1、BRITISH STANDARDBS EN ISO 12944-5:2007Paints and varnishes Corrosion protection of steel structures by protective paint systems Part 5: Protective paint systemsThe European Standard EN ISO 12944-5:2007 has the status of a British StandardICS 87.020; 91.080.10g49g50g3g38g50g51g60g44g49g42g3g58g44g55g
2、43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN ISO 12944-5:2007This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 October 20
3、07 BSI 2007ISBN 978 0 580 55926 6National forewordThis British Standard is the UK implementation of EN ISO 12944-5:2007. It supersedes BS EN ISO 12944-5:1998 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee STI/27, Paint systems for metallic substrates
4、.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 application.Compliance with a British Standard cannot confer immunity from
5、 legal obligations.Amendments issued since publicationAmd. No. Date CommentsEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 12944-5September 2007ICS 87.020 Supersedes EN ISO 12944-5:1998 English VersionPaints and varnishes - Corrosion protection of steel structuresby protective paint systems -
6、 Part 5: Protective paint systems(ISO 12944-5:2007)Peintures et vernis - Anticorrosion des structures en acierpar systmes de peinture - Partie 5: Systmes de peinture(ISO 12944-5:2007)Beschichtungsstoffe - Korrosionsschutz von Stahlbautendurch Beschichtungssysteme - Teil 5:Beschichtungssysteme (ISO 1
7、2944-5:2007)This European Standard was approved by CEN on 24 June 2007.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographi
8、cal references concerning such nationalstandards may be obtained on application to the CEN 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 translationunder the responsibility of a CEN m
9、ember into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
10、Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Bruss
11、els 2007 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN ISO 12944-5:2007: EForeword This document (EN ISO 12944-5:2007) has been prepared by Technical Committee ISO/TC 35 “Paints and varnishes“ in collaboration with Technical Commit
12、tee 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 March 2008, and conflicting national standards shall be withdrawn at
13、 the latest by March 2008. This document supersedes EN ISO 12944-5:1998. 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, Cyprus, Czech Republic, Denmark, Esto
14、nia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 12944-5:2007 has been approved by C
15、EN as a EN ISO 12944-5:2007 without any modification. EN ISO 12944-5:2007Reference numberISO 12944-5:2007(E)INTERNATIONAL STANDARD ISO12944-5Second edition2007-09-15Paints and varnishes Corrosion protection of steel structures by protective paint systems Part 5: Protective paint systems Peintures et
16、 vernis Anticorrosion des structures en acier par systmes de peinture Partie 5: Systmes de peinture EN ISO 12944-5:2007ii iiiContents Page Foreword iv Introduction v 1 Scope . 1 2 Normative references . 1 3 Terms and definitions. 2 4 Types of paint 4 4.1 General. 4 4.2 Reversible coatings 4 4.3 Irre
17、versible coatings. 4 4.4 General properties of different generic types of paint 7 5 Paint systems 7 5.1 Classification of environments and surfaces to be painted 7 5.2 Type of primer . 8 5.3 Low-VOC paint systems. 9 5.4 Dry film thickness. 9 5.5 Durability . 9 5.6 Shop and site application 10 6 Tabl
18、es for protective paint systems . 11 6.1 Reading the tables 11 6.2 Parameters influencing durability. 11 6.3 Designation of the paint systems listed. 12 6.4 Guidelines for selecting the appropriate paint system. 12 Annex A (informative) Paint systems . 13 Annex B (informative) Pre-fabrication primer
19、s . 23 Annex C (informative) General properties . 25 Annex D (informative) Volatile organic compounds (VOCs) 26 Bibliography . 28 EN ISO 12944-5:2007iv Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The wo
20、rk 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, governmental and non-governm
21、ental, 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. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The
22、main task of technical committees is to prepare International Standards. 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.
23、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 identifying any or all such patent rights. ISO 12944-5 was prepared by Technical Committee ISO/TC 35, Paints and varnishes, Subcommittee SC 14,
24、Protective paint systems for steel structures. This second edition cancels and replaces the first edition (ISO 12944-5:1998), which has been technically revised. The revision includes a reduction in the number of paint systems and in the number of tables. These changes have also brought about some c
25、hanges in the numbering of the systems in the tables. ISO 12944 consists of the following parts, under the general title Paints and varnishes Corrosion protection of steel structures by protective paint systems: Part 1: General introduction Part 2: Classification of environments Part 3: Design consi
26、derations Part 4: Types of surface and surface preparation Part 5: Protective paint systems Part 6: Laboratory performance test methods and associated assessment criteria Part 7: Execution and supervision of paint work Part 8: Development of specifications for new work and maintenance EN ISO 12944-5
27、:2007vIntroduction Unprotected 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 withstand the corrosion stresses during the required service life of the structure. There a
28、re different ways of protecting steel structures from corrosion. ISO 12944 deals with protection by paint systems and covers, in the various parts, all features that are important in achieving adequate corrosion protection. Other measures are possible, but require particular agreement between the in
29、terested parties. In order to ensure effective corrosion protection of steel structures, it is necessary for owners of such structures, planners, consultants, companies carrying out corrosion protection work, inspectors of protective coatings and manufacturers of coating materials to have at their d
30、isposal state-of-the-art information in concise form on corrosion protection by paint systems. Such information has to be as complete as possible, unambiguous and easily understandable to avoid difficulties and misunderstandings between the parties concerned with the practical implementation of prot
31、ection work. This International Standard ISO 12944 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 is familiar with other relevant International Standards, in partic
32、ular those dealing with surface preparation, as well as relevant national regulations. Although ISO 12944 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 requ
33、irements and recommendations given in this standard might result in serious financial consequences. ISO 12944-1 defines the overall scope of all parts 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 genera
34、l statement on health, safety and environmental protection, and guidelines for using ISO 12944 for a given project. ISO 12944-5 gives some terms and definitions related to paint systems in combination with guidance for the selection of different types of protective paint system. EN ISO 12944-5:2007b
35、lank1Paints and varnishes Corrosion protection of steel structures by protective paint systems Part 5: Protective paint systems 1 Scope This part of ISO 12944 describes the types of paint and paint system commonly used for corrosion protection of steel structures. It also provides guidance for the s
36、election of paint systems available for different environments (see ISO 12944-2) and different surface preparation grades (see ISO 12944-4), and the durability grade to be expected (see ISO 12944-1). The durability of paint systems is classified in terms of low, medium and high. 2 Normative referenc
37、es The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 2808, Paints and varnishes Determination o
38、f film thickness ISO 3549, Zinc dust pigments for paints Specifications and test methods ISO 4628-1, Paints and varnishes Evaluation of degradation of coatings Designation of quantity and size of defects, and of intensity of uniform changes in appearance Part 1: General introduction and designation
39、system ISO 4628-2, Paints and varnishes Evaluation of degradation of coatings Designation of quantity and size of defects, and of intensity of uniform changes in appearance Part 2: Assessment of degree of blistering ISO 4628-3, Paints and varnishes Evaluation of degradation of coatings Designation o
40、f quantity and size of defects, and of intensity of uniform changes in appearance Part 3: Assessment of degree of rusting ISO 4628-4, Paints and varnishes Evaluation of degradation of coatings Designation of quantity and size of defects, and of intensity of uniform changes in appearance Part 4: Asse
41、ssment of degree of cracking ISO 4628-5, Paints and varnishes Evaluation of degradation of coatings Designation of quantity and size of defects, and of intensity of uniform changes in appearance Part 5: Assessment of degree of flaking ISO 4628-6, Paints and varnishes Evaluation of degradation of coa
42、tings Designation of quantity and size of defects, and of intensity of uniform changes in appearance Part 6: Assessment of degree of chalking by tape method ISO 8501-1, Preparation of steel substrates before application of paints and related products Visual assessment of surface cleanliness Part 1:
43、Rust grades and preparation grades of uncoated steel substrates and of steel substrates after overall removal of previous coatings EN ISO 12944-5:20072 ISO 8501-3, Preparation of steel substrates before application of paints and related products Visual assessment of surface cleanliness Part 3: Prepa
44、ration grades of welds, edges and other areas with surface imperfections ISO 12944-1, Paints and varnishes Corrosion protection of steel structures by protective paint systems Part 1: General introduction ISO 12944-2, Paints and varnishes Corrosion protection of steel structures by protective paint
45、systems Part 2: Classification of environments ISO 12944-4:1998, Paints and varnishes Corrosion protection of steel structures by protective paint systems Part 4: Types of surface and surface preparation ISO 12944-6, Paints and varnishes Corrosion protection of steel structures by protective paint s
46、ystems Part 6: Laboratory performance test methods and associated assessment criteria ISO 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 surfaces 3 Terms and definitions
47、 For the purposes of this document, the terms and definitions given in ISO 12944-1 and the following terms and definitions apply. 3.1 high-build property of a coating material which permits the application of a coat of greater thickness than usually considered as normal for that type of coating NOTE
48、 For the purposes of this part of ISO 12944, this means W 80 m dry film thickness per coat. 3.2 high-solids property of a coating material which contains a volume of solids greater than normal for that coating material 3.3 compatibility for products within a paint system ability of two or more produ
49、cts to be used together successfully as a paint system without causing undesirable effects 3.4 compatibility between a product and the substrate ability of a product to be applied to a substrate without causing undesirable effects 3.5 priming coat first coat of a coating system NOTE Priming coats provide good adhesion to sufficiently roughened, cleaned metal and/or cleaned old coating, ensuring a sound base for, and offering adhesion to, the subsequent coats. They norma
