SIST EN ISO 16276-2:2025

SLOVENSKI STANDARD
01-julij-2025
Nadomešča:
SIST EN ISO 16276-2:2009
Protikorozijska zaščita jeklenih konstrukcij z zaščitnimi premaznimi sistemi -
Ocenjevanje adhezije/kohezije (lomne trdnosti) premazov in kriteriji sprejemljivosti
- 2. del: Preskušanje po prečnem prerezu in X-prerezu (ISO 16276-2:2025)
Corrosion protection of steel structures by protective paint systems - Assessment of, and
acceptance criteria for, the adhesion/cohesion (fracture strength) of a coating - Part 2:
Cross-cut testing and X-cut testing (ISO 16276-2:2025)
Korrosionsschutz von Stahlbauten durch Beschichtungssysteme - Beurteilung der
Adhäsion/Kohäsion (Haftfestigkeit) einer Beschichtung und Kriterien für deren Annahme
- Teil2: Gitterschnitt- und Kreuzschnittprüfung (ISO 16276-2:2025)
Protection contre la corrosion des structures en acier par systèmes de peinture -
Évaluation et critères d’acceptation de l’adhésion/cohésion (résistance à la rupture) d’un
revêtement - Partie 2: Essai de quadrillage et essai à la croix de Saint André (ISO 16276
-2:2025)
Ta slovenski standard je istoveten z: EN ISO 16276-2:2025
ICS:
25.220.20 Površinska obdelava Surface treatment
87.040 Barve in laki Paints and varnishes
91.080.13 Jeklene konstrukcije Steel structures
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 16276-2
EUROPEAN STANDARD
NORME EUROPÉENNE
May 2025
EUROPÄISCHE NORM
ICS 87.040 Supersedes EN ISO 16276-2:2007
English Version
Corrosion protection of steel structures by protective paint
systems - Assessment of, and acceptance criteria for, the
adhesion/cohesion (fracture strength) of a coating - Part 2:
Cross-cut testing and X-cut testing (ISO 16276-2:2025)
Protection contre la corrosion des structures en acier Korrosionsschutz von Stahlbauten durch
par systèmes de peinture - Évaluation et critères Beschichtungssysteme - Beurteilung der
d'acceptation de l'adhésion/cohésion (résistance à la Adhäsion/Kohäsion (Haftfestigkeit) einer
rupture) d'un revêtement - Partie 2: Essai de Beschichtung und Kriterien für deren Annahme - Teil2:
quadrillage et essai à la croix de Saint André (ISO Gitterschnitt- und Kreuzschnittprüfung (ISO 16276-
16276-2:2025) 2:2025)
This European Standard was approved by CEN on 10 May 2025.

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
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 16276-2:2025 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 16276-2:2025) 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 November 2025, and conflicting national standards
shall be withdrawn at the latest by November 2025.
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 16276-2:2007.
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 16276-2:2025 has been approved by CEN as EN ISO 16276-2:2025 without any
modification.
International
Standard
ISO 16276-2
Second edition
Corrosion protection of steel
2025-05
structures by protective paint
systems — Assessment of, and
acceptance criteria for, the
adhesion/cohesion (fracture
strength) of a coating —
Part 2:
Cross-cut testing and X-cut testing
Protection contre la corrosion des structures en acier par
systèmes de peinture — Évaluation et critères d’acceptation de
l’adhésion/cohésion (résistance à la rupture) d’un revêtement —
Partie 2: Essai de quadrillage et essai à la croix de Saint André
Reference number
ISO 16276-2:2025(en) © ISO 2025

ISO 16276-2:2025(en)
© ISO 2025
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 16276-2:2025(en)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
4.1 General .2
4.2 Principle of cross-cut method .2
4.3 Principle of X-cut method .3
5 Apparatus and materials . 3
5.1 Cross-cut test .3
5.2 X-cut test .3
6 Procedure . 3
6.1 General .3
6.2 Field tests on coated structures .3
6.3 Test panels for use on site . .4
6.4 Cross-cut test .4
6.5 X-cut test .4
6.6 Testing .5
6.6.1 General .5
6.6.2 Sampling plan .5
6.6.3 Inspection areas .5
6.6.4 Minimum number of tests .5
6.7 Interpretation of results .5
7 Expression of results . 5
8 Acceptance criteria . 6
9 Test report . 6
Annex A (normative) Classification of results of X-cut test . 7
Bibliography . 8

iii
ISO 16276-2:2025(en)
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 document 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).
ISO draws attention to the possibility that the implementation of this document may involve the use 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.
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 14, Protective paint systems for steel structures, 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 second edition cancels and replaces the first edition (ISO 16276-2:2007), which has been technically
revised.
The main changes are as follows:
— the content and structure have been updated.
A list of all parts in the ISO 16276 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 16276-2:2025(en)
Introduction
The main purpose of this document is to supplement the ISO 12944 series with regard to the field assessment
of, and acceptance criteria for, the adhesion/cohesion of a coating.
NOTE 1 This document applies to the assessment of cross-cut testing and X-cut testing of paint coatings on steel
structures on site. ISO 2409 specifies a cross-cut test.
Fracture strength testing is normally destructive and therefore requires repair work, the extent of which
will depend on the specification and the durability required of the protective paint coating.
This document aims to minimize variability and achieve uniformity of practice in the assessment of the
fracture strength of a protective paint coating and t
...