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1、BRITISH STANDARD BS EN ISO 12944-5:2007 Paints and varnishes Corrosion protection of steel structures by protective paint systems Part 5: Protective paint systems The European Standard EN ISO 12944-5:2007 has the status of a British Standard ICS 87.020; 91.080.10 ? BS EN ISO 12944-5:2007 This Britis
2、h Standard was published under the authority of the Standards Policy and Strategy Committee on 31 October 2007 BSI 2007 ISBN 978 0 580 55926 6 National foreword This 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 It supersedes BS EN ISO 12944-5:1998 which is withdrawn.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 part
3、icipation in its preparation was entrusted to Technical Committee STI/27, Paint systems 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.
4、 Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. Amendments issued since publication Amd. No. DateComments EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 12944-5 September 2007 ICS 87.020Supersedes EN ISO
5、12944-5:1998 English Version Paints and varnishes - Corrosion protection of steel structures by protective paint systems - Part 5: Protective paint systems (ISO 12944-5:2007) Peintures et vernis - Anticorrosion des structures en acier par systmes de peinture - Partie 5: Systmes de peinture (ISO 1294
6、4-5:2007) Beschichtungsstoffe - Korrosionsschutz von Stahlbauten durch Beschichtungssysteme - Teil 5: Beschichtungssysteme (ISO 12944-5:2007) 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 cond
7、itions 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 Management Centre or to any CEN member. This European Standard exists in thr
8、ee 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 Management Centre has the same status as the official versions. CEN members are the national standards bodies of
9、Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN
10、COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2007 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 12944-5:2007: E Foreword Thi
11、s document (EN ISO 12944-5:2007) 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 European Standard shall be given the status of a national standard, ei
12、ther by publication of an identical text or by endorsement, at the latest by March 2008, and conflicting national standards shall be withdrawn at the latest by March 2008. This document supersedes EN ISO 12944-5:1998. According to the CEN/CENELEC Internal Regulations, the national standards organiza
13、tions of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Roman
14、ia, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 12944-5:2007 has been approved by CEN as a EN ISO 12944-5:2007 without any modification. EN ISO 12944-5:2007 Reference number ISO 12944-5:2007(E) INTERNATIONAL STANDARD ISO 12944-5 Second ed
15、ition 2007-09-15 Paints and varnishes Corrosion protection of steel structures by protective paint systems Part 5: Protective paint systems Peintures et vernis Anticorrosion des structures en acier par systmes de peinture Partie 5: Systmes de peinture EN ISO 12944-5:2007 ii iii Contents Page Forewor
16、d 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 Irreversible coatings. 4 4.4 General properties of different generic types of paint 7 5 Paint systems 7 5.1 Classification of environments and surfaces
17、 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 Tables 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
18、. 12 6.4 Guidelines for selecting the appropriate paint system. 12 Annex A (informative) Paint systems. 13 Annex B (informative) Pre-fabrication primers . 23 Annex C (informative) General properties. 25 Annex D (informative) Volatile organic compounds (VOCs) 26 Bibliography. 28 EN ISO 12944-5:2007 i
19、v Foreword ISO (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 in a subject for which a
20、 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 Commission (IEC) on all matte
21、rs of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circula
22、ted to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. 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 responsibl
23、e 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, Protective paint systems for steel structures. This second edition cancels and replaces the first edition (ISO 12944-5:1998), which has been technical
24、ly 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 changes in the numbering of the systems in the tables. ISO 12944 consists of the following parts, under the general title Paints and varnishes Corrosio
25、n protection of steel structures by protective paint systems: Part 1: General introduction Part 2: Classification of environments Part 3: Design considerations Part 4: Types of surface and surface preparation Part 5: Protective paint systems Part 6: Laboratory performance test methods and associated
26、 assessment criteria Part 7: Execution and supervision of paint work Part 8: Development of specifications for new work and maintenance EN ISO 12944-5:2007 v Introduction Unprotected steel in the atmosphere, in water and in soil is subjected to corrosion that may lead to damage. Therefore, to avoid
27、corrosion damage, steel structures are normally protected to withstand the corrosion stresses during the required service life of the structure. There are different ways of protecting steel structures from corrosion. ISO 12944 deals with protection by paint systems and covers, in the various parts,
28、all features that are important in achieving adequate corrosion protection. Other measures are possible, but require particular agreement between the interested parties. In order to ensure effective corrosion protection of steel structures, it is necessary for owners of such structures, planners, co
29、nsultants, companies carrying out corrosion protection work, inspectors of protective coatings and manufacturers of coating materials to have at their disposal state-of-the-art information in concise form on corrosion protection by paint systems. Such information has to be as complete as possible, u
30、nambiguous and easily understandable to avoid difficulties and misunderstandings between the parties concerned with the practical implementation of protection work. This International Standard ISO 12944 is intended to give this information in the form of a series of instructions. It is written for t
31、hose who have some technical knowledge. It is also assumed that the user of ISO 12944 is familiar with other relevant International Standards, in particular those dealing with surface preparation, as well as relevant national regulations. Although ISO 12944 does not deal with financial and contractu
32、al 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 this standard might result in serious financial consequences. ISO 12944-1 defines the overall scope of all par
33、ts 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 for a given project. ISO 12944-5 gives some terms and
34、 definitions related to paint systems in combination with guidance for the selection of different types of protective paint system. EN ISO 12944-5:2007 blank 1 Paints and varnishes Corrosion protection of steel structures by protective paint systems Part 5: Protective paint systems 1 Scope This part
35、 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 selection of paint systems available for different environments (see ISO 12944-2) and different surface preparation grades (see ISO 12944-4), and
36、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 references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applie
37、s. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 2808, Paints and varnishes Determination of film thickness ISO 3549, Zinc dust pigments for paints Specifications and test methods ISO 4628-1, Paints and varnishes Evaluation of degradati
38、on of coatings Designation of quantity and size of defects, and of intensity of uniform changes in appearance Part 1: General introduction and designation system ISO 4628-2, Paints and varnishes Evaluation of degradation of coatings Designation of quantity and size of defects, and of intensity of un
39、iform changes in appearance Part 2: Assessment of degree of blistering ISO 4628-3, Paints and varnishes Evaluation of degradation of coatings Designation of 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
40、varnishes Evaluation of degradation of coatings Designation of quantity and size of defects, and of intensity of uniform changes in appearance Part 4: Assessment of degree of cracking ISO 4628-5, Paints and varnishes Evaluation of degradation of coatings Designation of quantity and size of defects,
41、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 coatings Designation of quantity and size of defects, and of intensity of uniform changes in appearance Part 6: Assessment of degree of chalking by
42、tape method ISO 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 after overall removal of previous coatings EN ISO 12944-5
43、:2007 2 ISO 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 imperfections ISO 12944-1, Paints and varnishes Corrosion protection of steel structu
44、res by protective paint systems Part 1: General introduction ISO 12944-2, Paints and varnishes Corrosion protection of steel structures by protective paint systems Part 2: Classification of environments ISO 12944-4:1998, Paints and varnishes Corrosion protection of steel structures by protective pai
45、nt systems Part 4: Types of surface and surface preparation ISO 12944-6, Paints and varnishes Corrosion protection of steel structures by protective paint systems Part 6: Laboratory performance test methods and associated assessment criteria ISO 19840, Paints and varnishes Corrosion protection of st
46、eel structures by protective paint systems Measurement of, and acceptance criteria for, the thickness of dry films on rough surfaces 3 Terms and definitions 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
47、 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 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
48、 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 products to be used together successfully as a paint system without causing undesirable effects 3.4 compatibility between a product and the substrate
49、 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 normally also provide corrosion protection during the overcoating interval