SIST EN ISO 12944-7:1998

SLOVENSKI STANDARD
SIST EN ISO 12944-7:1998
01-september-1998
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Paints and varnishes - Corrosion protection of steel structures by protective paint
systems - Part 7: Execution and supervision of paint work (ISO 12944-7:1998)
Beschichtungsstoffe - Korrosionsschutz von Stahlbauten durch Beschichtungssysteme -
Teil 7: Ausführung und Überwachung der Beschichtungsarbeiten (ISO 12944-7:1998)
Peintures et vernis - Anticorrosion des structures en acier par systemes de peinture -
Partie 7: Exécution et surveillance des travaux de peinture (ISO 12944-7:1998)
Ta slovenski standard je istoveten z: EN ISO 12944-7:1998
ICS:
25.220.20 Površinska obdelava Surface treatment
87.040 Barve in laki Paints and varnishes
91.080.13 Jeklene konstrukcije Steel structures
SIST EN ISO 12944-7:1998 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 12944-7:1998

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SIST EN ISO 12944-7:1998

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SIST EN ISO 12944-7:1998

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SIST EN ISO 12944-7:1998

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SIST EN ISO 12944-7:1998

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SIST EN ISO 12944-7:1998
INTERNATIONAL ISO
STANDARD 12944-7
First edition
1998-05-15
Paints and varnishes — Corrosion
protection of steel structures by protective
paint systems —
Part 7:
Execution and supervision of paint work
Peintures et vernis — Anticorrosion des structures en acier par systèmes
de peinture —
Partie 7: Exécution et surveillance des travaux de peinture
A
Reference number
ISO 12944-7:1998(E)

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SIST EN ISO 12944-7:1998
ISO 12944-7:1998(E)
Contents Page
1 Scope . 1
2 Normative references. 1
3 Preconditions for the execution of the paint work. 2
3.1 Qualification. 2
3.2 Condition of the substrate. 2
3.3 Health and safety and environmental protection . 2
4 Coating materials. 3
4.1 Supply. 3
4.2 Storage. 3
5 Execution of the paint work . 3
5.1 General . 3
5.2 Application conditions. 4
5.3 Application methods. 5
5.4 Evaluation before work commences. 5
6 Supervision of the paint work. 5
6.1 General . 5
6.2 Measurement and test instruments. 6
6.3 Checking the paint coating . 6
7 Reference areas. 6
7.1 General . 6
7.2 Previously coated surfaces. 7
7.3 Reference area records . 7
7.4 Assessment of coating . 7
Annex A Number of reference areas . 8
©  ISO 1998
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 the publisher.
International Organization for Standardization
Case postale 56 • CH-1211 Genève 20 • Switzerland
Internet iso@iso.ch
Printed in Switzerland
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SIST EN ISO 12944-7:1998
©
ISO
ISO 12944-7:1998(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.
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.
International Standard ISO 12944-7 was prepared by Technical Committee ISO/TC 35, Paints and varnishes, Sub-
committee SC 14, Protective paint systems for steel structures.
ISO 12944 consists of the following parts under the general title Paints and varnishes – Corrosion protection of steel
structures by protective paint systems:
Part 1: General introduction
Part 2: Classification of environments
Part 3: Design considerations
Part 4: Types of surface and surface preparation
Part 5: Protective paint systems
Part 6: Laboratory performance test methods
Part 7: Execution and supervision of paint work
Part 8: Development of specifications for new work and maintenance
Annex A of this part of ISO 12944 is for information only.
iii

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SIST EN ISO 12944-7:1998
©
ISO
ISO 12944-7:1998(E)
Introduction
Unprotected steel in the atmosphere, in water and in soil is subjected to corrosion that may lead to damage. Therefore,
to avoid corrosion damage, steel structures are normally protected to withstand the corrosion stresses during the service
life required of the structure.
There are different ways of protecting steel structures from corrosion. ISO 12944 deals with protection by paint systems
and covers, in the various parts, all features that are important in achieving adequate corrosion protection. Additional or
other measures are possible but require particular agreement between the interested parties.
In order to ensure effective corrosion protection of steel structures, it is necessary for owners of such structures,
planners, consultants, companies carrying out corrosion protection work, inspectors of protective coatings and
manufacturers of coating materials to have at their disposal state-of-the-art information in concise form on corrosion
protection by paint systems. Such information has to be as complete as possible, unambiguous and easily
understandable to avoid difficulties and misunderstandings between the parties concerned with the practical
implementation of protection work.
This International Standard - ISO 12944 - is intended to give this information in the form of a series of instructions. It is
written for those who have some technical knowledge. It is also assumed that the user of ISO 12944 is familiar with
other relevant International Standards, in particular those dealing with surface preparation, as well as relevant national
regulations.
Although ISO 12944 does not deal with financial and contractual questions, attention is drawn to the fact that, because
of the considerable implications of inadequate corrosion protection, non-compliance with requirements and
recommendations given in this standard may result in serious financial consequences.
ISO 12944-1 defines the overall scope of all parts of ISO 12944. It gives some basic terms and definitions and a general
introduction to the other parts of ISO 12944. Furthermore, it includes a general statement on health, safety and
environmental protection, and guidelines for using ISO 12944 for a given project.
This part of ISO 12944 describes how paint work on steel structures is to be executed and supervised after the surface
has been prepared in accordance with ISO 12944-4. Examples of protective paint systems suitable for this purpose are
given in ISO 12944-5.
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SIST EN ISO 12944-7:1998
©
INTERNATIONAL STANDARD  ISO ISO 12944-7:1998(E)
Paints and varnishes — Corrosion protection of steel
structures by protective paint systems —
Part 7:
Execution and supervision of paint work
1 Scope
1.1 This part of ISO 12944 deals with the execution and supervision of paint work on steel structures in the
workshop or on site.
1.2 This part of ISO 12944 does not apply to:
– the preparation of surfaces to be painted (see ISO 12944-4) and the supervision of such work,
– the application of metallic coatings,
– pre-treatment methods such as phosphating and chromating and paint application methods such as dipping,
powder coating or coil coating.
2 Normative references
The following standards contain provisions which, through reference in this text, constitute provisions of this part of
ISO 12944. At the time of publication, the editions indicated were valid. All standards are subject to revision, and
parties to agreements based on this part of ISO 12944 are encouraged to investigate the possibility of applying the most
recent editions of the standards indicated below. Members of IEC and ISO maintain registers of currently valid
International Standards.
ISO 1512:1991, Paints and varnishes – Sampling of products in liquid or paste form.
ISO 1513:1992, Paints and varnishes – Examination and preparation of samples for testing.
ISO 2409:1992, Paints and varnishes – Cross-cut test.
ISO 2808:1997, Paints and varnishes – Determination of film thickness.
ISO 4624:1978, Paints and varnishes – Pull-off test for adhesion.
ISO 8502-4:1993, Preparation of steel substrates before application of paints and related products – Tests for the
assessment of surface cleanliness – Part 4: Guidance on the estimation of the probability of
condensation prior to paint application.
ISO 9001:1994, Quality systems – Model for quality assurance in design, development, production, installation
and servicing.
ISO 9002:1994, Quality systems – Model for quality assurance in production, installation and servicing.
1

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SIST EN ISO 12944-7:1998
©
ISO
ISO 12944-7:1998(E)
ISO 12944-1:1998, Paints and varnishes – Corrosion protection of steel structures by protective paint systems -
Part 1: General introduction.
ISO 12944-4:1998, Paints and varnishes – Corrosion protection of steel structures by protective paint systems -
Part 4: Types of surface and surface preparation.
ISO 12944-5:1998, Paints and varnishes – Corrosion protection of steel structures by protective paint systems -
Part 5: Protective paint systems.
ISO 12944-8:1998, Paints and varnishes – Corrosion protection of steel structures by protective paint systems -
Part 8: Development of specifications for new work and maintenance.
3 Preconditions for the execution of the paint work
3.1 Qualification
3.1.1 Companies contracted to apply protective paint systems to steel structures, and their personnel, shall be
capable of carrying out the work properly and safely. Work requiring particular care with regard to its execution shall
only be carried out by personnel having qualifications which have been certified by an approved body, provided no
other agreements have been made between the parties concerned.
3.1.2 Where the contractor has a quality management system in operation, a quality plan shall be prepared by the
contractor which includes his general standards of workmanship. A method statement shall be provided for each stage
of the work.
The contractor shall show that he will be able to achieve the specified quality level at each stage. Evidence for this is,
for example, given by the use of a quality assurance system in accordance with ISO 9001 or ISO 9002.
Unless otherwise agreed, the contractor shall provide the client with extracts of all execution and supervision standards
given in his quality manual that are relevant to the specification.
3.2 Condition of the substrate
A protective paint system requires proper surface preparation, which depends on the initial and final condition of the
surface. The respective requirements shall be specified in the painting specification and be capable of achievement.
Methods of surface preparation are described in ISO 12944-4. The prepared surfaces shall be assessed with regard to
visual cleanliness, surface profile and chemical cleanliness, using the methods given in ISO 12944-4.
The requirements for the supervision of these aspects of the work, the frequency of assessment, and the location of the
assessment work shall be agreed between the parties concerned.
If the condition of the surface differs from that described in the specification, the client shall be informed.
The temperature of the surface shall be without doubt above the dew point of the surrounding air, unless otherwise
specified in the paint manufacturer's technical data sheet.
3.3 Health and safety and environmental protection
The applicable regulations concerning health and safety and environmental protection shall be complied with. See
ISO 12944-1 and ISO 12
...