1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 13523-20:2011Coil coated metals TestmethodsPart 20: Foam adhesionCopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo rep
2、roduction or networking permitted without license from IHS-,-,-BS EN 13523-20:2011 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 13523-20:2011.It supersedes BS EN 13523-20:2004 which is withdrawn.The UK participation in its preparation was entrusted to Technic
3、alCommittee 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 necessaryprovisions of a contract. Users are responsible for its correctapplication. The Bri
4、tish Standards Institution 2011ISBN 978 0 580 71643 0ICS 25.220.60Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 December 2011.Amendments issued since publicat
5、ionDate T e x t a f f e c t e dCopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 13523-20:2011EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13523-20 December 2011 ICS
6、25.220.60 Supersedes EN 13523-20:2004English Version Coil coated metals - Test methods - Part 20: Foam adhesion Tles prlaques - Mthodes dessai - Partie 20: Adhrence des mousses Bandbeschichtete Metalle - Prfverfahren - Teil 20: Haftfestigkeit von Schaum This European Standard was approved by CEN on
7、15 October 2011. 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 any alteration. Up-to-date lists and bibliographical references concerning such national standards may
8、 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 language made by translation under the responsibility of a CEN member into its own language and notified t
9、o 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, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Lux
10、embourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2011 CEN All ri
11、ghts of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13523-20:2011: ECopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 1
12、3523-20:2011EN 13523-20:2011 (E) 2 Contents Page Foreword 31 Scope 52 Normative references 53 Terms and definitions . 54 Material . 55 Principle 56 Apparatus . 57 Sampling . 58 Test specimens 69 Procedure . 69.1 Preparation . 69.2 Adhesion testing 69.2.1 Dry adhesion 69.2.2 Wet adhesion 610 Expressi
13、on of results 611 Precision . 612 Test report 7Bibliography 8Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 13523-20:2011EN 13523-20:2011 (E) 3 Foreword This document (EN
14、13523-20:2011) has been prepared by 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 June 2012, and c
15、onflicting national standards shall be withdrawn at the latest by June 2012. 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 docu
16、ment supersedes EN 13523-20:2004. EN 13523, Coil coated metals Test methods, consists of the following parts: Part 0: General introduction and list of test methods; Part 1: Film thickness; Part 2: Specular gloss; Part 3: Colour difference - Instrumental comparison; Part 4: Pencil hardness; Part 5: R
17、esistance to rapid deformation (impact test); Part 6: Adhesion after indentation (cupping test); Part 7: Resistance to cracking on bending (T-bend test); Part 8: Resistance to salt spray (fog); Part 9: Resistance to water immersion; Part 10: Resistance to fluorescent UV radiation and water condensat
18、ion; Part 11: Resistance to solvents (rubbing test); Part 12: Resistance to scratching; Part 13: Resistance to accelerated ageing by the use of heat; Part 14: Chalking (Helmen method); Part 15: Metamerism; Part 16: Resistance to abrasion; Part 17: Adhesion of strippable films; Copyright European Com
19、mittee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 13523-20:2011EN 13523-20:2011 (E) 4 Part 18: Resistance to staining; Part 19: Panel design and method of atmospheric exposure testing; Part 20: Fo
20、am adhesion; Part 21: Evaluation of outdoor exposed panels; Part 22: Colour difference - Visual comparison; Part 23: Colour stability in humid atmospheres containing sulfur dioxide; Part 24: Resistance to blocking and pressure marking; Part 25: Resistance to humidity; Part 26: Resistance to condensa
21、tion of water; Part 27: Resistance to humid poultice (Cataplasm test); Part 29: Resistance to environmental soiling (Dirt pick-up and striping). The main technical changes are: The description of the foam is updated; The description of scraping tool is clarified. According to the CEN/CENELEC Interna
22、l 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembou
23、rg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
24、BS EN 13523-20:2011EN 13523-20:2011 (E) 5 1 Scope This European Standard describes a laboratory method for testing foam adhesion to an organic coating on a metallic substrate under dry and wet conditions. 2 Normative references The following referenced documents are indispensable for the application
25、 of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 13523-0:2001, Coil coated metals Test methods Part 0: General introduction and list of test methods 3 Terms and defini
26、tions For the purposes of this document, the terms and definitions given in EN 13523-0:2001 apply. 4 Material 4.1 Foam. Organic insulation material created by mixing polyols and isocyanates to make (for example) polyurethane (PUR) or polyisocyanurate (PIR) foams. Mixing and handling of foams shall b
27、e carried out in line with the foam manufacturers recommendations. NOTE In the industrial process of sandwich panel manufacture, the constituent liquids of the foam are mixed just prior to application, which then expand rapidly to fill the gap between two outward facing sheets of coated metal, usual
28、ly in a continuous process. 5 Principle The foam adhesion is tested by pulling off the foam from the coil coated metal sheet. The test has only two possible results: “passed” or “failed”. 6 Apparatus Ordinary laboratory apparatus and glassware, together with the following: 6.1 Humidity cabinet capab
29、le of being maintained at 100 % relative humidity at a temperature of (40 2) C. 7 Sampling See EN 13523-0. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS EN 13523-20:2011EN 1
30、3523-20:2011 (E) 6 8 Test specimens See EN 13523-0 for preparation and conditioning of test panels. 9 Procedure 9.1 Preparation Cut the samples of coated metal sheet into workable pieces. Mix the components of the foam together in a blender, according to the suppliers specification (for example 20 g
31、 polyol and 26 g isocyanate, during 10 s). Pour a small quantity of the mixture over the surface to be tested. As the mixture reacts immediately, the application of the mixture shall be done within 20 s after mixing, unless otherwise specified by the supplier. After the application, leave the sample
32、s under ambient conditions, for 30 min to 40 min or as otherwise specified, before testing as described below. 9.2 Adhesion testing 9.2.1 Dry adhesion 9.2.1.1 Pull off the polymerised foam (by hand) from one sample. 9.2.1.2 If at the coating/foam interface none of the original coating surface is rev
33、ealed, a second sample shall be held at room temperature for 24 h. Pull off the polymerised foam (by hand) from this sample. Lightly scrape the remaining foam layer with typically a blunt knife or finger nail. If this scraping cannot reveal the original coating, dry adhesion is reported as “passed”.
34、 9.2.2 Wet adhesion 9.2.2.1 Put a sample prepared as described in 9.1 in boiling water for 1 h. After removal of excess water, pull off the foam (by hand). 9.2.2.2 If at the coating/foam interface none of the original coating surface is revealed after the boiling test, put a second sample as describ
35、ed in 9.1 in the humidity cabinet (100 % relative humidity at 40 C) for 24 h. After removal of excess water, pull off the foam (by hand). If at the coating/foam interface none of the original coating surface is revealed, wet adhesion is reported as “passed”. 10 Expression of results The results shal
36、l be expressed either by “passed” if both dry and wet adhesion tests passed or by “failed” indicating at which step the adhesion test failed. 11 Precision No precision data are currently available. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleN
37、o reproduction or networking permitted without license from IHS-,-,-BS EN 13523-20:2011EN 13523-20:2011 (E) 7 12 Test report The test report shall contain at least the following information: a) all details necessary to identify the product tested; b) a reference to this part of EN 13523 (EN 13523-20
38、); c) specification of the foam components; d) result of the test, as indicated in clause 10; e) any deviation from the test method specified; f) date of the test. Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permi
39、tted without license from IHS-,-,-BS EN 13523-20:2011EN 13523-20:2011 (E) 8 Bibliography 1 EN 1396, Aluminium and aluminium alloys Coil coated sheet and strip for general applications Specifications 2 EN 10169, Continuously organic coated (coil coated) steel flat products Technical delivery conditio
40、ns Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-This page deliberately left blankCopyright European Committee for Standardization Provided by IHS under license with CENNot for
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