EN ISO 8502-6:1999
(Main)Preparation of steel substrates before application of paints and related products - Tests for assessment of surface cleanliness - Part 6: Extraction of soluble contaminants for analysis - The Bresle method (ISO 8502-6:1995)
Preparation of steel substrates before application of paints and related products - Tests for assessment of surface cleanliness - Part 6: Extraction of soluble contaminants for analysis - The Bresle method (ISO 8502-6:1995)
Vorbereitung von Stahloberflächen vor dem Auftragen von Beschichtungsstoffen - Prüfungen zum Beurteilen der Oberflächenreinheit - Teil 6: Lösen von wasserlöslichen Verunreinigungen zur Analyse - Bresle-Verfahren (ISO 8502-6:1995)
Dieser Teil von ISO 8502 beschreibt ein Verfahren zum Lo(sen von lo(slichen Verunreinigungen auf einer Oberfla(che zur Analyse, bei dem Zellen in flexiblen selbstklebenden Pflastern verwendet werden, die auf jede Oberfla(che, unabha(ngig von deren Form (eben oder gekru(mmt) und Lage (in jeder Richtung, auch nach unten) geklebt werden ko(nnen. Das Verfahren ist als Feldverfahren geeignet, um lo(sliche Verunreinigungen vor dem Beschichten oder a(hnlichen Behandlungen zu bestimmen.
Préparation des subjectiles d'acier avant application de peintures et de produits assimilés - Essais pour apprécier la propreté d'une surface - Partie 6: Extraction des contaminants solubles en vue de l'analyse - Méthode de Bresle (ISO 8502-6:1995)
Priprava jeklenih podlag pred nanašanjem barvnih in sorodnih premazov - Preskusi ugotavljanja čistoče podlage - 6. del: Ekstrakcija topnih nečistoč za analizo - Breslova metoda (ISO 8502-6:1995)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 8502-6:2000
01-april-2000
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3UHVNXVLXJRWDYOMDQMDþLVWRþHSRGODJHGHO (NVWUDNFLMDWRSQLKQHþLVWRþ]D
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Preparation of steel substrates before application of paints and related products - Tests
for assessment of surface cleanliness - Part 6: Extraction of soluble contaminants for
analysis - The Bresle method (ISO 8502-6:1995)
Vorbereitung von Stahloberflächen vor dem Auftragen von Beschichtungsstoffen -
Prüfungen zum Beurteilen der Oberflächenreinheit - Teil 6: Lösen von wasserlöslichen
Verunreinigungen zur Analyse - Bresle-Verfahren (ISO 8502-6:1995)
Préparation des subjectiles d'acier avant application de peintures et de produits
assimilés - Essais pour apprécier la propreté d'une surface - Partie 6: Extraction des
contaminants solubles en vue de l'analyse - Méthode de Bresle (ISO 8502-6:1995)
Ta slovenski standard je istoveten z: EN ISO 8502-6:1999
ICS:
25.220.10 Priprava površine Surface preparation
SIST EN ISO 8502-6:2000 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 8502-6:2000
INTERsNATIONAL
IS0
STANDARD
8502-6
First edition
1995-l 2-15
Preparation of steel substrates before
application of paints and related products -
Tests for the assessment of surface
cleanliness
Part 6:
Extraction of soluble contaminants for
analysis -The Bresle method
Prgparation des subjectiles d ‘acier avant application de peintures et de produits
assimiks - Essais pour appkcier la propret d’une s&ace
Partie 6: Extraction des contaminants solubles en vue de I’analyse - M&hode
de Bresle
Reference number
IS0 8502-6: 1995(E)
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SIST EN ISO 8502-6:2000
IS0 8502-6: 1995(E)
@ is0
Foreword
IS0 (the International Organization for Standardization) is a worldwide
federation of national standards bodies (IS0 member bodies). The work of
preparing International Standards is normally carried out through IS0
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. IS0
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 IS0 8502-6 was prepared by Technical Committee
lSO/TC 35, Paints and varnishes, Subcommittee SC 12, Preparation of
steel substrates before application of paints and related products.
IS0 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 7: 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 probability of condensation
prior to paint application
- Part 5: Measurement of chloride on steel surfaces prepared for
painting - Ion detection tube method
- Part 6: Extraction of soluble contaminants for analysis - The Bresle
method
0 IS0 1995
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 l CH-1211 Geneve 20 l Switzerland
Printed in Switzerland
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@ IS0
- Part 7: Field method for determination of oil and grease
- Part 8: Field method for refractometric determination of moisture
- Part 9: Field method for conductometric determination of water-soluble
salts
- Part 10: Field method for titrimetric determination of chloride
At the time of publication of this part of IS0 8502, part 5 and parts 7 to 10
were in course of preparation.
Annex A forms an integral part of this part of IS0 8502.
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SIST EN ISO 8502-6:2000
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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 influ-
ence 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 IS0 8501, IS0 8502 and IS0 8503 have been pre-
pared to provide methods of assessing these factors, while IS0 8504 pro-
vides 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 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 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 following
aspects of preparation of steel substrates:
- Visual assessment of surface cleanliness;
IS0 8501
IS0 8502 - Tests for the assessment of surface cleanliness;
IS0 8503 - Sun’ace roughness characteris tics of blast-cleaned steel
substrates;
IS0 8504 - Surface preparation methods.
Each of these International Standards is in turn divided into separate parts.
This is one of a number of parts of IS0 8502 that specify tests for the as-
sessment of surface cleanliness. In connection with such tests, there are
several methods for the extraction, for analysis, of soluble contaminants on
surfaces to be painted. Some of these methods are based on the swabbing
of comparatively large test surfaces. This technique provides average values of
the contamination present, but it may conceal localized concentrations of
iv
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SIST EN ISO 8502-6:2000
@ IS0 IS0 8502-6: 1995(E)
contaminants. Also, swabbing may not ensure sufficient penet ration to
dissolve all of the deep-seated contamination such as ferrous salts.
There are other methods, however, which use small cells for the liquid
used to remove and collect the surface contaminants. The cells (rigid or
flexible) are attached to test surfaces where soluble contaminants could
be expected, e.g. where pitting has occurred. This technique usually pro-
vides more accurate, point values of the contamination present.
This part of IS0 8502 describes a simple, inexpensive field test using
flexible cells in the form of adhesive patches designed to be filled with
solvent. The method was originally developed by a Swedish scientist,
Dr. A. Bresle.
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SIST EN ISO 8502-6:2000
INTERNATIONAL STANDARD 0 IS0 IS0 8502-6: 1995(E)
Preparation of steel substrates before application of paints and
Tests for the assessment of surface cleanliness
related products -
Part 6:
Extraction of soluble contaminants for analysis - The Bresle method
IS0 8503-2: 1988, Preparation of steel substrates
I Scope
before application of paints and related products -
Surface roughness characteristics of blast-cleaned
This part of IS0 8502 describes a method of extract-
steel substrates - Part 2: Method for the grading of
ing, for analysis, soluble contaminants from a surface
surface profile of abrasive blast-cleaned steel - Com-
by use of flexible cells in the form of adhesive patches
para for procedure.
which can be attached to any surface, regardless of
its shape (flat or curved) and its orientation (facing in
lSO/IEC Guide 2:1991, General terms and their defi-
any direction, including downwards).
nitions concerning standardization and related activities.
The method described is suitable for use in the field to
determine the presence of soluble contaminants be-
3 Principle
fore painting or a similar treatment.
An adhesive patch with a central compartment de-
This part of IS0 8502 does not cover the subsequent
signed to hold a solvent is attached to the surface
analysis of the contaminants that have been dissolved
from which soluble contaminants are to be removed.
’ off. Methods of analysis suitable for field use are de-
The solvent is injected into the compartment by
scribed in other parts of IS0 8502.
means of a syringe, and then sucked back into the
syringe. This operation is repeated a number of times.
The solvent (now containing contaminants
...
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