SIST EN ISO 8502-3:2000
(Main)Preparation of steel substrates before application of paint and related products - Tests for the assessment of surface cleanliness - Part 3: Assessment of dust on steel surfaces prepared for painting (pressure-sensitive tape method) (ISO 8502-3:1992)
Preparation of steel substrates before application of paint and related products - Tests for the assessment of surface cleanliness - Part 3: Assessment of dust on steel surfaces prepared for painting (pressure-sensitive tape method) (ISO 8502-3:1992)
This standard describes a method for the assessment of dust remaining on cleaned steel surfaces prepared for painting.
Vorbereitung von Stahloberflächen vor dem Auftragen von Beschichtungsstoffen - Prüfungen zum Beurteilen der Oberflächenreinheit - Teil 3: Beurteilung von Staub auf für das Beschichten vorbereiteten Stahloberflächen (Klebeband-Verfahren) (ISO 8502-3:1992)
1.1 Dieser Teil von ISO 8502 beschreibt ein Verfahren zum Beurteilen von Staub auf gereinigten Stahloberfla(chen, die zum Beschichten vorbereitet sind. Er entha(lt Bilder fu(r die Bewertung der durchschnittlichen Staubmenge und Beschreibungen fu(r die Bewertung der durchschnittlichen Partikelgro(ße des Staubes.
Préparation des subjectiles d'acier avant application de peintures et de produits assimilés - Essais pour apprécier la propreté d'une surface - Partie 3: Evaluation de la poussiere sur les surfaces d'acier préparées pour la mise en peinture (méthode du ruban adhésif sensible a la pression) (ISO 8502-3:1992)
Priprava jeklenih podlag pred nanašanjem barvnih in sorodnih premazov - Preskusi ugotavljanja čistoče podlage - 3. del: Ocena prašnosti jeklene površine, pripravljene za barvanje (metoda z lepilnim trakom) (ISO 8502-3:1992)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 8502-3:2000
01-april-2000
3ULSUDYDMHNOHQLKSRGODJSUHGQDQDãDQMHPEDUYQLKLQVRURGQLKSUHPD]RY
3UHVNXVLXJRWDYOMDQMDþLVWRþHSRGODJHGHO 2FHQDSUDãQRVWLMHNOHQHSRYUãLQH
SULSUDYOMHQH]DEDUYDQMH PHWRGD]OHSLOQLPWUDNRP ,62
Preparation of steel substrates before application of paint and related products - Tests
for the assessment of surface cleanliness - Part 3: Assessment of dust on steel surfaces
prepared for painting (pressure-sensitive tape method) (ISO 8502-3:1992)
Vorbereitung von Stahloberflächen vor dem Auftragen von Beschichtungsstoffen -
Prüfungen zum Beurteilen der Oberflächenreinheit - Teil 3: Beurteilung von Staub auf für
das Beschichten vorbereiteten Stahloberflächen (Klebeband-Verfahren) (ISO 8502-
3:1992)
Préparation des subjectiles d'acier avant application de peintures et de produits
assimilés - Essais pour apprécier la propreté d'une surface - Partie 3: Evaluation de la
poussiere sur les surfaces d'acier préparées pour la mise en peinture (méthode du ruban
adhésif sensible a la pression) (ISO 8502-3:1992)
Ta slovenski standard je istoveten z: EN ISO 8502-3:1999
ICS:
25.220.10 Priprava površine Surface preparation
87.020 Postopki za nanašanje Paint coating processes
barvnih premazov
SIST EN ISO 8502-3:2000 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 8502-3:2000
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SIST EN ISO 8502-3:2000
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SIST EN ISO 8502-3:2000
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SIST EN ISO 8502-3:2000
INTERNATIONAL
STANDARD
First edi tkm
1992-10-01
Corrected and reprinted
1993-05-13
Preparation of steel Substrates before
application of paint and related products -
Tests for the assessment of surface
cleanliness -
Part 3:
Assessment of dust on steel surfaces prepared
for painting (pressure-sensitive tape method)
Preparation des subjectiles d’acier avant application de peintures et de
produifs assimiles - Essais pour apprecier la proprete d’une surface -
Partie 3: Evaluation de la poussike sur les surfaces d’acier pkparees
pour ia mise en peinture (methode du ruban adhesif sensible 2 la
pression)
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Reference number
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ISO 8502-3: 1992(E)
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SIST EN ISO 8502-3:2000
ISO 8582-3:1992(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. Esch member body interested in a subject for
which a technical committee has been established has the right to be
International organizations, govern-
represented on that committee.
mental and non-governmental, in Iiaison 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 Inter-
national Standard requires approval by at least 75 % of the member
bodies casting a vote.
International Standard ISO 8502-3 was prepared by Technical Committee
ISO/TC 35, Paints and varnishes, Sub-Committee SC 12, Preparation of
steel Substrates before application of paints and related products.
ISO 8502 consists of the following Parts, under the general title Prep-
aration of steel Substrates before application of paint and related prod-
ucts - Tests for the assessment of surface cleanliness:
-
Part 1: Field test for soluble iron corrosion products
[Technical Report]
-
Part 2: Laboratory determination of chlort’de 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 probability of
condensa tion Prior fo pain t applica tion
-
Part 5: Measuremenf of chloride on steel surfaces prepared for
painting - Ion detector tube method
- Part 6: Sampling of soluble impurities on surfaces to be painted -
method
Bresle
-
Part 7: Analysis of soluble impurities on surfaces to be painted -
Analysis methods for field use for oil and grease
0 ISO 1992
All rights reserved. No part of this publication may be reproduced or utilized in any form
or by any means, electronie or mechanical, including photocopying and microfilm, without
permission in writing from the publisher.
International Organization for Standardization
Case Postale 56 l CH-1211 Geneve 20 l Switzerland
Printed in Switzerland
ii
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SIST EN ISO 8502-3:2000
ISO 8502=3:1992(E)
-
Part 8: Analysis of soluble impurities on surfaces to be painted -
Analysis methods for field use for moisture
Users should note that the titles to future Parts 5 to 8 are working titles
only and that, while it is at present planned to publish all the Parts listed
above, one or more may nevertheless be deleted from the work pro-
gramme before publication, which may, in turn, lead to renumbering of
the remaining Parts.
Annex A of this patt of ISO 8502 is for information only.
. . .
Ill
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SIST EN ISO 8502-3:2000
ISO 850203:1992(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:
a) the presence of rust and mill scale;
b) the presence of surface contaminants, including salts, dust, oils and
greases;
c) 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 Systems to be applied to the steel surface. Neither do
they contain recommendations for the surface quality requirements for
specific situations even though surface quality tan have a direct influ-
ence on the choice of protective coating to be applied and on its per-
formante. Such recommendations are found in other documents such
as national Standards and Codes of practice. lt will be necessary for the
users of these International Standards to ensure that 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 above deal with the follow-
ing 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
su bstrates;
- Surface preparation methods.
iS0 8504
Esch of these International Standards is in turn divided into separate
Parts.
iv
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SIST EN ISO 8502-3:2000
ISO 8502=3:1992(E)
This patt of ISO 8502 describes a procedure for the assessment, using
a pressure-sensitive tape method, of the quantity and the particle size
of dust on steel surfaces prepared for painting.
In the painting schedule requirements of contractual documents giving
details of surface preparation by blast-cleaning, it is normally specified
that all surfaces shall be free from surface contamination including Oil,
grease, dirt, dust and water-soluble salts.
Dust on blast-cleaned steel surfaces may reduce the adhesion of sub-
sequently applied organic coatings and, by absorbing moisture, may
promote the corrosion of the blast-cleaned steel surfaces. Accumulation
of dust more naturally occurs on horizontal surfaces, the interior of
pipes, and in structural cavities. Special inspection should be carried
out to ensure that such areas are adequately cleaned and adequately
free from dust before painting.
Because of subjective factors involved in the test procedure, the test
does not allow the precise determination of dust retained on blast-
cleaned steel surfaces. Nevertheless, when carried out by experienced
Operators, and especially when used to compare the Performance of
surfaces under test with agreed Standard specimens, it gives very useful
information.
There are many possible variables in the conditions at sites where tests
may be required to be carried out. Agreements made between inter-
ested Parties where appropriate should include the number or frequency
of tests, the test locations, and the dates and times when the tests are
to be carried out.
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SIST EN ISO 8502-3:2000
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SIST EN ISO 8502-3:2000
INTERNATIONAL STANDARD ISO 8502=3:1992(E)
Preparation of steel Substrates before application of paint and
related products - Tests for the assessment of surface
cleanliness -
Part 3:
Assessment of dust on steel surfaces prepared for painting
(pressure-sensitive tape method)
of the limited elasticity of adhesive tape, it is not
1 Scope
possible for the tape to penetrate into the deep pits
present in cleaned steel that originally corre-
1.1 This pat-t of ISO 8502 describes a method for
sponded to rust grade D.
the assessment of dust remaining on cleaned steel
surfaces prepared for painting. lt provides pictorial
1.4 While a test procedure in which pressure is
ratings for the assessment of the average quantity
applied to a tape using the thumb is subjective, it is
of dust. lt also provides descriptive classes for the
usually adequate, especially for use in situations
assessment of the average size of the dust particles.
where surfaces free from dust are required. In cases
of dispute, except when rust grade C or D is in-
NOTE 1 The quantity ratings and size classes referred
volved, pressure may be applied to the back of the
to in this part of ISO 8502 are derived from
adhesive tape using a spring-loaded roller.
ISO 4628-1:1982, Paints and varnishes -- Evaluation of
degradation of paint coatings - Designation of intensity,
quantity and size of common types of defect -- Part 1:
2 Normative references
General principles and rating schemes.
The following Standards contain provisions which,
1.2 The method may be carried out
through reference in this text, constitute provisions
of this part of ISO 8502. At the time of publication,
either
the editions indicated were valid. All Standards are
subject to revision, and Parties to agreements based
a) as a “pass/faiI” test by assessing the quantity of
on this part of ISO 8502 are encouraged to investi-
dust present on a test surface, and the average
gate the possibility of applying the most recent edi-
dust particle size, in comparison with specific
tions of the Standards indicated below. Members of
limits;
IEC and ISO maintain registers of currently valid
International Standards.
or
ISO 8501-1:1988, Preparation of steel Substrates be-
b) to provide a permanent record of the dust pres-
fore application of paints and related products -
ent on a slrface by mounting the tapes used to
Visual assessment of surface cleanhess - Part 1:
carry out the tests on tiles, cards or Paper, of an
Rust grades and preparation grades of uncoated
appropriate contrasting colour.
steel Substrates and of steel Substrates after Overall
removal of previous coatings.
1.3 This method is suitable for the assessment of
IEC 454-2: 1974, Specifkations for’ pressure-sensitive
dust retained, after cleaning, on a steel surface
which corresponded before cleaning to rust adhesive tapes for elecfrical purposes - Part 2:
grade A, B or C as defined in ISO 85014. Because Methods of test.
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SIST EN ISO 8502-3:2000
ISO 8502=3:1992(E)
6.2 Touching the adhesive side of the tape only at
3 Definition
the ends, press about 150 mm ofthe freshly exposed
tape firmly on to the surface under test. With due
For the purposes of this part of ISO 8502, the foHow-
regard to subclause 1.4, adopt one of the following
ing definition
...
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