SIST EN ISO 8504-1:2020

SLOVENSKI STANDARD
oSIST prEN ISO 8504-1:2018
01-oktober-2018
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Preparation of steel substrates before application of paints and related products -
Surface preparation methods - Part 1: General principles (ISO/DIS 8504-1:2018)
Vorbereitung von Stahloberflächen vor dem Auftragen von Beschichtungsstoffen -
Verfahren für die Oberflächenvorbereitung - Teil 1: Allgemeine Grundsätze (ISO/DIS
8504-1:2018)
Préparation des subjectiles d'acier avant application de peintures et de produits
assimilés - Méthodes de préparation des subjectiles - Partie 1: Principes généraux
(ISO/DIS 8504-1:2018)
Ta slovenski standard je istoveten z: prEN ISO 8504-1
ICS:
25.220.10 Priprava površine Surface preparation
87.020 Postopki za nanašanje Paint coating processes
barvnih premazov
oSIST prEN ISO 8504-1:2018 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN ISO 8504-1:2018

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oSIST prEN ISO 8504-1:2018
DRAFT INTERNATIONAL STANDARD
ISO/DIS 8504-1
ISO/TC 35/SC 12 Secretariat: BSI
Voting begins on: Voting terminates on:
2018-08-09 2018-11-01
Preparation of steel substrates before application of paints
and related products — Surface preparation methods —
Part 1:
General principles
Préparation des subjectiles d'acier avant application de peintures et de produits assimilés — Méthodes de
préparation des subjectiles —
Partie 1: Principes généraux
ICS: 25.220.10
THIS DOCUMENT IS A DRAFT CIRCULATED
This document is circulated as received from the committee secretariat.
FOR COMMENT AND APPROVAL. IT IS
THEREFORE SUBJECT TO CHANGE AND MAY
NOT BE REFERRED TO AS AN INTERNATIONAL
STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS
ISO/CEN PARALLEL PROCESSING
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 8504-1:2018(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 2018

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oSIST prEN ISO 8504-1:2018
ISO/DIS 8504-1:2018(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2018
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
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ii © ISO 2018 – All rights reserved

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oSIST prEN ISO 8504-1:2018
ISO/DIS 8504-1:2018(E)

Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 General . 2
5 Condition of the surface to be prepared . 3
5.1 Assessment of the surface condition .3
5.2 Influence of on-site environmental conditions .3
5.3 Removal of contaminants .4
6 Selection of the surface preparation method . 4
7 Selection of the preparation grade . 4
8 Assessment . 5
© ISO 2018 – All rights reserved iii

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oSIST prEN ISO 8504-1:2018
ISO/DIS 8504-1:2018(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 on 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 the following
URL: 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 8504-1:2000), which has been technically
revised.
The main changes compared to the previous edition are as follows:
— Normative references updated;
— Editorially revised.
ISO 8504 consists of the following parts, under the general title Preparation of steel substrates before
application of paints and related products — Surface preparation methods:
— Part 1: General principles
— Part 2: Abrasive blast-cleaning
— Part 3: Hand- and power-tool cleaning
Further parts are planned.
A list of all parts in the ISO 8504- series can be found on the ISO website.
iv © ISO 2018 – All rights reserved

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oSIST prEN ISO 8504-1:2018
ISO/DIS 8504-1:2018(E)

Introduction
The performance of protective coatings of paint and related products applied to steel is significantly
affected by the state of the steel surface immediately prior to painting. The principal factors that are
known to influence this performance are:
the presence of rust and mill scale;
the presence of surface contaminants, including salts, dust, oils and greases;
the surface profile.
International Standards ISO 8501, ISO 8502 and ISO 8503 have been prepared to provide methods
of assessing these factors, while ISO 8504 provides guidance on the preparation methods that are
available for cleaning steel substrates, indicating the capabilities of each in attaining specified levels of
cleanliness.
These International Standards do not contain recommendations for the protective coating system
to be applied to the steel surface. Neither do they contain recommendations for the surface quality
requirements for specific situations even though surface quality can have a direct influence on the
choice of protective coating to be applied and on its performance. Such recommendations are found in
other documents such as national standards and codes of practice. It will be necessary for the users of
these International Standards to ensure the qualities specified are
— compatible and appropriate both for the environmental conditions to which the steel will be exposed
and for the protective coating system to be used;
— within the capability of the cleaning procedure specified.
The four International Standards referred to below deal with the following aspects of preparation of
steel substrates:
ISO 8501:— Visual assessment of surface cleanliness;
ISO 8502:— Tests for the assessment of surface cleanliness;
ISO 8503:— Surface roughness characteristics of blast-cleaned steel substrates;
ISO 8504:— Surface preparation methods.
Each of these International Standards is in turn divided into separate parts.
This part of ISO 8504 describes the general principles for the selection of surface preparation methods.
It should be read in conjunction with ISO 8504-2, ISO 8504-3 and subsequent parts of ISO 8504 that
describe specific surface preparation methods.
© ISO 2018 – All rights reserved v

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oSIST prEN ISO 8504-1:2018

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oSIST prEN ISO 8504-1:2018
DRAFT INTERNATIONAL STANDARD ISO/DIS 8504-1:2018(E)
Preparation of steel substrates before application of paints
and related products — Surface preparation methods —
Part 1:
General principles
1 Scope
This part of ISO 8504 describes the general principles for the selection of methods for the preparation
of steel surfaces before application of paints and related products. It also contains information on
features that must be taken into account before certain surface preparation methods and preparation
grades are selected and specified.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 4628-2:2016, Paints and varnishes — Evaluation of degradation of coatings — Designation of quantity
and size of defects, and of intensity of uniform changes in appearance — Part 2: Assessment of degree of
blistering
ISO 4628-3:2016, Paints and varnishes — Evaluation of degradation of coatings — Designation of
quantity and size of defects, and of intensity of uniform changes in appearance — Part 3: Assessment of
degree of rusting
ISO 4628-4:2016, Paints and varnishes — Evaluation of degradation of coatings — Designation of quantity
and size of defects, and of intensity of uniform changes in appearance — Part 4: Assessment of degree of
cracking
ISO 4628-5:2016, Paints and varnishes — Evaluation of degradation of coatings — Designation of quantity
and size of defects, and of intensity of uniform changes in appearance — Part 5: Assessment of degree of flaking
ISO 8501-1:2007, Preparation of steel substrates before application of paints and related products —
Visual assessment of surface cleanliness — Part 1: Rust grades and preparation grades of uncoated steel
substrates and of steel substr
...