1、BRITISH STANDARD Paints and varnishes - Corrosion protection of steel structures by protective paint systems - Part 1: General introduction The European Standard EN IS0 12944-1:1998 has the status of a British Standard ICs 87.020; 91.080.10 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY CO
2、PYRIGHI LAW BS EN IS0 12944-1: 1998 STD.BSI BS EN IS0 129qq-L-ENGL 1998 m 1b24bb7 0738243 55Li m been prepared under the direction of the Sector committee for Materials and Chemicals, was published under the authority of the Standards Commiaee and comes into effect on 16 November 1998 Amd. No. O BSI
3、 1998 ISBN O 680 30344 6 BS EN IS0 12944-1:1998 Date Text afected National foreword This British Standard is the English language version of EN IS0 129441: 1998. It is identical with IS0 12944-1:1998, Together with the other seven parts of BS EN IS0 12944, it partially supersedes BS 54931977 which i
4、s declared obsolescent. The UK participation in its preparation was entrusted to Technical Committee S“27, Paint systems for metallic substrates, which has the responsibility to: - aid enquirers to understand the text; - present to the responsible internaionalhropean committee any enquiries on the i
5、nterpretation, or proposais for change, and keep the UK interests informed; - monitor related international and European developments and promulgate them in the UK A list of organkaiions represented on this committee can be obtained on request to its secretary. Cross-references Attention is drawn to
6、 the fact that CEN and CENELEC Standards normally include an annex which lists normative references to international publications with their corresponding European publications. The British Standards which implement intrnaonal or European publications referred to in this document may be found in the
7、 BSI Standards Catalogue under the section entitled “International Standards Correspondence Index“, or by using the “Fi“ 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 respon
8、sible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN IS0 title page, the EN IS0 foreword page, the IS0 title page, pages ii to iv, pages
9、 1 to 6, an inside back cover and a back cover. STD-BSI BS EN IS0 L2944-1-ENGL 1998 = 1b24bb7 0738244 490 EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN IS0 12944-1 May 1998 ICs 87.020 Descriptors: see IS0 document English version Paints and varnishes - Corrosion protection of steel structures
10、 by protective paint systems - Part 1 : General introduction (IS0 1 2944-1 : 1 998) Peintures et wmis - Anticonosion des structures en der par systmes de peinture - Partle 1 : Introduction gedrale (Is0 12944-1:1998) eschichtungsstofe - Korrosionsschutt von Stahlbauten durch Beschkhtungssysteme - Tei
11、l 1: Allgemeine Einleitung (IS0 12944-1:1998) This European Standard a8 approved by CEN on 16 JU 1997. CEN members are bound to comply wiai the CEWCENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any elteration. U
12、p-to-date lists and bibiiographical references concerning such natlonal 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 by translation un
13、der aie responsibility of a CEN member into its own language and notified to the Central Secretariat has the sarne status as the offidal versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland. Italy. Lu
14、xembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMiTEE FOR STANDARDIZATION COMITE EUROPEEN DE NORMALISATION EUROPISCHES KOMITEE FOR NORMUNG Central Secretariat: ru8 de Stassart, 36 51050 Brusrel8 O 1998 CEN All rights of exploitation in any form and
15、 by any means reserved wwidwide for CEN national Members. Ref. No. EN IS0 12944-1:1998 E EN IS0 12944-11998 Foreword The text of the International Standard IS0 12944-1:1998 has been prepared by Technical Committee ISO/TC 35 “Paints and varnishes“ in collaboration with Technical Committee CENTTC 139
16、“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 Wentical text or by endorsement, at the latest by November 1998, and conflicting national standards shall be withdrawn atthe latest by
17、 November 1998 According to the CEWCENELEC Internal Rqulations, 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, Ireland, Italy, Luxembourg, Netherlands
18、, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of the International Standard IS0 12944-1 : 1998 was approved by CEN as a European Standard without any modification. STD.BS1 BS EN IS0 L2944-1-ENGL 1998 H lb24bb7 073824b 2b3 H EN IS0 12944-1:1998 INT
19、ERNATIONAL STANDARD IS0 12944-1 First edition 1998-05-1 5 Paints and varnishes - Corrosion protection of steel structures by protective paint systems Part 1: General introduction Peintures et vernis - Anticorrosion des structures en acier par systmes de peinture - Partie 7: Introduction gnrale Refer
20、ence number IS0 12944-1:1998(E) STD*BSI BS EN IS0 LZqYq-L-ENGL 1998 LbZLibbS 0738297 LTT EN IS0 12944-1:1998 Contents Page 1 scope 1 . 2 Normative references . 3 3 Definitions . 3 4 General considerations and requirements . 4 5 Health and safety and environmental protection 4 6 Annex A Information o
21、n the other parts of IS0 12944 Guidelines for using IS0 12944 for a given project 5 6 Ckscriptors: paints, varnishes, steel construction, corrosion, corrosion prevention, protective coatings, generalities. ii STD.BSI BS EN IS0 12944-1-ENGL 1998 E Lb2Libb 0738?48 03b E EN IS0 12944-1:1998 Foreword IS
22、0 (the International Organization for Standardization) is a worldwide federation of national standards bodies (IS0 member bodies). The work of preparing International Standards is normally carried out through IS0 technical committees. Each member body interested in a subject for which a technical co
23、mmittee has been established has the right to be represented on that committee. International organizations, governmental and non- governmental, in liaison with SO, also take part in the work. IS0 collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electro
24、technical standardization. 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 IS0 12944-1 was prepare
25、d by Technical Committee ISO/TC 35, Paints and varnishes, Subcommittee SC 14, Corrosion protection of steel structures by protective paint systems. IS0 12944 consists of the following parts, under the general title Paints and varnishes - Corrosion protection of steel structures by protective paint s
26、ystems: - Part 1: General introduction - Part 2: Classification of environments - Part 3: Design considera fions - 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 - Par
27、t 8: Development of specifications for new work and maintenance Annex A of this part of IS0 12944 is for information only. iii STD.BSI BS EN IS0 L2744-1-ENGL 1998 H 1b24bb7 0738247 T72 EN IS0 12944-11998 Introduction Unprotected steel in the atmosphere, in water and in soil is subject to corrosion t
28、hat may lead to damage. Therefore, to avoid corrosion damage, steel structures are normally protected to withstand the corrosion stresses during the service life required of the structure. There are different ways of protecting steel structures from corrosion. IS0 12944 deals with protection by pain
29、t systems 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, it
30、 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 disposal state-of- the-art information in concise form on corrosion protection by paint syst
31、ems. 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 protectinn work. This International Standard - IS0 12944 - is intended to give this informatio
32、n 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 IS0 12944 is familiar with other relevant International Standards, in particular those dealing with surface preparation, as well as relevant national regulations.
33、 Although IS0 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 requirements and recommendations given in this standard may result in serious financial co
34、nsequences. !SO 12944-1 defines the overall scope of all parts of IS0 12944. It gives some basic terms and definitions and a general introduction to the other parts of IS0 12944. Furthermore, it includes a general statement on health, safety and environmental protection, and guidelines for using IS0
35、 12944 for a given project. STD.BSI BS EN IS0 1i744-1-ENGL 1998 m lb24bb 0738250 7i.i m EN IS0 12944-1:199$ Paints and varnishes - Corrosion protection of steel structures by protective paint systems Part 1: General introduction 1 Scope 1 .I IS0 12944 deals with the corrosion protection of steel str
36、uctures by protective paint systems. - i - protection against: 1.2 IS0 12944 covers only the corrosion-protective function of paint systems. Other protective functions, like the I - I - microorganisms (marine fouling, bacteria, fungi, etc.), = * - chemicals (acids, alkalis, organic solvents, gases,
37、etc.), m * - mechanical action (abrasion, etc.) and are not cowered by IS0 12944. 1.3 The field-of application is characterized by: - the type of structure, - the type of surface and surface preparation, - the type of environment, - the type of protective paint system, - the type of work and - the d
38、urability of the protective paint system. Although IS0 12944 does not cover ail types of structure, surface and surface preparation, it may, by agreement, also be applied to those cases which are not covered by the standard. The various aspects of the field of application are described in more detai
39、l in 1.3.1 to 1.3.6. 1 _ STD=BSI BS EN IS0 32744-1-ENGL 1998 Wi 11i24bb9 0738253 b20 m EN IS0 12944-11998 1.3.1 Type of structure IS0 12944 concerns structures made of carbon or low-alloy steel (e.g. in accordance with EN 10025) of not less than 3 mm thickness, which are designed using an approved s
40、trength calculation. Not covered by IS0 12944 are concrete structures reinforced with steel. 1.3.2 Type of surface and surface preparation IS0 12944 deals with the following types of surface consisting of carbon or low-alloy steel, and their preparation: - uncoated surfaces: - surfaces thermally spr
41、ayed with zinc, aluminium or their alloys; - hot-dip-galvanized surfaces; - zinc-electroplated surfaces; - sherardized surfaces; - surfaces painted with prefabrication primer; - other painted surfaces. 1.3.3 Type of environment IS0 12944 deals with: - six corrosiviy categories for atmospheric enviro
42、nments, - three categories for structures immersed in water or buried in soil. 1.3.4 Typ of protective paint system IS0 12944 covers a range of paint products which dry or cure at ambient conditions. Not covered by IS0 12944 are: - powder coating materials, - stoving enamels, - heatcured paints, - c
43、oatings of more than 2 mm dry-film thickness, - linings of tanks, - products for the chemical treatment of surfaces (e.g. phosphating solutions). 1.3.5 Typ of work IS0 12944 covers both new work and maintenance. 2 STD.BSI BS EN IS0 LZqqq-L-ENGL 1998 Lb2qbbl 0738252 5b7 e EN IS0 12944-1:1998 1.3.6 Du
44、rability of the protective paint system IS0 12944 considers three different durability ranges (low, medium and high). See 3.5 and clause 4. The durability range is not a “guarantee time”. 2 Normative references The following standards contain provisions which, through reference in this text, constit
45、ute provisions of this part of IS0 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 IS0 12944 are encouraged to investigate the possibility of applying the most recent editions of the standard
46、s indicated below. Members of IEC and IS0 maintain registers of currently valid International Standards. IS0 4628-1 :1982, Paints and varnishes - Evaluation of degradation of paint coatings - Designation of intensity, quantity and size of common types of defect - Part 7: General principles and ratin
47、g schemes. IS0 4628-2:1982, Paints and varnishes - Evaluation of degradation of paint coatings - Designation of intensity, quantity and size of common types of defect - Part 2: Designation of degree of blistering. IS0 4628-3:1982, Paints and varnishes - Evaluation of degradation of paint coatings -
48、Designation of intensity, quantity and size of common types of defect - Part 3: Designation of degree of rusting. IS0 4628-4:1982, Paints and varnishes - Evaluation of degradation of paint coatings - Designation of intensity, quantity and size of common types of defect - Part 4: Designation of degre
49、e of cracking. IS0 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: Designation of degree of flaking. EN 10025: 1 990, Hot-rolled products of non-alloy structural steels - Technical delivery conditions. 3 Definitions For the purposes of IS0 12944, the following definitions apply. Additional definitions are given in the other parts of IS0 12944. NOTE - Some of the definitions have been taken from IS0 8044:1989, Corrosion of metals and
