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    EN ISO 12944-3-2017 en Paints and varnishes - Corrosion protection of steel structures by protective paint systems - Part 3 Design considerations.pdf

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    EN ISO 12944-3-2017 en Paints and varnishes - Corrosion protection of steel structures by protective paint systems - Part 3 Design considerations.pdf

    1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Paints and varnishes Corrosion protection of steel structures by protective paint systemsPart 3: Design considerationsBS EN ISO 129443:2017EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 12944-3 December 2017 I

    2、CS 87.020; 91.080.13 Supersedes EN ISO 12944-3:1998English Version Paints and varnishes - Corrosion protection of steel structures by protective paint systems - Part 3: Design considerations (ISO 12944-3:2017) Peintures et vernis - Anticorrosion des structures en acier par systmes de peinture - Part

    3、ie 3: Conception et dispositions constructives (ISO 12944-3:2017) Beschichtungsstoffe - Korrosionsschutz von Stahlbauten durch Beschichtungssysteme - Teil 3: Grundregeln zur Gestaltung (ISO 12944-3:2017) This European Standard was approved by CEN on 30 October 2017. CEN members are bound to comply w

    4、ith the CEN/CENELEC Internal Regulations which stipulate 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 Man

    5、agement Centre or to any CEN member. This European Standard 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 s

    6、tatus as the official versions. CEN members are the national 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, Ma

    7、lta, Netherlands, Norway, Poland, Portugal, Romania, 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: Rue de la Science 23, B-1040 Bru

    8、ssels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 12944-3:2017 ENational forewordThis British Standard is the UK implementation of EN ISO 129443:2017. It is identical to ISO 129443:2017. It supersedes BS EN ISO 129443:

    9、1998, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee 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 purp

    10、ort to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2018 Published by BSI Standards Limited 2018ISBN 978 0 580 91031 9ICS 87.020; 91.080.10Compliance with a British Standard cannot confer immunity from legal

    11、obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 January 2018.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN ISO 129443:2017EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 12944-3

    12、December 2017 ICS 87.020; 91.080.13 Supersedes EN ISO 12944-3:1998English Version Paints and varnishes - Corrosion protection of steel structures by protective paint systems - Part 3: Design considerations (ISO 12944-3:2017) Peintures et vernis - Anticorrosion des structures en acier par systmes de

    13、peinture - Partie 3: Conception et dispositions constructives (ISO 12944-3:2017) Beschichtungsstoffe - Korrosionsschutz von Stahlbauten durch Beschichtungssysteme - Teil 3: Grundregeln zur Gestaltung (ISO 12944-3:2017) This European Standard was approved by CEN on 30 October 2017. CEN members are bo

    14、und to comply with the CEN/CENELEC Internal Regulations which stipulate 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

    15、CEN-CENELEC Management Centre or to any CEN member. This European Standard 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

    16、 has the same status as the official versions. CEN members are the national 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,

    17、 Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, 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: Rue de la Science

    18、 23, B-1040 Brussels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 12944-3:2017 EBS EN ISO 129443:2017EN ISO 12944-3:2017 (E) 3 European foreword This document (EN ISO 12944-3:2017) has been prepared by Technical Committ

    19、ee ISO/TC 35 “Paints and varnishes” in collaboration with Technical Committee 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 lates

    20、t by June 2018, and conflicting national standards shall be withdrawn at the latest by June 2018. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights. Thi

    21、s document supersedes EN ISO 12944-3:1998. According to the 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

    22、Yugoslav Republic of Macedonia, France, Germany, Greece, 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 1

    23、2944-3:2017 has been approved by CEN as EN ISO 12944-3:2017 without any modification. BS EN ISO 129443:2017ISO 12944-3:2017(E)Foreword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 24 General 25 Basic design criteria for corrosion protection purposes . 25.1 General . 2

    24、5.2 Accessibility . 35.3 Treatment of gaps . 35.4 Precautions to prevent retention of deposits and water 35.5 Surface imperfections . 45.6 Bolted connections 45.6.1 Slip-resistant connections with high-tensile bolts . 45.6.2 Preloaded connections . 45.6.3 Bolts, nuts and washers . 45.7 Box members a

    25、nd hollow components . 45.8 Notches 45.9 Stiffeners 55.10 Prevention of galvanic corrosion . 55.11 Handling, transport and erection 5Annex A (informative) Accessibility Typical distances required for tools in corrosion protection work . 6Annex B (informative) Recommended minimum dimensions of openin

    26、gs for access to confined areas . 7Annex C (informative) Minimum dimensions for narrow spaces between surfaces 8Annex D (informative) Design features which can be used to avoid deposits accumulating or water being trapped .10Bibliography .14 ISO 2017 All rights reserved iiiContents PageBS EN ISO 129

    27、443:2017ISO 12944-3:2017(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 technical committees. Each member body interested

    28、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 Commi

    29、ssion (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 sh

    30、ould 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 i

    31、dentifying 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 conv

    32、enience 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 ISOs adherence to the World Trade Organization (WTO) principles in the Tec

    33、hnical 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 14, Protective paint systems for steel structures.This second edition cancels and replaces the first edition (ISO 129

    34、44-3:1998), which has been technically revised.The main changes compared to the previous edition are as follows: the terms and definitions which were not used in the main part of the standard have been deleted; the normative references have been updated; 5.1 “General“ has been added; the requirement

    35、 for gap sealing material has been added in 5.3; the requirements for surface preparation in case of high and very high durabilities for C4 and higher, as well as Im1 to Im4, have been added; the title of Table A.1 has been corrected; a key has been added to Figure B.1; Figure D.1 c) has been delete

    36、d; the requirements for the radius in Figures D.5 and D.7 have been added; a bibliography has been added; the text has been editorially revised.A list of all parts in the ISO 12944 series can be found on the ISO website.iv ISO 2017 All rights reservedBS EN ISO 129443:2017ISO 12944-3:2017(E)Introduct

    37、ionUnprotected steel in the atmosphere, in water and in soil is subjected to corrosion that can lead to damage. Therefore, to avoid corrosion damage, steel structures are normally protected to withstand the corrosion stresses to which they will be subjected during the service life required of the st

    38、ructure.There are different ways of protecting steel structures from corrosion. ISO 12944 (all parts) 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 req

    39、uire particular agreement between the interested parties.In order to ensure effective corrosion protection of steel structures, owners of such structures, planners, consultants, companies carrying out corrosion protection work, inspectors of protective coatings and manufacturers of coating materials

    40、 need to have at their disposal state-of-the-art information in concise form on corrosion protection by paint systems. It is vital that such information is as complete as possible, unambiguous and easily understandable to avoid difficulties and misunderstandings between the parties concerned with th

    41、e practical implementation of protection work.ISO 12944 (all parts) 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 (all parts) is familiar with other relevant Inter

    42、national Standards, in particular those dealing with surface preparation.Although ISO 12944 (all parts) 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 requir

    43、ements and recommendations given in ISO 12944 (all parts) can result in serious financial consequences.ISO 12944-1 defines the overall scope 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 statemen

    44、t on health, safety and environmental protection, and guidelines for using ISO 12944 (all parts) for a given project.This document gives guidance on how to minimize the risk of corrosion by appropriate design measures for steel structures to be coated by protective paint systems. ISO 2017 All rights

    45、 reserved vBS EN ISO 129443:2017Paints and varnishes Corrosion protection of steel structures by protective paint systems Part 3: Design considerations1 ScopeThis document deals with the basic criteria for the design of steel structures to be coated by protective paint systems in order to avoid prem

    46、ature corrosion and degradation of the coating or the structure. It gives examples of appropriate and inappropriate design, indicating how problems of application, inspection and maintenance of paint systems can be avoided. Design measures which facilitate handling and transport of the steel structu

    47、res are also considered.2 Normative referencesThe 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 referen

    48、ced document (including any amendments) applies.ISO 1461, Hot dip galvanized coatings on fabricated iron and steel articles Specifications and test methodsISO 8501-1, Preparation of steel substrates before application of paints and related products Visual assessment of surface cleanliness Part 1: Ru

    49、st grades and preparation grades of uncoated steel substrates and of steel substrates after overall removal of previous coatingsISO 8501-3, Preparation of steel substrates before application of paints and related products Visual assessment of surface cleanliness Part 3: Preparation grades of welds, edges and other areas with surface imperfectionsISO 12944-1, Paints and varnishes Corrosion protection of steel structures by protective paint systems Part 1: General introductionISO 12944-2, Paints and varnishes Corrosion p


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