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1、BRITISH STANDARD BS EN ISO 12944-8:1998 Paints and varnishes Corrosion protection of steel structures by protective paint systems Part 8: Development of specifications for new work and maintenance The European Standard EN ISO 12944-8:1998 has the status of a British Standard ICS 87.020; 91.080.10 BS
2、 EN ISO 12944-8:1998 This British Standard, having been prepared under the direction of the Sector Committee for Materials and Chemicals, was published under the authority of the Standards Committee and comes into effect on 15 November 1998 BSI 05-1999 ISBN 0 580 30351 9 National foreword This Briti
3、sh Standard is the English language version of EN ISO 12944-8:1998. It is identical with ISO 12944-8:1998. Together with the other seven parts of BS EN ISO 12944, it partially supersedes BS 5493:1977 which is declared obsolescent. The UK participation in its preparation was entrusted to Technical Co
4、mmittee STI/27, Paint systems for metallic substrates, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related
5、international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references Attention is drawn to the fact that CEN and CENELEC Standards normally include an annex which lists normative ref
6、erences to international publications with their corresponding European publications. The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Corresponden
7、ce Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of it
8、self confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, the EN ISO title page, page 2, the ISO title page, pages ii to iv, pages 1 to 37 and a back cover. This standard has been updated (see copyright date) and may h
9、ave had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Amendments issued since publication Amd. No.DateComments BS EN ISO 12944-8:1998 BSI 05-1999i Contents Page National forewordInside front cover Foreword2 Forewordiii Text of ISO 12944-81 ii blank
10、 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 12944-8 May 1998 ICS 87.020.00 Descriptors: See ISO document English version Paints and varnishes Corrosion protection of steel structures by protective paint systems Part 8: Development of specifications for new work and maintenance (ISO 129
11、44-8:1998) Peintures et vernis Anticorrosion des structures en acier par systmes de peinture Partie 8: Dveloppement de spcifications pour les travaux neufs et lentretien (ISO 12944:1998) Beschichtungsstoffe Korrosionsschutz von Stahlbauten durch Beschichtungssysteme Teil 8: Erarbeiten von Spezifikat
12、ionen fr Erstschutz und Instandsetzung (ISO 12944-8:1998) This European Standard was approved by CEN on 2 March 1998. 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 a
13、ny alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made b
14、y translation under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ir
15、eland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1998 CEN All rights of exploitatio
16、n in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 12944-8:1998 E EN ISO 12944-8:1998 BSI 05-1999 2 Foreword The text of the International Standard ISO 12944-8:1998 has been prepared by Technical Committee ISO/TC 35 “Paints and varnishes” in collaboration wit
17、h 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 latest by November 1998, and conflicting national standards
18、shall be withdrawn at the latest by November 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, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, I
19、reland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of the International Standard ISO 12944-8:1998 was approved by CEN as a European Standard without any modification. NOTENormative references to International Stand
20、ards are listed in Annex ZA (normative). EN ISO 12944-8:1998 ii BSI 05-1999 Contents Page Forewordiii Introduction1 1Scope1 2Normative references1 3Definitions3 4How to develop a specification for new work or maintenance4 5Contents of a specification5 Annex A (informative) Basic information for incl
21、usion in a protective paint system specification for new work and maintenance14 Annex B (informative) Reference areas15 Annex C (informative) Flow chart for planning new work18 Annex D (informative) Flow chart for planning maintenance work19 Annex E (informative) Classification of environments Check
22、list20 Annex F (informative) Example of a simple project specification21 Annex G (informative) Recommended form for a protective paint system specification New work25 Annex H (informative) Recommended form for a protective paint system specification Maintenance26 Annex I (informative) Recommended fo
23、rm for a report on paint work progress and application conditions27 Annex J (informative) Recommended form for final report on corrosion protection work28 Annex K (informative) Recommended form for a detailed inspection report on the condition of an existing protective paint system, including the as
24、sessment of the need for maintenance31 Annex ZA (normative) Normative references to international publications with their relevant European publications36 Table 1 Contents of a project specification6 Table 2 Contents of a protective paint system specification10 Table 3 Contents of a paint work speci
25、fication11 Table 4 Contents of an inspection and assessment specification13 Descriptors: Paints, varnishes, steel construction, corrosion, corrosion prevention, protective coatings, paint coats, painting, specifications, contents lists. EN ISO 12944-8:1998 BSI 05-1999iii Foreword ISO (the Internatio
26、nal 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 technical committee has been
27、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 matters of electrotechnical standar
28、dization. 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. International Standard ISO 12944-8 was prepared by Technical Co
29、mmittee ISO/TC 35, Paints and varnishes, Subcommittee SC 14, Protective paint systems for steel structures. 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
30、 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; Part 7: Execution and supervision of paint work; Part 8: Development of specifications for new work and
31、maintenance. Annex A to Annex K are for information only. iv blank EN ISO 12944-8:1998 BSI 05-19991 Introduction 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
32、to withstand the corrosion stresses during the service life required 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, all features that are important in achieving adequate corr
33、osion 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, it is necessary for owners of such structures, planners, consultants, companies carrying out corrosion p
34、rotection work, inspectors of protective coatings and manufacturers of coating materials to have at their disposal state-of-the-art information in consise form on corrosion protection by paint systems. Such information has to be as complete as possible, unambigous and easily understandable to avoid
35、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 those who have some technical knowledge. It is
36、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 contractual questions, attention is drawn to the fact t
37、hat, because of the considerable implications of inadequate corrosion protection, non-compliance with requirements and recommendations given in this standard may result in serious financial consequences. ISO 12944-1 defines the overall scope of all parts of ISO 12944. It gives some basic terms and d
38、efinitions 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. This part of ISO 12944 is intended as an aid when a corrosion protection specifi
39、cation is to be drawn up. 1 Scope This part of ISO 12944 deals with the development of specifications for corrosion protection of steel structures, using protective paint systems. It relates to new work and maintenance in the workshop or on site and is also applicable to the corrosion protection of
40、individual components. This part of ISO 12944 concerns the corrosion protection of steel structures exposed to different corrosion stresses by environments such as indoors, open-air and immersion in water or burial in soil, as well as special stresses, for example due to medium or high temperatures.
41、 The need for different durability ranges is considered. Steel surfaces that have been hot-dip-galvanized, metal-sprayed, zinc-electroplated or sherardized, and previously painted steel surfaces, are also covered by this part of ISO 12944. In Annex B, reference areas for assessing the quality of the
42、 corrosion protection work and the performance of the protective paint systems used are dealt with. Annex C and Annex D provide detailed flow charts for planning new work and maintenance, which should be taken into account when writing a specification. If extreme corrosion stresses or high temperatu
43、res occur, or the protective paint systems are to be used on other substrates such as non-ferrous metals or concrete, the specifications will have to take this into account. This part of ISO 12944 may also be used as a guide in such cases. 2 Normative references The following standards contain provi
44、sions which, through reference in this text, constitute provisions of this part of ISO 12944. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this part of ISO 12944 are encouraged to investigate the possibility
45、of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO 2409:1992, Paints and varnishes Cross-cut test. ISO 2808:1997, Paints and varnishes Determination of film thickness. ISO 4623:1984, Paints
46、and varnishes Filiform corrosion test on steel. ISO 4624:1978, Paints and varnishes Pull-off test for adhesion. EN ISO 12944-8:1998 2 BSI 05-1999 ISO 4628-2:1982, Paints and varnishes Evaluation of degradation of paint coatings Designation of intensity, quantity and size of common types of defect Pa
47、rt 2: Designation of degree of blistering. ISO 4628-3:1982, Paints and varnishes Evaluation of degradation of paint coatings Designation of intensity, quantity and size of common types of defect Part 3: Designation of degree of rusting. ISO 4628-4:1982, Paints and varnishes Evaluation of degradation
48、 of paint coatings Designation of intensity, quantity and size of common types of defect Part 4: Designation of degree of cracking. ISO 4628-5:1982, Paints and varnishes Evaluation of degradation of paint coatings Designation of intensity, quantity and size of common types of defect Part 5: Designat
49、ion of degree of flaking. ISO 4628-6:1990, Paints and varnishes Evaluation of degradation of paint coatings Designation of intensity, quantity and size of common types of defect Part 6: Rating of degree of chalking by tape method. ISO 8501-1:1988, 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