1、BSI Standards PublicationBS EN 13438:2013Paints and varnishes Powderorganic coatings for hot dipgalvanised or sherardisedsteel products for constructionpurposesBS EN 13438:2013 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 13438:2013. Itsupersedes BS EN 13438:
2、2005 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee STI/27, Paint systems for metallic substrates.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the nece
3、ssaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2013. Published by BSI StandardsLimited 2013ISBN 978 0 580 73754 1ICS 25.220.60Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was
4、published under the authority of theStandards Policy and Strategy Committee on 30 September 2013.Amendments issued since publicationDate Text affectedBS EN 13438:2013EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13438 September 2013 ICS 25.220.60 Supersedes EN 13438:2005English Version Paints
5、 and varnishes - Powder organic coatings for hot dip galvanised or sherardised steel products for construction purposes Peintures et vernis - Revtements de poudre organique pour produits en acier galvanis chaud ou shrardis utiliss dans la construction Beschichtungsstoffe - Pulverbeschichtungen fr fe
6、uerverzinkte oder sherardisierte Stahlerzeugnisse fr Bauzwecke This European Standard was approved by CEN on 19 July 2013. 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 with
7、out any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other
8、language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, De
9、nmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITT
10、EE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13438:2013: EBS EN 13438:201
11、3EN 13438:2013 (E) 2 Contents Page Foreword . 4 Introduction 5 1 Scope 6 2 Normative references . 6 3 Terms and definitions 7 4 Substrate material 8 5 Coating powder 8 5.1 Identification . 8 5.2 Storage . 8 5.3 Performance requirements 9 5.3.1 General . 9 5.3.2 Colour . 9 5.3.3 Gloss . 9 5.3.4 Adhes
12、ion 9 5.3.5 Resistance to scratching . 9 5.3.6 Resistance to deformation . 9 5.3.7 Resistance to mortar 9 5.3.8 Resistance to weathering 9 5.3.9 Resistance to humidity 10 5.3.10 Resistance to sulfur dioxide 10 5.3.11 Permeability 10 5.3.12 Resistance to salt spray 10 5.4 Health and safety informatio
13、n . 10 6 Application . 11 6.1 Cleaning and pretreatment of the hot dip galvanised or sherardised substrate . 11 6.2 Coating powder 11 6.3 Application of coating powder 11 6.4 Significant surfaces of coated article 11 6.5 Performance requirements of the powder coated article . 11 6.5.1 General . 11 6
14、.5.2 Surface appearance . 11 6.5.3 Colour . 11 6.5.4 Thickness . 11 6.5.5 Gloss . 12 6.5.6 Adhesion 12 7 Certificate of conformity 12 Annex A (normative) Methods of test for coating powders 15 A.1 General . 15 A.2 Sampling . 15 A.3 Coated test panels . 15 A.3.1 Material and dimensions 15 A.3.2 Pretr
15、eatment . 15 A.3.3 Coating of the test panels 15 A.3.4 Determination of thickness 15 A.3.5 Appearance and conditioning . 16 A.4 Test procedures on coated test panels . 16 A.4.1 Surface . 16 BS EN 13438:2013EN 13438:2013 (E) 3 A.4.2 Colour . 16 A.4.3 Gloss . 16 A.4.4 Adhesion . 16 A.4.5 Resistance to
16、 scratching . 17 A.4.6 Resistance to deformation . 17 A.4.7 Resistance to mortar 17 A.4.8 Resistance to weathering. 17 A.4.9 Resistance to humidity 17 A.4.10 Resistance to sulfur dioxide 18 A.4.11 Permeability 18 A.4.12 Resistance to salt spray . 18 Annex B (informative) Guidance on cleaning and pre
17、treatment processes . 19 B.1 Cleaning 19 B.2 Pretreatment . 19 B.3 Types of pretreatment 19 B.3.1 Conversion and drying of the conversion coating (chemical pretreatment) . 19 B.3.2 Mechanical pretreatment 20 Annex C (informative) Guidelines on the powder coating process . 21 Annex D (normative) Meth
18、ods of test for powder coatings . 22 D.1 General . 22 D.2 Test piece preparation . 22 D.3 Test procedures on finished articles . 22 D.3.1 Surface appearance . 22 D.3.2 Colour . 22 D.3.3 Thickness . 22 D.3.4 Gloss . 22 D.3.5 Adhesion . 22 D.4 Test procedures on test panels . 23 Annex E (informative)
19、Guidelines on the care and protection of powder coated hot dip galvanised or sherardised steel components 24 E.1 Packing and handling. 24 E.2 Tapes 24 Bibliography 25 BS EN 13438:2013EN 13438:2013 (E) 4 Foreword This document (EN 13438:2013) has been prepared by Technical Committee CEN/TC 139 “Paint
20、s 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 2014, and conflicting national standards shall be withdrawn at the latest by March
21、2014. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 13438:2005. In relation to EN 13438:2005, the follow
22、ing main amendments have been made: a) the term defined as “test sample“ has been removed; b) a new term “substrate“ has been introduced; c) a paragraph in Clause 4 includes references to EN ISO 14713-2 and EN ISO 14713-3 to optimise design of articles sent for processing to this standard; d) tolera
23、nce limits on gloss requirements has been tightened slightly for gloss levels over 50 units (reduced from 10 units to 7 units) and “Table 1 Gloss requirements“ removed; e) Clause 6 has been edited to clarify references to “cleaning“ as distinct from “preparation“ or “pretreatment“; f) reference to (
24、old) Table 1 in 6.5.5 “Gloss“ has been removed; g) an adhesion test on the finished powder coated article is now not mandatory (see revised 6.5.6) and if required should be specified; h) a new “Table 1 Summary of tests“ has been included for ease of reference, after Clause 7; i) the minimum thicknes
25、s of coated test panels used for tests for mechanical properties has been increased from 0,3 mm to 1,0 mm (see A.3.1); j) reference to updated standards have been included, e.g. replacement of ISO 7724-3 with EN ISO 11664-4 (see A.4.2) and replacement of ISO 1518 with EN ISO 1518-1 (see A.4.5); k) A
26、nnex B has been edited to clarify references to “cleaning“ and “pretreatment“ and the content reduced; l) the possibility of an adhesion test on finished article now included in Annex D (see D.3.5); m) the content of Annex E has been reduced reference has been made to EN 15773 for further informatio
27、n. 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, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France,
28、Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 13438:2013EN 13438:2013 (E) 5 Introduction This European Standard has been pro
29、duced as a result of the growing demand for products made of powder coated hot dip galvanised or sherardised steel. These products offer a combination of corrosion resistance and decorative appearance. It is assumed in the drafting of this standard that the specified test methods will be applied by
30、those who are suitably trained and supervised. This European Standard has been written from a coating performance perspective and does not seek to set out one method of powder coating hot dip galvanised or sherardised steel products. Nevertheless, in order to facilitate production of the best qualit
31、y powder coated hot dip galvanised or sherardised articles, experience has shown how important it is that sufficient dialogue between the client, specifier, designer, fabricator, galvaniser or sherardiser and powder coating applicator takes place at the earliest stages of the project and that, where
32、 possible, timescales set out for processing of the work are practical and adhered to. It is strongly recommended that the guidance document for supply of duplex coatings, EN 15773, Industrial application of powder organic coatings to hot dip galvanized or sherardized steel articles duplex systems S
33、pecifications, recommendations and guidelines, is used in combination with this standard when specifying for duplex systems. BS EN 13438:2013EN 13438:2013 (E) 6 1 Scope This European Standard specifies performance requirements for organic coating powders and powder organic coatings as applied to fin
34、ished articles (hot dip galvanised or sherardised steel products) for construction purposes. Hot dip galvanised steel products can be articles that have been batch hot dip galvanised (hot dip galvanised after fabrication) or articles consisting of continuously hot dip galvanised sheet which is then
35、subsequently fabricated. This European Standard does not set out any performance requirements for the powder coating process itself. Guidance on cleaning and pretreatment of the hot dip galvanised or sherardised steel products prior to powder coating is provided. This European Standard does not appl
36、y to articles with zinc-aluminium coatings or aluminium-zinc coatings, or to continuously hot dip galvanised wire. This standard does not apply to organic coating powders and powder organic coatings as applied to hot dip galvanised or sherardised steel products (i.e. duplex coated articles) for whic
37、h there are specific standards, which might include additional requirements or requirements which are different from those of this standard. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For
38、 dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 10346, Continuously hot-dip coated steel flat products Technical delivery conditions EN 13811, Sherardizing Zinc diffusion coatings on ferro
39、us products Specification EN ISO 1461, Hot dip galvanized coatings on fabricated iron and steel articles Specifications and test methods (ISO 1461) EN ISO 1518-1, Paints and varnishes Determination of scratch resistance Part 1: Constant loading method (ISO 1518-1) EN ISO 1519, Paints and varnishes B
40、end test (cylindrical mandrel) (ISO 1519) EN ISO 2178, Non-magnetic coatings on magnetic substrates Measurement of coating thickness Magnetic method (ISO 2178) EN ISO 2409, Paints and varnishes Cross-cut test (ISO 2409) EN ISO 2808, Paints and varnishes Determination of film thickness (ISO 2808) EN
41、ISO 2810, Paints and varnishes Natural weathering of coatings Exposure and assessment (ISO 2810) EN ISO 2813, Paints and varnishes Determination of specular gloss of non-metallic paint films at 20, 60 and 85 (ISO 2813) EN ISO 3231, Paints and varnishes Determination of resistance to humid atmosphere
42、s containing sulfur dioxide (ISO 3231) EN ISO 3668, Paints and varnishes Visual comparison of the colour of paints (ISO 3668) EN ISO 4618:2006, Paints and varnishes Terms and definitions (ISO 4618:2006) BS EN 13438:2013EN 13438:2013 (E) 7 EN ISO 6270-1, Paints and varnishes Determination of resistan
43、ce to humidity Part 1: Continuous condensation (ISO 6270-1) EN ISO 8130-9, Coating powders Part 9: Sampling (ISO 8130-9) EN ISO 9227, Corrosion tests in artificial atmospheres Salt spray tests (ISO 9227) EN ISO 11341:2004, Paints and varnishes Artificial weathering and exposure to artificial radiati
44、on Exposure to filtered xenon-arc radiation (ISO 11341:2004) EN ISO 11664-4, Colorimetry Part 4: CIE 1976 L*a*b Colour space (ISO 11664-4) ISO 10474, Steel and steel products Inspection documents 3 Terms and definitions For the purposes of this document, the terms and definitions contained in EN ISO
45、 4618:2006 and the following apply. 3.1 finishing coat final coat of a coating system SOURCE: EN ISO 4618:2006, 2.108 3.2 conversion coating layer produced on a hot dip galvanised or sherardised steel surface by a chemical treatment 3.3 powder coating dry film obtained by application and fusing of a
46、 coating powder 3.4 coating powder solvent-free coating material in powder form which, after fusing and possible curing, gives a continuous film 3.5 test piece single item, representative of the work being processed 3.6 significant surface part of the coated article on which the coating is essential
47、 for serviceability of the article 3.7 specifier person specifying the performance requirements for the coating and significant surfaces of the article 3.8 coating applicator company responsible for applying the coating powder onto a substrate 3.9 substrate surface to which a coating material is app
48、lied or is to be applied BS EN 13438:2013EN 13438:2013 (E) 8 SOURCE: EN ISO 4618:2006, 2.219 4 Substrate material The substrate shall be hot dip galvanised steel in accordance with EN ISO 1461, EN 10346, or sherardised steel in accordance with EN 13811. If required, steel sections shall be free from
49、 surface imperfections such as die lines and laminations. Unless otherwise agreed, the preparation of the surface of the hot dip galvanised article, such that the surface is suitable for pretreatment and application of powder to the surface, shall be the responsibility of the coating applicator (see 3.8). The galvaniser or the sherardiser and coating applicator should be consulted about the design of the steel products intended for galvanising or sherardising after construction, prior to the fabricatio
