1、BS EN ISO 8502-3:2017Preparation of steel substrates before application of paints and related products Tests for the assessment of surface cleanlinessPart 3: Assessment of dust on steel surfaces prepared for painting (pressure-sensitive tape method) (ISO 8502-3:2017)BSI Standards PublicationWB11885_
2、BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS EN ISO 8502-3:2017 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO 8502-3:2017. It supersedes BS EN ISO 8502-3:2000 which iswithdrawn.The UK participation in its preparation was entrusted to Technical Commit
3、tee STI/21, Paint systems and surface preparation for metallic substrates.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct a
4、pplication. The British Standards Institution 2017.Published by BSI Standards Limited 2017ISBN 978 0 580 76074 7 ICS 17.040.20; 25.220.10 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy a
5、nd Strategy Committee on 28 February 2017.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 8502-3 February 2017 ICS 25.220.10 Supersedes EN ISO 8502-3:1999English Version Preparation of steel substrates before applicat
6、ion of paints 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 8502-3:2017) Prparation des subjectiles dacier avant application de peintures et de produits assimils - Essa
7、is pour apprcier la propret dune surface - Partie 3: valuation de la poussire sur les surfaces dacier prpares pour la mise en peinture (mthode du ruban adhsif sensible la pression) (ISO 8502-3:2017) Vorbereitung von Stahloberflchen vor dem Auftragen von Beschichtungsstoffen - Prfungen zum Beurteilen
8、 der Oberflchenreinheit - Teil 3: Beurteilung von Staub auf fr das Beschichten vorbereiteten Stahloberflchen (Klebeband-Verfahren) (ISO 8502-3:2017) This European Standard was approved by CEN on 30 September 2016. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipul
9、ate 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 St
10、andard 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 n
11、ational standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,
12、Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any form and
13、 by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 8502-3:2017 EBS EN ISO 8502-3:2017EN ISO 8502-3:2017 (E) 3 European foreword This document (EN ISO 8502-3:2017) has been prepared by Technical Committee ISO/TC 35 “Paints and varnishes“ in collaboration with Technical Committ
14、ee 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 August 2017, and conflicting national standards shall be withdrawn at
15、the latest by August 2017. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN ISO 8502-3:1999. According to t
16、he 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece,
17、Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 8502-3:2017 has been approved by CEN as EN ISO 8502-3:2017
18、 without any modification. BS EN ISO 8502-3:2017ISO 8502-3:2017(E)Foreword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 14 Principle 15 Apparatus and materials 26 Procedure. 27 Test report . 4Annex A (informative) Spring-loaded roller . 5Bibliography 8 ISO 2017 All ri
19、ghts reserved iiiContents PageBS EN ISO 8502-3:2017ISO 8502-3:2017(E)ForewordISO (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 technica
20、l 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 wit
21、h 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 f
22、or 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 ri
23、ghts. 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
24、 this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principl
25、es in the Technical Barriers to Trade (TBT) see the following URL: www .iso .org/ iso/ foreword .html.This document was developed by Technical Committee ISO/TC 35, Paints and varnishes, Subcommittee SC 12, Preparation of steel substrates before application of paints and related products.This second
26、edition cancels and replaces the first edition (ISO 8502-3:1992), which has been technically revised with the following changes:a) in Clause 2 and 5.1, IEC 454-2 has been substituted with IEC 60454-2;b) in Table 1, decimal sign has been changed to a decimal comma;c) Figure A.4 has been added and the
27、 former Figure A.4 has been renamed Figure A.5;d) the document has been editorially revised.ISO 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 2: Lab
28、oratory 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
29、 prepared for painting (ion detection tube method) Part 6: Extraction of soluble contaminants for analysis The Bresle method Part 9: Field method for the conductometric determination of water-soluble salts Part 11: Field method for the turbidimetric determination of water-soluble sulfate Part 12: Fi
30、eld method for the titrimetric determination of water-soluble ferrous ionsiv ISO 2017 All rights reservedBS EN ISO 8502-3:2017ISO 8502-3:2017(E)IntroductionThe performance of protective coatings of paint and related products applied to steel is significantly affected by the state of the steel surfac
31、e immediately prior to painting. The principal factors that are known to influence this performance are as follows:a) presence of rust and mill scale;b) presence of surface contaminants, including salts, dust, oils and greases;c) surface profile.The ISO 8501, ISO 8502 and ISO 8503 series of Internat
32、ional Standards have been prepared to provide methods of assessing these factors, while the ISO 8504 series 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 series of
33、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
34、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
35、for the environmental conditions to which the steel will be exposed and for the protective coating system to be used, and within the capability of the cleaning procedure specified.The four series of International Standards referred to above deal with the following aspects of preparation of steel sub
36、strates before application of paints and related products: ISO 8501 on visual assessment of surface cleanliness; ISO 8502 on tests for the assessment of surface cleanliness; ISO 8503 on surface roughness characteristics of blast-cleaned steel substrates; ISO 8504 on surface preparation methods.Each
37、of these International Standards is in turn divided into separate parts.This part 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
38、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 can reduce the adhesion of subsequently
39、 applied organic coatings and, by absorbing moisture, might 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 ar
40、eas 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 espec
41、ially when used to compare the performance of surfaces under test with agreed standard specimens, it gives very useful information. ISO 2017 All rights reserved vBS EN ISO 8502-3:2017ISO 8502-3:2017(E)There are many possible variables in the conditions at sites where tests might be required to be ca
42、rried out. Agreements made between interested 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.vi ISO 2017 All rights reservedBS EN ISO 8502-3:2017INTERNATIONAL STANDARD ISO 8502-3:2017(E)Pre
43、paration of steel substrates before application of paints 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)1 ScopeThis part of ISO 8502 describes a method for the assessment of dust
44、 remaining on cleaned steel surfaces prepared for painting. It provides pictorial ratings for the assessment of the average quantity of dust. It also provides descriptive classes for the assessment of the average size of the dust particles.The method described is a qualitative test useful for a stee
45、l surface, before cleaning, corresponding to rust grade A, B or C as defined in ISO 8501-1. It can be used as a “pass/fail” test or to provide a permanent record of the dust present on a surface.NOTE The quantity ratings and size classes referred to in this part of ISO 8502 are derived from ISO 4628
46、-1.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any ame
47、ndments) applies.ISO 4618, Paints and varnishes Terms and definitionsISO 8501-1, 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 substrates
48、after overall removal of previous coatingsIEC 60454-2, Pressure-sensitive adhesive tapes for electrical purposes Part 2: Methods of test3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 4618 and the following apply.3.1dustloose particulate matters prese
49、nt on a steel surface prepared for painting, arising from blast-cleaning or other surface preparation processes or resulting from the action of the environment4 PrincipleA pressure-sensitive adhesive tape is pressed on to the steel surface prepared for painting. The tape, with the dust adhering to it, is then removed and placed on a display board of a colour which contrasts to that of the dust, and is examined visually. The quantity of dust adhering to the tape and the dust particle size are then estimated. ISO 201
