1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 1965-1:2011Structural adhesives CorrosionPart 1: Determination and classification ofcorrosion to a copper substrateBS EN 1965-1:2011 BRITISH STANDARDNational forewordThis B
2、ritish Standard is the UK implementation of EN 1965-1:2011. Itsupersedes BS EN 1965-1:2001 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee PRI/52, Adhesives.A list of organizations represented on this committee can beobtained on request to its secretary
3、.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2011ISBN 978 0 580 72248 6ICS 77.060; 83.180Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was publish
4、ed under the authority of theStandards Policy and Strategy Committee on 30 June 2011.Amendments issued since publicationDate Text affectedBS EN 1965-1:2011EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 1965-1 May 2011 ICS 77.060; 83.180 Supersedes EN 1965-1:2001English Version Structural adhes
5、ives - Corrosion - Part 1: Determination and classification of corrosion to a copper substrate Adhsifs structuraux - Corrosion - Partie 1: Dtermination et classification de la corrosion dun substrat en cuivre Strukturklebstoffe - Korrosion - Teil 1: Bestimmung und Klassifikation der Korrosion eines
6、Kupfermaterials This European Standard was approved by CEN on 10 March 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 bibli
7、ographical 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 language made by translation under the respons
8、ibility 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, Denmark, Estonia, Finland, France, Germany, Gree
9、ce, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, 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 Manageme
10、nt Centre: Avenue Marnix 17, B-1000 Brussels 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1965-1:2011: EBS EN 1965-1:2011EN 1965-1:2011 (E) 2 Contents Page Foreword 31 Scope 42 Normative references 43 Terms and definitions
11、.44 Principle 45 Products and materials .46 Procedure .56.1 General 56.2 Preparation of the copper substrate 56.3 Determination .57 Discolouration/corrosion 68 Report .6BS EN 1965-1:2011EN 1965-1:2011 (E) 3 Foreword This document (EN 1965-1:2011) has been prepared by Technical Committee CEN/TC 193 “
12、Adhesives”, the secretariat of which is held by AENOR. 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 2011, and conflicting national standards shall be withdrawn at the latest by Novembe
13、r 2011. 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 1965-1:2001. SAFETY STATEMENT Persons using this d
14、ocument should be familiar with the normal laboratory practice, if applicable. This document does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user to establish appropriate safety and health practices and to ensure compliance wit
15、h any regulatory conditions. ENVIRONMENTAL STATEMENT It is understood that some of the material permitted in this standard may have negative environmental impact. As technological advantages lead to acceptable alternatives for these materials, they will be eliminated from this standard to the extent
16、 possible. 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, France, Germany, Greece, Hungary, Icela
17、nd, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 1965-1:2011EN 1965-1:2011 (E) 4 1 Scope This European Standard describes a method to determine the ability of a liqui
18、d adhesive to corrode a copper substrate under heat ageing conditions. Temperatures and ageing periods are chosen to ensure the maximum differentiation between the corrosivity of different adhesives and are not intended to represent any particular service condition. 2 Normative references The follow
19、ing referenced documents are indispensable for the application 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 923:2005+A1:2008, Adhesives Terms and definitions ISO 69
20、58, Wrought copper and copper alloys Drawn rectangular bars Dimensions and form tolerances 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 923:2005+A1:2008 and the following apply. 3.1 corrosion destructive attack on metals which can be chemical or el
21、ectrochemical in nature NOTE The described method measures essentially only the chemical attack. The electrochemical contribution is eliminated as far as possible by ensuring that there is no electrolyte and that the copper substrate is, as far as practicable, free from metallic impurities which can
22、 result in the formation of a galvanic cell. 4 Principle An abraded and polished copper substrate is coated with a thin film of the liquid adhesive and then aged for 24 h in dry heat at 50 C or 100 C. Following this the surface is examined and the extent of tarnishing and/or corrosion on the basis o
23、f discolouration. 5 Products and materials 5.1 Solvent. Any sulfur free, and water free, hydrocarbon based solvent, which has been shown to cause no discolouration of the abraded copper substrate at 50 C is suitable. The solvent should be able to dissolve the uncured adhesive 5.2 Copper substrate, p
24、late. Recommended cross section 12 mm 2 mm, ISO 6958 E-Cu F30, produced by electrolysis. BS EN 1965-1:2011EN 1965-1:2011 (E) 5 5.3 Abrasive cloth or emery paper. Grade P2401)silicon carbide. 5.4 Liquid abrasive. (Silicon carbide) grade 1501). 5.5 Stainless steel tweezers. 5.6 Cotton wool. 6 Procedur
25、e 6.1 General Use a minimum of three copper plates for each evaluation. 6.2 Preparation of the copper substrate Lay the abrasive cloth or emery paper on a flat surface and wet it with the solvent. Place the copper plate on top on this and cover with the filter paper, to ensure that the copper surfac
26、e is protected from contamination by fingers. Rub the copper plate in a criss-cross pattern against the abrasive material until a uniform abraded surface is achieved. It is necessary to abrade all six plane surfaces of the test plate beginning with the edges and finishing with the faces. Following t
27、his abrasion, store the copper plate in solvent. 6.3 Determination Remove the copper plate from the solvent, handling only with the tweezers, and place on a clean glass plate. Coat the copper plate with the liquid abrasive and abrade with a piece of cotton wool which has been moistened with a drop o
28、f solvent. Finally, polish vigorously with clean, dry, cotton wool, repeating the polishing with fresh pieces of cotton wool until one remains clean and white following polishing. On completion of the final abrasion, immediately immerse the copper plate in a shallow dish of the adhesive, again handl
29、ing with tweezers, and place in a oven at 50 C or 100 C for 24 h. Remove the copper plate from the dish with the tweezers and carefully wash in solvent to remove uncured material, then dry it with the filter paper. It is essential that the test is repeated if, during any of the above procedures or t
30、esting, the copper plate: a) is touched by fingers; b) comes into contact with water; or c) comes into contact with any other material; d) or if the appearance of the edge of the plate is significantly different from that of the face. 1) Grade defined by Fdration Europenne des Fabricants de Produits
31、 Abrasifs (FEPA-43).BS EN 1965-1:2011EN 1965-1:2011 (E) 6 7 Discolouration/corrosion The discolouration/corrosion is graded as in Table 1, on examination of the copper surface using normal vision. Table 1 Classification of discolouration/corrosion Corrosion grade Significance Description 0 No tarnis
32、h or corrosion Unchanged 1 Light tarnish Weak/pale orange, hardly changed when compared with a lightly polished copper substrate, can also be dark orange. 2 Moderate tarnish Wine-red, lavender-blue, a lot of lavender-blue and/or silver with a red-wine covering. Silver. Brass coloured or golden. 3 He
33、avy tarnish Magenta with a brass coloured surface. A lot of red and green shimmer (Butterfly) but no grey. 4 Corrosion Transparent black or dark grey or brown with the “Butterfly“ with a slight green shimmer. Graphite black or dull black. Shiny or pitch black. 8 Report The test report shall include:
34、 a) a reference to this European Standard, i.e. EN 1965-1; b) type and designation of the product tested; c) description of the copper plate preparation procedure; d) description of the type and thickness of the copper plates; e) corrosion/discolouration grade ranking; f) details of any operations n
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