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1、BRITISH STANDARD BS EN 13603:2002 Copper and copper alloys Test methods for assessing protective tin coatings on drawn round copper wire for electrical purposes The European Standard EN 13603:2002 has the status of a British Standard ICS 25.220.40; 77.150.30 ? Licensed Copy: sheffieldun sheffieldun,
2、 na, Sun Oct 29 10:08:51 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS EN 13603:2002 This British Standard, having been prepared under the direction of the Engineering Sector Policy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 20 Septemb
3、er 2002 BSI 20 September 2002 ISBN 0 580 40443 9 National foreword This British Standard is the official English language version of EN 13603:2002. The UK participation in its preparation was entrusted by Technical Committee NFE/34, Copper and copper alloys, to Subcommittee NFE/34/1, Wrought and unw
4、rought copper and copper alloys, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be fo
5、und in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are res
6、ponsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep
7、 the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 14, an inside back cover and a back cover. The BSI copyright date displayed
8、in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 10:08:51 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13603 March 2002 ICS
9、 25.220.40; 77.150.30 English version Copper and copper alloys - Test methods for assessing protective tin coatings on drawn round copper wire for electrical purposes Cuivre et alliages de cuivre - Mthodes dvaluation des revtements en tain sur les fils ronds tirs en cuivre pour usages lectriques Kup
10、fer und Kupferlegierungen - Prfverfahren zur Beurteilung von Schutzberzgen aus Zinn auf gezogenen Runddrhten aus Kupfer fr die Anwendung in der Elektrotechnik This European Standard was approved by CEN on 22 February 2002. CEN members are bound to comply with the CEN/CENELEC Internal Regulations whi
11、ch 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 Management Centre or to any CEN member. This European Stand
12、ard 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 Management Centre has the same status as the official versions. CEN members are the national standar
13、ds bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITE
14、E FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 2002 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13603:2002 E Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 10:08:51 GMT+00:00 2006, Uncontrolled Copy,
15、 (c) BSI EN 13603:2002 (E) Contents page Foreword . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Introduction . . . . . . . . . . . . . . . . . . . . . . . . .4 1Scope . . . . . . . . . . . . . . . . . . . . . . . . . .4 2Normative references . . . . . . . . . . . . . .4 3Terms and definitio
16、ns . . . . . . . . . . . . . .4 4Thickness of the unalloyed tin coating .5 4.1 Principle . . . . . . . . . . . . . . . . . . . . . . . . .5 4.2 Reagents and materials . . . . . . . . . . . . . .5 4.3 Apparatus . . . . . . . . . . . . . . . . . . . . . . . .5 4.4 Preparation of the test piece . . . .
17、 . . . . . .7 4.5 Procedure for determining the thickness of unalloyed tin coatings . . . . . . . . . . . . . . .7 4.6 Expression of results . . . . . . . . . . . . . . . .9 5Continuity of the tin coating . . . . . . . . .10 5.1 Principle . . . . . . . . . . . . . . . . . . . . . . . . .10 page 5.2
18、Test solution . . . . . . . . . . . . . . . . . . . . . .10 5.3 Reference solution . . . . . . . . . . . . . . . . .10 5.4 Preparation of the test piece . . . . . . . . . .10 5.5 Cleaning of the test piece . . . . . . . . . . . .11 5.6 Immersion for testing . . . . . . . . . . . . . . . .11 5.7 Dete
19、rmination . . . . . . . . . . . . . . . . . . . . .11 6Adherence of the tin coating . . . . . . . . .12 6.1 Principle . . . . . . . . . . . . . . . . . . . . . . . . .12 6.2 Stock solution . . . . . . . . . . . . . . . . . . . . .12 6.3 Test solution . . . . . . . . . . . . . . . . . . . . . .12 6.4
20、 Preparation of the test piece . . . . . . . . . .12 6.5 Cleaning of the test piece . . . . . . . . . . . .13 6.6 Immersion for testing . . . . . . . . . . . . . . . .13 6.7 Examination . . . . . . . . . . . . . . . . . . . . . .13 7Test report . . . . . . . . . . . . . . . . . . . . . . .13 Bibliog
21、raphy . . . . . . . . . . . . . . . . . . . . . . . . .14 2 Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 10:08:51 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13603:2002 (E) Foreword This document EN 13603:2002 has been prepared by Technical Committee CEN/TC 133 “Copper and copper alloys“
22、, 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 September 2002, and conflicting national standards shall be withdrawn at the latest by September 2002. Wi
23、thin its programme of work, Technical Committee CEN/TC 133 requested CEN/TC 133/WG 5 “Copper for electrical purposes“ to prepare the following standard: EN 13603, Copper and copper alloys Test methods for assessing protective tin coatings on drawn round copper wire for electrical purposes. According
24、 to the CEN/CENELEC Internal Regulations, 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, Malta, Netherlands, Norway, Portu
25、gal, Spain, Sweden, Switzerland and United Kingdom. 3 Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 10:08:51 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13603:2002 (E) Introduction In preparing this document CEN/TC 133/WG 5 agreed to study carefully existing standards and to combine the b
26、est test methods for assessing tin coatings into a single European Standard. The following standards were considered: ISO 2177 : 1985; ASTM B 33 : 1981, clauses 7 and 8; BS 4109 : 1970, clause 14; DIN 51213 : 1970, clause 6. 1 Scope This European Standard specifies methods for assessing the tin coat
27、ing on drawn round copper wire for the manufacture of electrical conductors, e.g. according to EN 13602. Standard includes test methods for the determination of the following characteristics: a)thickness of the unalloyed tin coating; b)continuity of the tin coating; c)adherence of the tin coating. W
28、ARNING This standard can involve the use of hazardous materials, operations, and equipment. This standard does not purport to address all of the safety problems associated with their use. It is the responsi- bility of the user of this standard to establish appropriate safety and health practices and
29、 determine the applicability of regulatory limitations prior to use. 2 Normative references This European Standard incorporates, by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate places in the text, and the publications are lis
30、ted hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references, the latest edition of the publication referred to applies (including amendments). EN
31、610, Tin and tin alloys Ingot tin. EN 13602, Copper and copper alloys Drawn, round copper wire for the manufacture of electrical conductors. NOTE Informative references to documents used in the preparation of this standard, and cited at the appropriate places in the text, are listed in the bibliogra
32、phy. 3 Terms and definitions For the purposes of this European Standard, the following terms and definitions apply. 3.1 unalloyed tin coating layer of pure tin on the surface of tinned wire 4 Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 10:08:51 GMT+00:00 2006, Uncontrolled Copy, (c) BSI E
33、N 13603:2002 (E) 3.2 alloyed tin coating diffusion layer of copper and tin formed at the copper wire and tin coating interface during tinning and subsequent drawing and annealing processes 3.3 total tin coating sum of the thicknesses of the unalloyed tin coating and the alloyed tin coating 3.4 measu
34、ring area area of the surface over which a single measurement is made 4 Thickness of the unalloyed tin coating 4.1 Principle Anodic dissolution of a well-defined area of the unalloyed coating using a suitable electrolyte, followed by detection of the virtually complete dissolution of the unalloyed c
35、oating by a rapid change in cell voltage. Calculation of the unalloyed coating thickness from the quantity of electricity (in coulombs) used, which can in turn be calculated from: a)the time interval between the start of the test and the first rapid change of cell voltage, if it is conducted at cons
36、tant current density; or b)the integrated quantity of electricity used in dissolving the unalloyed coating. 4.2 Reagents and materials 4.2.1 Electrolyte, either a hydrochloric acid electrolyte or an electrolyte recommended by the instrument manufac- turer. For the hydrochloric acid electrolyte dilut
37、e 170 ml of hydrochloric acid (HCl), = 1,18 g/ml, to 1 000 ml with deionised water. NOTE The unalloyed tin coating dissolves anodically at an efficiency of nearly 100 %; for determination of the electrolyte efficiency, see 4.5.6. WARNING Hydrochloric acid causes burns and is irritating to the respir
38、atory system. Avoid breathing the vapour and prevent contact with eyes and skin. This electrolyte dissolves tin coatings at very low cell voltages at which there is no anodic attack on the substrates when they are exposed at the end of the test. 4.2.2 Tin, tin grade in accordance with EN 610. 4.3 Ap
39、paratus 4.3.1 General Suitable instruments may be constructed from readily available components, alternatively a proprietary instrument may be used. 5 Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 10:08:51 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13603:2002 (E) 4.3.2 Direct reading ins
40、truments Proprietary direct reading instruments are available for use with electrolytes recommended by the manufacturer. The calculation of thickness of tin coating from current density is made electronically. The instrument shall have some means of indicating when the unalloyed tin coating has been
41、 fully removed. 4.3.3 Other instruments Instruments other than proprietary direct reading instruments record the quantity of electricity, in coulombs, used in dissolving the unalloyed coating from the measuring area, usually in arbitrary units, from which the thickness can be calculated using factor
42、s or tables. 4.3.4 Electrolytic cell The electrolytic cell consists of a container for the electrolyte, a cathode and an anode which is the test sample. The container, if it is made of metal, for example stainless steel, can serve as the cathode. If the container is made of insulating material, a se
43、parate cathode is required. Also required are a device for supporting the appropriate length of test sample and an agitation mechanism. Depending on the wire diameter, the test sample may be a straight length of wire or, if necessary to obtain sufficient surface area for smaller diameter wires, a ho
44、lding device such as that shown schematically in Figure 1 is required. A magnetic stirrer or similar system shall be used to provide agitation. Key 1 Tee-frame to support test piece of non-conducting material, manufactured from nylon or other plastics 2 Test piece 3 Test piece connection (anode) 4 C
45、athode connection 5 Electrolyte level 6 Test piece length L 7 Electrolyte 8 Non-metallic pin 9 Cathode (stainless steel or lead), container (beaker) Figure 1 Alternative method for supporting fine wire or wire which cannot be straightened 6 Licensed Copy: sheffieldun sheffieldun, na, Sun Oct 29 10:0
46、8:51 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN 13603:2002 (E) 4.4 Preparation of the test piece Select a suitable length of test sample in order to provide the appropriate test piece area for exposure to the electrolyte. If necessary, clean the test surface with a suitable organic solvent (see 4
47、.5.4.5). NOTE Care should be taken to avoid removal of metal during the cleaning operation. 4.5 Procedure for determining the thickness of unalloyed tin coatings 4.5.1 General If commercial equipment is used, follow the manufacturers instructions with respect to the operating procedure for measureme
48、nt, the electrolyte and, if necessary, calibration. Appropriate attention shall be given to the factors listed in 4.5.4. The performance of the instrument shall be checked using a reference specimen of pure tin wire. A tin grade in accordance with EN 610 shall be used. The test shall be carried out
49、in accordance with 4.5.6. If the instrument readings or the calculation of K give an electrolytic efficiency of equal to or greater than 98 %, the instrument may be used without further adjustment. Otherwise, the cause of discrepancy shall be remedied. Proprietary instruments shall be calibrated in accordance with the manufacturers instructions. 4.5.2 Determination of measuring area For the determination of the measuring area the length L of the test piece in millimetres shall be d