EN ISO 12944-4-2017 Paints and varnishes - Corrosion protection of steel structures by protective paint systems - Part 4 Types of surface and surface preparatio.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 4: Types of surface and surface preparationBS EN ISO 129444:2017EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 12

2、944-4 December 2017 ICS 25.220.10; 87.020; 91.080.13 Supersedes EN ISO 12944-4:1998English Version Paints and varnishes - Corrosion protection of steel structures by protective paint systems - Part 4: Types of surface and surface preparation (ISO 12944-4:2017) Peintures et vernis - Anticorrosion des

3、 structures en acier par systmes de peinture - Partie 4: Types de surface et de prparation de surface (ISO 12944-4:2017) Beschichtungsstoffe - Korrosionsschutz von Stahlbauten durch Beschichtungssysteme - Teil 4: Arten von Oberflchen und Oberflchenvorbereitung (ISO 12944-4:2017) This European Standa

4、rd was approved by CEN on 30 October 2017. CEN members are bound 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 s

5、uch national standards may be obtained on application to the 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 o

6、wn language and notified to the CEN-CENELEC Management Centre 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,

7、 Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, 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 KOMITE

8、E FR NORMUNG CEN-CENELEC Management Centre: Rue de la Science 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 12944-4:2017 ENational forewordThis British Standard is the UK implementation of EN ISO 1294

9、44:2017. It is identical to ISO 129444:2017. It supersedes BS EN ISO 129444:1998, 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 committe

10、e 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 application. The British Standards Institution 2018 Published by BSI Standards Limited 2018ISBN 978 0 580 93275 5ICS 87.020; 25

11、220.10; 91.080.10Compliance with a British Standard cannot confer immunity from legal 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 STANDAR

12、DBS EN ISO 129444:2017EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 12944-4 December 2017 ICS 25.220.10; 87.020; 91.080.13 Supersedes EN ISO 12944-4:1998English Version Paints and varnishes - Corrosion protection of steel structures by protective paint systems - Part 4: Types of surface a

13、nd surface preparation (ISO 12944-4:2017) Peintures et vernis - Anticorrosion des structures en acier par systmes de peinture - Partie 4: Types de surface et de prparation de surface (ISO 12944-4:2017) Beschichtungsstoffe - Korrosionsschutz von Stahlbauten durch Beschichtungssysteme - Teil 4: Arten

14、von Oberflchen und Oberflchenvorbereitung (ISO 12944-4:2017) This European Standard was approved by CEN on 30 October 2017. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard wit

15、hout 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 Standard exists in three official versions (English, French, German). A version in any other

16、 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 national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, D

17、enmark, Estonia, Finland, Former 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 United Kingdom. EUROPEA

18、N COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Rue de la Science 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 12944-4:201

19、7 EBS EN ISO 129444:2017EN ISO 12944-4:2017 (E) 3 European foreword This document (EN ISO 12944-4:2017) has been prepared by Technical Committee 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

20、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 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 eleme

21、nts of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights. This document supersedes EN ISO 12944-4:1998. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries

22、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, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,

23、Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 12944-4:2017 has been approved by CEN as EN ISO 12944-4:2017 without any modification. BS EN ISO 129444:2017ISO 12944-4:2017(E)Foreword vIntroduction vi1 Scope

24、 . 12 Normative references 13 Terms and definitions . 24 General 45 Types of surface to be prepared . 45.1 General . 45.2 Uncoated surfaces 45.3 Metal-coated surfaces . 45.3.1 Thermally sprayed surfaces . 45.3.2 Hot-dip-galvanized surfaces 45.3.3 Zinc-electroplated surfaces 45.3.4 Sherardized surfac

25、es 55.4 Surfaces painted with prefabrication primer . 55.5 Other painted surfaces . 55.6 Surfaces with chemical treatment 56 Surface preparation methods . 56.1 General . 56.2 Water, solvent and chemical cleaning 56.2.1 Water cleaning . 56.2.2 Steam cleaning . 56.2.3 Emulsion cleaning . 66.2.4 Alkali

26、ne cleaning 66.2.5 Organic-solvent cleaning 66.2.6 Stripping 66.2.7 Acid pickling 66.2.8 Chemical treatment . 66.3 Mechanical cleaning . 66.3.1 Hand-tool cleaning . 66.3.2 Power-tool cleaning 66.3.3 Blast-cleaning . 76.3.4 Water jetting 87 Surface preparation grades . 87.1 General . 87.2 Uncoated su

27、rfaces 97.3 Metal-coated surfaces . 97.4 Surfaces painted with prefabrication primer . 97.5 Other painted surfaces . 98 Surface profile (roughness) and surface profile grading 109 Assessment of prepared surfaces 1010 Temporary protection of prepared surfaces from corrosion and/or contamination .1011

28、 Preparation of temporarily or partly protected surfaces before application of further coatings 1012 Preparation of hot-dip-galvanized surfaces 1112.1 Unweathered surfaces . 1112.2 Weathered surfaces 1113 Preparation of thermally sprayed metal (zinc and aluminium) surfaces 11 ISO 2017 All rights res

29、erved iiiContents PageBS EN ISO 129444:2017ISO 12944-4:2017(E)14 Preparation of zinc-electroplated and sherardized surfaces .1115 Preparation of other coated surfaces 1216 Recommendations regarding pollution and the environment 1217 Health and safety .12Annex A (normative) Standard preparation grade

30、s for primary (overall) surface preparation 13Annex B (normative) Standard preparation grades for secondary (partial) surface preparation 15Annex C (informative) Procedures for removal of extraneous layers and foreign matter, native layers and contaminants .17Bibliography .19iv ISO 2017 All rights r

31、eservedBS EN ISO 129444:2017ISO 12944-4:2017(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 mem

32、ber 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 El

33、ectrotechnical 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

34、 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 he

35、ld 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 informatio

36、n 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 ISOs adherence to the World Trade Organization (WTO) p

37、rinciples 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 14, Protective paint systems for steel structures.This second edition cancels and replaces the fi

38、rst edition (ISO 12944-4:1998), 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; 5.6 “Surfaces with chemic

39、al treatment” has been included; 6.2.8 “Chemical treatment” has been included; Annex C has been restructured to contain two tables for distinction between “extraneous layers and foreign matter” and “native layers and contaminants”; the bibliography has been updated; the text has been editorially rev

40、ised.A list of all parts in the ISO 12944 series can be found on the ISO website. ISO 2017 All rights reserved vBS EN ISO 129444:2017ISO 12944-4:2017(E)IntroductionUnprotected steel in the atmosphere, in water and in soil is subjected to corrosion that can lead to damage. Therefore, to avoid corrosi

41、on damage, steel structures are normally protected to withstand the corrosion stresses to which they will be subjected during the service life required of the structure.There are different ways of protecting steel structures from corrosion. ISO 12944 (all parts) deals with protection by paint system

42、s and covers, in the various parts, all features that are important in achieving adequate corrosion protection. Additional or other measures are possible but require particular agreement between the interested parties.In order to ensure effective corrosion protection of steel structures, owners of s

43、uch structures, planners, consultants, companies carrying out corrosion protection work, inspectors of protective coatings and manufacturers of coating materials need to have at their disposal state-of-the-art information in concise form on corrosion protection by paint systems. It is vital that suc

44、h information is as complete as possible, unambiguous and easily understandable to avoid difficulties and misunderstandings between the parties concerned with the practical implementation of protection work.ISO 12944 (all parts) is intended to give this information in the form of a series of instruc

45、tions. 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 International Standards, in particular those dealing with surface preparation.Although ISO 12944 (all parts) does not deal with financial and co

46、ntractual questions, attention is drawn to the fact that, because of the considerable implications of inadequate corrosion protection, non-compliance with requirements and recommendations given in ISO 12944 (all parts) can result in serious financial consequences.ISO 12944-1 defines the overall scop

47、e 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 statement on health, safety and environmental protection, and guidelines for using ISO 12944 (all parts) for a given project.This document describe

48、s the different types of surface to be protected and gives information on surface preparation methods such as chemical and mechanical cleaning. It deals with surface preparation grades, surface profile (roughness), assessment of prepared surfaces, temporary protection of prepared surfaces, preparati

49、on of temporarily protected surfaces for further coatings, preparation of existing metal coatings, and environmental aspects. As far as possible, reference is made to the basic International Standards on the surface preparation of steel substrates before application of paints and related products.vi ISO 2017 All rights reservedBS EN ISO 129444:2017Paints and varnishes Corrosion protection of steel structures by protective paint systems Part 4: Types of surface and surface preparation1 ScopeThis document covers the following types o