1、Paints and varnishes - Corrosion protection of steel structures by protective paint systemsPart 5: Protective paint systems (ISO 12944-5:2018)BS EN ISO 12944-5:2018BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06National forewordThis British Standard is the UK implem
2、entation of EN ISO 12944-5:2018. It is identical to ISO 12944-5:2018. It supersedes BS EN ISO 12944-5:2007, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee STI/21, Paint systems and surface preparation for metallic substrates.A list of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 re
3、presented 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 application. The British Standards Institution 2018 Published by BSI Standards Limited 2018ISBN 978 0
4、 580 72927 0ICS 87.020; 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 30 April 2018.Amendments/corrigenda issued since publicationDate Text affectedB
5、RITISH STANDARDBS EN ISO 12944-5:2018EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 12944-5March 2018ICS 87.020 Supersedes EN ISO 12944-5:2007EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGCEN-CENELEC Management Centre: Avenue Marnix 17, B-10
6、00 Brussels 2018 CEN Ref. No. EN ISO 12944-5:2018: EAll rights of exploitation in any form and by any means reserved worldwide for CEN national MembersPaints and varnishes - Corrosion protection of steel structures by protective paint systems - Part 5: Protective paint systems (ISO 12944-5:2018)Pein
7、tures et vernis - Anticorrosion des structures en acier par systmes de peinture - Partie 5: Systmes de peinture (ISO 12944-5:2018)Beschichtungsstoffe - Korrosionsschutz von Stahlbauten durch Beschichtungssysteme - Teil 5: Beschichtungssysteme (ISO 12944-5:2018)This European Standard was approved by
8、CEN on 15 February 2018.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 such national standa
9、rds 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 own language and noti
10、fied 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, Greece, Hungary, Ice
11、land, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.English VersionEN ISO 12944-5:2018 (E)European forewordThis document (EN ISO 12944-5:2018) has been prepared b
12、y 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 European Standard shall be given the status of a national standard, either by publication of an identical text or by endorse
13、ment, at the latest by September 2018, and conflicting national standards shall be withdrawn at the latest by September 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
14、all such patent rights.This document supersedes EN ISO 12944-5:2007.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,
15、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 the United Kingdom.Endorsement
16、noticeThe text of ISO 12944-5:2018 has been approved by CEN as EN ISO 12944-5:2018 without any modification.2BS EN ISO 12944-5:2018ISO 12944-5:2018Foreword ivIntroduction vi1 Scope . 12 Normative references 13 Terms and definitions . 14 Classification of environments 35 New work and refurbishment .
17、35.1 New work and total refurbishment . 35.2 Partial refurbishment 46 Types of paint 46.1 General . 46.2 Examples of generic type of paints 46.2.1 Alkyd paints (AK) 46.2.2 Acrylic paints (AY) 46.2.3 Ethyl silicate paints (ESI) 56.2.4 Paints for epoxy coatings (EP) . 56.2.5 Paints for polyurethane co
18、atings (PUR) 56.2.6 Paints for polyaspartic coatings (PAS) 66.2.7 Paints for polysiloxane coatings (PS) . 67 Paint systems 67.1 Priming coats and type of primers 67.1.1 General 67.1.2 Types of primer . 67.2 Subsequent coats 77.2.1 General 77.2.2 Intermediate coats . 77.2.3 Topcoats 77.3 Dry film thi
19、ckness. 77.4 Durability . 87.5 Shop and site application . 88 Tables for protective paint systems for C2 to C5, Im1, Im2 and Im3 98.1 Reading the tables 98.2 Parameters influencing durability . 98.3 Designation of the paint systems listed . 98.4 Guidelines for selecting the appropriate paint system
20、9Annex A (normative) Abbreviated terms and descriptions.11Annex B (normative) Minimum requirements for corrosion protection systems .12Annex C (informative) Paint systems for carbon steel 15Annex D (informative) Paint systems on hot dip galvanized steel 18Annex E (informative) Paint systems on therm
21、al-sprayed metallic coatings .20Annex F (informative) Pre-fabrication primers .21Bibliography .23 ISO 2018 All rights reserved iiiContents PageBS EN ISO 12944-5:2018ISO 12944-5:2018ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
22、 (ISO member bodies). The work of preparing International Standards is normally carried out through ISO 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,
23、governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further mai
24、ntenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for 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).Att
25、ention 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 identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introducti
26、on 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 convenience of users and does not constitute an endorsement.For an explanation on the voluntary nature of standards, the meaning of ISO specific terms
27、 and expressions related to conformity assessment, as well as information about ISOs adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.htmlThis document was prepared by Technical Committee ISO/TC 35, Pa
28、ints and varnishes, Subcommittee SC 14, Protective paint systems for steel structures.This third edition cancels and replaces the second edition (ISO 12944-5:2007) which has been technically revised.The main changes compared to the previous edition are as follows:a) the normative references in Claus
29、e 2 have been updated;b) the terms and definitions in Clause 3 have been revised;c) the document has been restructured and editorially revised;d) new types of coatings (polyaspartic, fluoropolymer, fluoroethylene/vinyl ether co-polymer and polysiloxanes coatings) have been added;e) descriptions for
30、intermediate coats and topcoats have been added;f) the former Annex A has been divided into the new Annexes C, D and E;g) the former Annex B has been renumbered to become Annex F;h) a new normative Annex A containing abbreviated terms and descriptions has been added;i) a new normative Annex B, “Mini
31、mum requirements for corrosion protection systems”, has been added;j) the former Annex C has been deleted;k) the former Annex D has been deleted;l) a Bibliography has been added;iv ISO 2018 All rights reservedBS EN ISO 12944-5:2018ISO 12944-5:2018A list of all parts in the ISO 12944 series can be fo
32、und on the ISO website. ISO 2018 All rights reserved vBS EN ISO 12944-5:2018ISO 12944-5:2018IntroductionUnprotected steel in the atmosphere, in water and in soil is subjected to corrosion that may lead to damage. Therefore, to avoid corrosion damage, steel structures are normally protected to withst
33、and the corrosion stresses during the required 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 systems and covers, in the various parts, all features that are important in achieving ad
34、equate 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 such structures, planners, consultants, companies carrying out corrosion protection
35、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 such information is as complete as possible, unambiguous and easily understandable to
36、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 instructions. It is written for those who have some technical knowledge. It is also assume
37、d 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 contractual questions, attention is drawn to the fact that, because of the considerab
38、le 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 scope of ISO 12944. It gives some basic terms and definitions and a general introductio
39、n 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 gives some terms and definitions related to paint systems in combination with guidance for
40、the selection of different types of protective paint system.vi ISO 2018 All rights reservedBS EN ISO 12944-5:2018Paints and varnishes - Corrosion protection of steel structures by protective paint systems Part 5: Protective paint systems (ISO 12944-5:2018)1 ScopeThis document describes the types of
41、paint and paint system commonly used for corrosion protection of steel structures.It also gives guidelines for the selection of paint systems available for different environments (see ISO 12944-2) except for corrosivity category CX and category Im4 as defined in ISO 12944-2 and different surface pre
42、paration grades (see ISO 12944-4), and the durability grade to be expected (see ISO 12944-1).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 cit
43、ed applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 1461, Hot dip galvanized coatings on fabricated iron and steel articles Specifications and test methodsISO 2063 (all parts), Thermal spraying Zinc, aluminium and their alloysISO 2
44、808, Paints and varnishes Determination of film thicknessISO 3549, Zinc dust pigments for paints Specifications and test methodsISO 8501-1, Preparation of steel substrates before application of paints and related products Visual assessment of surface cleanliness Part 1: Rust grades and preparation g
45、rades of uncoated steel substrates and of steel substrates after overall removal of previous coatingsISO 8503-1, Preparation of steel substrates before application of paints and related products Surface roughness characteristics of blast-cleaned steel substrates Part 1: Specifications and definition
46、s for ISO surface profile comparators for the assessment of abrasive blast-cleaned surfacesISO 12944-1, Paints and varnishes Corrosion protection of steel structures by protective paint systems Part 1: General introductionISO 12944-2, Paints and varnishes Corrosion protection of steel structures by
47、protective paint systems Part 2: Classification of environmentsISO 19840, Paints and varnishes Corrosion protection of steel structures by protective paint systems Measurement of, and acceptance criteria for, the thickness of dry films on rough surfaces3 Terms and definitionsFor the purposes of this
48、 document, the terms and definitions given in ISO 12944-1 and the following apply.INTERNATIONAL STANDARD ISO 12944-5:2018 ISO 2018 All rights reserved 1BS EN ISO 12944-5:2018ISO 12944-5:2018ISO and IEC maintain terminological databases for use in standardization at the following addresses: IEC Elect
49、ropedia: available at http:/www.electropedia.org/ ISO Online browsing platform: available at https:/www.iso.org/obp3.1compatibilityability of two or more products to be used together successfully as a paint system without causing undesirable effects3.2priming coatfirst coat of a paint system3.3intermediate coatany coat between the priming coat (3.2) and the topcoat (3.6)3.4tie coatcoat designed to improve intercoat adhesionSOURCE: ISO 4618:2014, 2.2623.5sealercoating material applied to porous surface prior to painting to reduce
