1、BRITISH STANDARD Paints and varnishes - Corrosion protection of steel structures by protective paint systems - Part 7: Execution and supervision of paintwork STD-BSI BS EN IS0 LZ44-7-ENGL L998 m lb24bb9 073710b b3 m The European Standard EN IS0 12944-7 1998 has the status of a British Standard ICs 8
2、7.020; 91.0 - present to the responsible internationavEuropean committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; - monitor related international and European developments and promulgate them in the UK. A iist of organizations represented on t
3、his 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 references to international publications with their corresponding European publications. The British Standards whi
4、ch implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does n
5、ot 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 itself confer immunity from legal obligations. Summary of pages This document comprises a hnt cover, an inside fr
6、ont cover, the EN IS0 title page, the EN IS0 foreword page, the IS0 title page, pages ii to iv, pages 1 to 8, the annex ZA page and a back cover. EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN IS0 12944-7 May 1998 ICs 87.020; 91.080.10 Descriptors: see IS0 document English version Paints and v
7、arnishes - Corrosion protection of steel structures by protective paint systems - Part 7: Execution and supervision of paint work (IS0 12944-7:1998) Peintures et vernis - Anticorrosion des structures en acier par systmes de peinture - Partie 7: Excution et surveillance des travaux de peinture (IS0 1
8、2944-7:1998) Beschichtungsstoffe - Korrosionsschutz von Stahlbauten durch Beschichtungsstoffe - Teil 7: Ausfhrung und berwachung der Beschichtungsaibeiten (IS0 12944- 7:1998) This European Standard was approved by CEN on 13 November 1997. CEN members are bound to comply with the CENICENELEC Intemal
9、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 standards may be obtained on application to the Central Secretariat or to any CEN member. Th
10、is 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 notified to the Central Secretariat has the same status as the official versions. CEN members are t
11、he national standards bodies of Austria, Belgium, Czech Republic, Denmark. Finland, France, Gemany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Noway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMiTEE FOR STANDARDIZATION COMITE EUROPEEN DE NORMALISATION EUROPIS
12、CHES KOMITEE FOR NORMUNG Central Secretariat: rue de Stassart, 36 8-1050 Brussels O 1998 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN IS0 12944-7:1998 E STD-BSI BS EN IS0 129q4-7-ENGL 1998 D lb2qbb 0739109 3T2 D EN IS0 12944-7:1
13、998 I Corrected 1998-06-1 8 I Foreword The text of the International Standard IS0 12944-7:1998 has been prepared by Technical Committee ISOflC 35 “Paints and varnishes“ in collaboration with Technical Committee CENflC 139 “Paints and varnishes“, the secretariat of which is held by DIN. This European
14、 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 shall be withdrawn at the latest by November 1998. According to the CENKENELEC Internal Regulations, the nation
15、al standards organizations of the following countries are bound to implement this European Standard: Aum*a, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Endor
16、sement notice The text of the International Standard IS0 12944-7: 1998 was approved by CEN as a European Standard without any modification. NOTE: Normative references to International Standards are listed in annex ZA (normative). INTERNATIONAL STANDARD IS0 12944-7 First edition 1998-05-1 5 Paints an
17、d varnishes - Corrosion protection of steel structures by protective paint systems - Part 7: Execution and supervision of paint work Peintures et vernis - Anticorrosion des structures en acier par systmes de peinture - Partie 7: Excution et surveillance des travaux de peinture Reference number IS0 1
18、2944-7: 1998( E) EN IS0 12944-7:1998 Contents Page 1 2 3 3.1 3.2 3.3 4 4.1 4.2 5 5.1 5.2 5.3 5.4 6 6.1 6.2 6.3 7 7.1 7.2 7.3 7.4 scope 1 Normative references 1 Preconditions for the execution of the paint work 2 Qualification . 2 Health and safety and environmental protection 2 Condition of the subs
19、trate . 2 Coating materials 3 Supply . 3 Storage 3 Execution of the paint work . 3 General . 3 Application conditions 4 Application methods . 5 Evaluation before work commences . 5 Supervision of the paint work . 5 General . 5 Measurement and test instruments 6 Checking the paint coating . 6 Referen
20、ce areas . 6 General . 6 Previously coated surfaces 7 Reference area records . 7 Assessment of coating 7 Annex A Number of reference areas . 8 escrlptors: paints. vamishes. steel construction. corrosion. corrosion prevention. protective coatings. paint coats. painting . STD-BSI BS EN IS0 12744-7-ENG
21、L L778 Lb2qbb7 0737LL2 777 m EN IS0 12944-7:1998 Foreword IS0 (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
22、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 governmental, in liaison with ISO, also take part in the work. IS0 collaborates closely with the International
23、 Electrotechnical Commission (IEC) on all matters of electrotechnical 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 ca
24、sting a vote. International Standard IS0 12944-7 was prepared by Technical Committee ISOC 35, Paints and varnishes, Sub- committee SC 14, Protective paint systemsfor steel structures. IS0 12944 consists of the following parts under the general title Paints and varnishes - Corrosion protection of ste
25、el structures by protective paint systems: Parr I: Part 2: Part 3: Part 4: Part 5: Part 6: Part 7: Part 8: General introduction Ciassipcation of environments Design considerations Types of surface and surface preparation Protective paint systems Laboratory performance test methods Execution and supe
26、rvision of paint work Development of specifcations for new work and maintenance Annex A of this part of IS0 12944 is for information only. iii EN IS0 12944-7:1998 Introduction Unprotected steel in the atmosphere, in water and in soil is subjected to corrosion that may lead to damage. Therefore, to a
27、void 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 paint systems and covers, in the various pa
28、rts, 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 is necessary for owners of such struct
29、ures, planners, consultants, companies carrying out corrosion protection work, inspectors of protective coatings and manufacturers of coating materiais 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 compl
30、ete as possible, unambiguous and easily understandable to avoid difficulties and misunderstandings between the parties concerned with the practical implementation of protection work. This International Standard - IS0 12944 - is intended to give this information in the form of a series of instruction
31、s. 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. Although IS0 12944 does not deal with f
32、inancial and contractual questions, attention is drawn to the fact that, because of the considerable implications of inadequate corrosion protection, non-compliance with requirements and rcrommcndatiom given in this standard may result in serious financial consequences. IS0 12944-1 defines the overa
33、ll 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 12944 for a given project. This part of
34、IS0 12944 describes how paint work on steel structures is to be executed and supervised after the surface has been prepared in accordance with IS0 12944-4. Examples of protective paint systems suitable for this purpose are given in IS0 12944-5. iv STD-BSI BS EN IS0 12744-7-ENGL 1798 S Lb24bb9 073911
35、4 7bT W EN IS0 12944-71998 Paints and varnishes - Corrosion protection of steel structures by protective paint systems - Part 7: Execution and supervision of paint work 1 Scope 1.1 workshop or on site. This part of IS0 12944 deals with the execution and supervision of paint work on steel structures
36、in the This part of IS0 12944 does not apply to: the preparation of surfaces to be painted (see IS0 12944-4) and the supervision of such work, the application of metallic coatings, pre-treatment methods such as phosphating and chromating and paint application methods such as dipping, powder coating
37、or coil coating. Normative references The following standards contain provisions which, through reference in this text, constitute 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 bas
38、ed on this part of IS0 12944 are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and IS0 maintain registers of currently valid International Standards. IS0 1512:1991, IS0 1513:1992, IS0 2409: 1992, IS0 2808: 1997, IS0 46
39、24: 1978, IS0 8502-4: 1993. IS0 900 1 : 1994, IS0 9002: 1994, Paints and varnishes - Sampling of products in liquid or paste form. Paints and varnishes - Examinntion and preparation of samples for testing. Paints and varnishes - Cross-cut test. Paints and varnishes - Determination offilm thickness.
40、Paints and varnishes - Pull-off test for adhesion. Preparation of steel substrates before application of paints and related products - Tests for the assessment of surface cleanliness - Part 4: Guidance on the estimation of the probability of condensation prior to paint application. Qualily systems -
41、 Model for quality assurance in design, development, production, installation and servicing. Quality systems - Model for quality assurance in production, installation and servicing. 1 STD.BS1 BS EN IS0 12744-7-ENGL 1998 Lb24bb 0739115 bTb = EN IS0 12944-7:1998 IS0 12944- I : 1998, Paints and varnish
42、es - Corrosion protection of steel structures by protective paint systems Part I: General introduction. IS0 12944-4: 1998, Paints and varnishes - Corrosion protection of steel structures by protective paint systems - Part 4: Types of suflace and susace preparation. IS0 12944-5: 1998, Paints and varn
43、ishes - Corrosion protection of steel structures by protective paint systems - Part 5: Protective paint systems. IS0 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. 3 Prec
44、onditions for the execution of the paint work 3.1 Qualification 3.1.1 Companies contracted to apply protective paint systems to steel structures, and their personnel, shall be capable of carrying out the work properly and safely. Work requiring particular care with regard to its execution shall only
45、 be carried out by personnel having qualifications which have been certified by an approved body, provided no other agreements have been made between the parties concerned. 3.1.2 Where the contractor has a quality management system in operation, a quality plan shall be prepared by the contractor whi
46、ch includes his general standards of workmanship. A method statement shall be provided for each stage of the work. The contractor shall show that he will be able to achieve the specified quality level at each stage. Evidence for this is, for example, given by the use of a quality assurance system in
47、 accordance with IS0 9001 or IS0 9002. Unless otherwise agreed, the contractor shall provide the client with extracts of all execution and supervision standards given in his quality manual that are relevant to the Specification. 3.2 Condition of the substrate A protective paint system requires prope
48、r surface preparation, which depends on the initial and final condition of the surface. The respective requirements shall be specified in the painting specification and be capable of achievement. Methods of surface preparation are described in IS0 12944-4. The prepared surfaces shall be assessed wit
49、h regard to visual cleanliness, surface profile and chemical cleanliness, using the methods given in IS0 12944-4. The requirements for the supervision of these aspects of the work, the frequency of assessment, and the location of the assessment work shall be agreed between the parties concerned. If the condition of the surface differs from that described in the specification, the client shall be informed. The temperature of the surface shall be without doubt above the dew point of the surrounding air, unless otherwise specified in the paint manufacturers t
