)

Dieses Dokument legt drei Verfahren für die Bestimmung von wasserlöslichen Chloriden in nichtmetallischen Strahlmitteln fest, nämlich amperometrische Titration, Spektralphotometrie und Ionenchromatographie.
Dieses Dokument ist ein Teil der Normenreihe ISO 11127, welche die Probenahme und die Prüfung von nichtmetallischen Strahlmitteln behandelt.
Die verschiedenen Arten nichtmetallischer Strahlmittel und Anforderungen an diese sind in der Normenreihe ISO 11126 enthalten.
Die Normenreihen ISO 11126 und ISO 11127 wurden als zusammengehöriger Satz von Internationalen Normen über nichtmetallische Strahlmittel erarbeitet.

Préparation des subjectiles d'acier avant application de peintures et de produits assimilés - Méthodes d'essai pour abrasifs non métalliques destinés à la préparation par projection - Partie 7: Détermination des chlorures solubles dans l'eau (ISO 11127-7:2022)

Le présent document spécifie une méthode en trois phases pour déterminer les chlorures solubles dans l’eau dans les abrasifs non métalliques destinés à la préparation par projection, à savoir un titrage ampérométrique, une analyse par spectrophotométrie et une analyse par chromatographie d’échange d’ions.
Le présent document fait partie de la série ISO 11127 afférente à l’échantillonnage et aux essais des abrasifs non métalliques destinés à la préparation par projection.
Les types d’abrasifs non métalliques et les exigences s’y rapportant sont contenus dans l’ISO 11126.
Les séries ISO 11126 et ISO 11127 ont été élaborées sous la forme d’un ensemble cohérent de Normes internationales relatives aux abrasifs non métalliques destinés à la préparation par projection.

Priprava jeklenih podlag pred nanašanjem barv in sorodnih premazov - Preskusne metode za nekovinske granulate za peskanje - 7. del: Določevanje klorida, topnega v vodi (ISO 11127-7:2022)

Ta dokument določa tri metode za določevanje klorida, topnega v vodi, v nekovinskih granulatih za peskanje, in sicer amperometrično titracijo, spektrofotometrijo in ionsko kromatografijo.
Dokument je del skupine standardov ISO 11127, ki obravnavajo vzorčenje in preskušanje nekovinskih granulatov za peskanje.
Vrste nekovinskega granulata in zahteve za posamezen granulat določa skupina standardov ISO 11126. Skupini standardov ISO 11126 in ISO 11127 sta bili pripravljeni kot skladen sklop mednarodnih standardov za nekovinske granulate za peskanje.

General Information

Status
Published
Public Enquiry End Date
02-Feb-2022
Publication Date
04-Jan-2023
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
22-Dec-2022
Due Date
26-Feb-2023
Completion Date
05-Jan-2023

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SLOVENSKI STANDARD
SIST EN ISO 11127-7:2023
01-februar-2023
Nadomešča:
SIST EN ISO 11127-7:2012
Priprava jeklenih podlag pred nanašanjem barv in sorodnih premazov - Preskusne
metode za nekovinske granulate za peskanje - 7. del: Določevanje klorida, topnega
v vodi (ISO 11127-7:2022)
Preparation of steel substrates before application of paints and related products - Test
methods for non-metallic blast-cleaning abrasives - Part 7: Determination of water-
soluble chlorides (ISO 11127-7:2022)
Vorbereitung von Stahloberflächen vor dem Auftragen von Beschichtungsstoffen -
Prüfverfahren für nichtmetallische Strahlmittel - Teil 7: Bestimmung der wasserlöslichen
Chloride (ISO 11127-7:2022)
Préparation des subjectiles d'acier avant application de peintures et de produits
assimilés - Méthodes d'essai pour abrasifs non métalliques destinés à la préparation par
projection - Partie 7: Détermination des chlorures solubles dans l'eau (ISO 11127-
7:2022)
Ta slovenski standard je istoveten z: EN ISO 11127-7:2022
ICS:
25.220.10 Priprava površine Surface preparation
SIST EN ISO 11127-7:2023 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 11127-7:2023

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SIST EN ISO 11127-7:2023


EN ISO 11127-7
EUROPEAN STANDARD

NORME EUROPÉENNE

November 2022
EUROPÄISCHE NORM
ICS 25.220.10 Supersedes EN ISO 11127-7:2011
English Version

Preparation of steel substrates before application of paints
and related products - Test methods for non-metallic
blast-cleaning abrasives - Part 7: Determination of water-
soluble chlorides (ISO 11127-7:2022)
Préparation des subjectiles d'acier avant application de Vorbereitung von Stahloberflächen vor dem Auftragen
peintures et de produits assimilés - Méthodes d'essai von Beschichtungsstoffen - Prüfverfahren für
pour abrasifs non métalliques destinés à la préparation nichtmetallische Strahlmittel - Teil 7: Bestimmung der
par projection - Partie 7: Détermination des chlorures wasserlöslichen Chloride (ISO 11127-7:2022)
solubles dans l'eau (ISO 11127-7:2022)
This European Standard was approved by CEN on 27 November 2022.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.





EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 11127-7:2022 E
worldwide for CEN national Members.

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SIST EN ISO 11127-7:2023
EN ISO 11127-7:2022 (E)
Contents Page
European foreword . 3

2

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SIST EN ISO 11127-7:2023
EN ISO 11127-7:2022 (E)
European foreword
This document (EN ISO 11127-7:2022) has been prepared by Technical Committee ISO/TC 35 "Paints
and varnishes" in collaboration with Technical Committee CEN/TC 139 “Paints and varnishes” the
secretariat of which is held by DIN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by May 2023, and conflicting national standards shall be
withdrawn at the latest by May 2023.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 11127-7:2011.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 11127-7:2022 has been approved by CEN as EN ISO 11127-7:2022 without any
modification.


3

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SIST EN ISO 11127-7:2023

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SIST EN ISO 11127-7:2023
INTERNATIONAL ISO
STANDARD 11127-7
Third edition
2022-11
Preparation of steel substrates before
application of paints and related
products — Test methods for non-
metallic blast-cleaning abrasives —
Part 7:
Determination of water-soluble
chlorides
Préparation des subjectiles d'acier avant application de peintures
et de produits assimilés — Méthodes d'essai pour abrasifs non
métalliques destinés à la préparation par projection —
Partie 7: Détermination des chlorures solubles dans l'eau
Reference number
ISO 11127-7:2022(E)
© ISO 2022

---------------------- Page: 7 ----------------------
SIST EN ISO 11127-7:2023
ISO 11127-7:2022(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2022
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
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
  © ISO 2022 – All rights reserved

---------------------- Page: 8 ----------------------
SIST EN ISO 11127-7:2023
ISO 11127-7:2022(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Reagent . 2
5 Apparatus . 2
6 Sampling . 3
7 Procedure .3
8 Analysis by amperometric titration . .3
9 Analysis by spectrophotometry . 4
10 Analysis by ion chromatography . 5
11 Test report . 5
Bibliography . 6
iii
© ISO 2022 – All rights reserved

---------------------- Page: 9 ----------------------
SIST EN ISO 11127-7:2023
ISO 11127-7:2022(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.
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 documents 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 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 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 www.iso.org/patents).
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 35, Paints and varnishes, Subcommittee
SC 12, Preparation of steel substrates before application of paints and related products, in collaboration
with the European Committee for Standardization (CEN) Technical Committee CEN/TC 139, Paints and
varnishes, in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna
Agreement).
This third edition cancels and replaces the second edition (ISO 11127-7:2011), which has been
technically revised.
The main changes are as follows:
— an Introduction has been added;
— the scope has been expanded to include spect
...

SLOVENSKI STANDARD
oSIST prEN ISO 11127-7:2022
01-januar-2022
Priprava jeklenih podlag pred nanašanjem barv in sorodnih premazov - Preskusne
metode za nekovinske granulate za peskanje - 7. del: Določevanje klorida, topnega
v vodi (ISO/DIS 11127-7:2021)
Preparation of steel substrates before application of paints and related products - Test
methods for non-metallic blast-cleaning abrasives - Part 7: Determination of water-
soluble chlorides (ISO/DIS 11127-7:2021)
Vorbereitung von Stahloberflächen vor dem Auftragen von Beschichtungsstoffen -
Prüfverfahren für nichtmetallische Strahlmittel - Teil 7: Bestimmung der wasserlöslichen
Chloride (ISO/DIS 11127-7:2021)
Préparation des subjectiles d'acier avant application de peintures et de produits
assimilés - Méthodes d'essai pour abrasifs non métalliques destinés à la préparation par
projection - Partie 7: Détermination des chlorures solubles dans l'eau (ISO/DIS 11127-
7:2021)
Ta slovenski standard je istoveten z: prEN ISO 11127-7
ICS:
25.220.10 Priprava površine Surface preparation
oSIST prEN ISO 11127-7:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN ISO 11127-7:2022

---------------------- Page: 2 ----------------------
oSIST prEN ISO 11127-7:2022
DRAFT INTERNATIONAL STANDARD
ISO/DIS 11127-7
ISO/TC 35/SC 12 Secretariat: BSI
Voting begins on: Voting terminates on:
2021-11-15 2022-02-07
Preparation of steel substrates before application of paints
and related products — Test methods for non-metallic
blast-cleaning abrasives —
Part 7:
Determination of water-soluble chlorides
Préparation des subjectiles d'acier avant application de peintures et de produits assimilés — Méthodes
d'essai pour abrasifs non métalliques destinés à la préparation par projection —
Partie 7: Détermination des chlorures solubles dans l'eau
ICS: 25.220.10
This document is circulated as received from the committee secretariat.
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENT AND APPROVAL. IT IS
ISO/CEN PARALLEL PROCESSING
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
Reference number
NATIONAL REGULATIONS.
ISO/DIS 11127-7:2021(E)
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 SUPPORTING DOCUMENTATION. © ISO 2021

---------------------- Page: 3 ----------------------
oSIST prEN ISO 11127-7:2022
ISO/DIS 11127-7:2021(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2021
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
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii
  © ISO 2021 – All rights reserved

---------------------- Page: 4 ----------------------
oSIST prEN ISO 11127-7:2022
ISO/DIS 11127-7:2021(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Reagent . 1
5 Apparatus . 2
6 Sampling . 3
7 Procedure .3
8 Analysis by amperometric titration . .3
9 Analysis by spectrophotometry . 3
10 Analysis by ion chromatography . 4
11 Test report . 5
Annex A (informative) International Standards for non-metallic blast-cleaning abrasives .6
Bibliography . 7
iii
© ISO 2021 – All rights reserved

---------------------- Page: 5 ----------------------
oSIST prEN ISO 11127-7:2022
ISO/DIS 11127-7:2021(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.
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 documents 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 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 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 www.iso.org/patents).
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 35, Paints and varnishes, Subcommittee
SC 12, Preparation of steel substrates before application of paints and related products.
This third edition cancels and replaces the second edition (ISO 11127-7:2011), which has been
technically and editorially revised.
The main changes compared to the previous edition are as follows:
— An Introduction has been added
— The Scope has been expanded to include spectrophotometric and ion chromatographic methods of
analysis
— Clause 3 has been added
— Clause 9 has been added
— Clause 10 has been added
— Annex A has been updated
A list of all parts in the ISO 11127 series can be found on the ISO website.
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.
iv
  © ISO 2021 – All rights reserved

---------------------- Page: 6 ----------------------
oSIST prEN ISO 11127-7:2022
ISO/DIS 11127-7:2021(E)
Introduction
Amperometric titration against silver nitrate has been the established method of determining water-
soluble chlorides in non-metallic abrasives since this document was first published. Latterly, other
methods of analysis offering faster and more sensitive determinations, namely ion chromatography
and spectrophotometry, have gained popularity. This document specifies three methods of analysis for
water-soluble chlorides.
The spectrophotometric determination of water-soluble chloride relies on the dissociation of mercuric
thiocyanate by chloride ions and in the presence of ferric ion the liberated thiocyanate ion forms the
dark red coloured ferric thiocyanate complex in a concentration which is proportional to the original
chloride ion concentration. The concentration of the ferric thiocyanate concentration is determined by
measuring the absorbance at 450nm. This method can be used to determine chloride concentrations
as low as 0.1mg/l. Commercially available reagent kits offer determinations in the ranges 0.1-25
and 1-70mg/l. Portable spectrophotometers allow the adoption of this method as field method of
determination of water-soluble chloride. This method has also been adapted for flow injection analysis.
The determination of chloride by ion chromatograph separates the chloride from other water-soluble
anions by liquid chromatography, applying an anion exchange resin as stationary phase, and aqueous
solutions of carbonate, hydrogencarbonate, hydroxide as eluent. The detection is carried out using a
conductivity detector (CD). This method permits the determination of both chloride and sulphate at the
same time. The determination can be used for chloride concentrations down to 0.1 mg/L.
v
© ISO 2021 – All rights reserved

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