BS-EN-12472-2005.pdf
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1、BRITISH STANDARD BS EN 12472:2005 Method for the simulation of wear and corrosion for the detection of nickel release from coated items The European Standard EN 12472:2005 has the status of a British Standard ICS 39.060 ? BS EN 12472:2005 This British Standard was published under the authority of th
2、e Standards Policy and Strategy Committee on 25 January 2006 BSI 25 January 2006 ISBN 0 580 47730 4 National foreword This British Standard is the official English language version of EN 12472:2005. It supersedes BS EN 12472:1999 which is withdrawn. The UK participation in its preparation was entrus
3、ted to Technical Committee STI/53, Specification and test methods for jewellery/horology, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international or Europe
4、an publications referred to in this document may be found 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
5、 the necessary provisions of a contract. Users are responsible 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
6、 the interpretation, or proposals for change, and keep 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 a
7、nd a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 12472 December 2005 ICS 39.060Supersedes EN 12472:1998 English Version Meth
8、od for the simulation of wear and corrosion for the detection of nickel release from coated items Mthode de simulation de lusure et de la corrosion pour la dtermination du nickel libr par les objets revtus Simulierte Abrieb- und Korrosionsprfung zum Nachweis der Nickelabgabe von mit Auflagen versehe
9、nen Gegenstnden This European Standard was approved by CEN on 21 November 2005. 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 bi
10、bliographical references concerning such national standards may be obtained on application to the Central Secretariat 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
11、 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 the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy
12、, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussel
13、s 2005 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12472:2005: E EN 12472:2005 (E) 2 Contents page Foreword 3 Introduction4 1 Scope.5 2 Normative references .5 3 Principle.5 4 Reagents and materials5 4.1 Corrosion.5 4.2 Wear.6 5
14、 Procedure8 5.1 Sample preparation.8 5.2 Corrosion procedure 8 5.3 Wear procedure.8 5.4 Determination of nickel release .9 6 Test report.9 Annex A (informative) Detailed examples of how to attach different types of items.10 A.1 General 10 A.2 Attachment of items with only one side in contact with th
15、e skin10 A.3 Spectacle frames.10 A.4 Chains, watches, bracelets, rings etc12 Bibliography.14 EN 12472:2005 (E) 3 Foreword This European Standard (EN 12472:2005) has been prepared by Technical Committee CEN/TC 283 “Precious metals - Applications in jewellery and associated products”, the secretariat
16、of which is held by UNI. 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 2006, and conflicting national standards shall be withdrawn at the latest by June 2006. This European Standard superse
17、des EN 12472:1998. This European Standard has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this
18、European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 12472:
19、2005 (E) 4 Introduction The wear of objects in contact with the skin depends very much on the type and shape of the objects and the activities of the person concerned. This procedure attempts to simulate the wear and corrosion on a coated article during two years of normal use. By its nature this is
20、 a pragmatic solution to the problems posed by the evaluation of coated items in contact with the skin, which may be subject to several kinds and varying degrees of wear. In order to show compliance with Directive 94/27/EC, items should be tested in accordance with the appropriate European harmonise
21、d standard(s), the references of which have been published by the European Commission in the Official Journal of the European Communities. Currently, these are EN 1810, EN 1811 and this European Standard. EN 12472:2005 (E) 5 1 Scope This European Standard specifies a method for accelerated wear and
22、corrosion, to be used prior to the detection of nickel release from coated items that come into direct and prolonged contact with the skin. 2 Normative references The following referenced documents are indispensable for the application of this European Standard. For dated references, only the editio
23、n cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 1811, Reference test method for release of nickel from products intended to come into direct and prolonged contact with the skin 3 Principle The items to be tested are expose
24、d to a corrosive atmosphere before being placed into a tumbling barrel together with a wear medium of abrasive paste and granules. The barrel is rotated so as to subject the test pieces to wear from the wear medium. The items are then tested for nickel release in accordance with EN 1811. 4 Reagents
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