EN ISO 8502-12:2004

SLOVENSKI STANDARD
01-april-2005
3ULSUDYDMHNOHQLKSRGODJSUHGQDQDãDQMHPEDUYLQVRURGQLKSURL]YRGRY3UHVNXVL
]DXJRWDYOMDQMHþLVWRVWLSRYUãLQHGHO7HUHQVNDPHWRGD]DWLWULPHWULMVNR
GRORþHYDQMHYRGRWRSQLKåHOH]RYLKLRQRY,62
Preparation of steel substrates before application of paints and related products - Tests
for the assessment of surface cleanliness - Part 12: Field method for the titrimetric
determination of water-soluble ferrous ions (ISO 8502-12:2003)
Vorbereitung von Stahloberflächen vor dem Auftragen von Beschichtungsstoffen -
Prüfungen zur Bewertung der Oberflächenreinheit - Teil 12: Feldprüfung zur
titrimetrischen Bestimmung von wasserlöslichen Eisenionen (ISO 8502-12:2003)
Préparation des subjectiles d'acier avant application de peintures et de produits
assimilés - Essais pour apprécier la propreté d'une surface - Partie 12: Méthode in situ
pour la détermination titrimétrique des ions ferreux hydrosolubles (ISO 8502-12:2003)
Ta slovenski standard je istoveten z: EN ISO 8502-12:2004
ICS:
25.220.10 Priprava površine Surface preparation
87.020 Postopki za nanašanje Paint coating processes
barvnih premazov
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 8502-12
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2004
ICS 25.220.10
English version
Preparation of steel substrates before application of paints and
related products - Tests for the assessment of surface
cleanliness - Part 12: Field method for the titrimetric
determination of water-soluble ferrous ions (ISO 8502-12:2003)
Préparation des subjectiles d'acier avant application de Vorbereitung von Stahloberflächen vor dem Auftragen von
peintures et de produits assimilés - Essais pour apprécier Beschichtungsstoffen - Prüfungen zur Bewertung der
la propreté d'une surface - Partie 12: Méthode in situ pour Oberflächenreinheit - Teil 12: Feldprüfung zur
la détermination titrimétrique des ions ferreux hydrosolubles titrimetrischen Bestimmung von wasserlöslichen
(ISO 8502-12:2003) Eisenionen (ISO 8502-12:2003)
This European Standard was approved by CEN on 21 December 2004.
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 Central Secretariat 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 Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,
Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2004 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 8502-12:2004: E
worldwide for CEN national Members.

Foreword
The text of ISO 8502-12:2003 has been prepared by Technical Committee ISO/TC 35 "Paints
and varnishes” of the International Organization for Standardization (ISO) and has been taken
over as EN ISO 8502-12:2004 by 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 June 2005, and conflicting national
standards shall be withdrawn at the latest by June 2005.

According to the CEN/CENELEC Internal Regulations, the national standards organizations of
the following countries are bound to implement this European Standard: Austria, Belgium,
Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary,
Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

Endorsement notice
The text of ISO 8502-12:2003 has been approved by CEN as EN ISO 8502-12:2004 without any
modifications.
INTERNATIONAL ISO
STANDARD 8502-12
First edition
2003-02-15
Preparation of steel substrates before
application of paints and related
products — Tests for the assessment of
surface cleanliness —
Part 12:
Field method for the titrimetric
determination of water-soluble ferrous ions
Préparation des subjectiles d'acier avant application de peintures et de
produits assimilés — Essais pour apprécier la propreté d'une surface —
Partie 12: Méthode in situ pour la détermination des ions ferreux
hydrosolubles par titrimétrie
Reference number
ISO 8502-12:2003(E)
©
ISO 2003
ISO 8502-12:2003(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 2003
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 copyright@iso.org
Web www.iso.org
Printed in Switzerland
ii © ISO 2003 – All rights reserved

ISO 8502-12:2003(E)
Contents Page
Foreword . iv
Introduction. v
1 Scope. 1
2 Normative references. 1
3 Principle . 1
4 Reagents . 2
5 Apparatus. 2
6 Removal of water-soluble contaminants from the surface. 2
7 Procedure. 2
8 Expression of results. 3
9 Precision . 3
10 Test report. 3

ISO 8502-12:2003(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 3.
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 part of ISO 8502 may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 8502-12 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.
ISO 8502 consists of the following parts, under the general title Preparation of steel substrates before application of
paints and related products — Tests for the assessment of surface cleanliness:
 Part 1: Field test for soluble iron corrosion products
[Technical Report]
 Part 2: Laboratory determination of chloride on cleaned surfaces
 Part 3: Assessment of dust on steel surfaces prepared for painting (pressure-sensitive tape method)
 Part 4: Guidance on the estimation of the probabil
...