EN ISO 9202-2016 en Jewellery - Fineness of precious metal alloys《首饰贵金属合金的纯度(ISO 9202 2014)》.pdf

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1、BS EN ISO 9202:2016Jewellery Fineness ofprecious metal alloys(ISO 9202:2014)BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS EN ISO 9202:2016 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN ISO 9202:2016.It is identical to ISO

2、9202:2014. It supersedes BS EN 29202:1993 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee STI/53, Specifications and test methods for jewellery andhorology.A list of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. The British Standards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580 74808 0ICS 39.060Compliance with a British Standard cannot confer imm

4、unity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 October 2016.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 9202 October 2016 IC

5、S 39.060 Supersedes EN 29202:1992English Version Jewellery - Fineness of precious metal alloys (ISO 9202:2014) Joaillerie, bijouterie - Titre des alliages de mtaux prcieux (ISO 9202:2014) Schmuck - Feingehalt von Edelmetalllegierungen (ISO 9202:2014) This European Standard was approved by CEN on 26

6、August 2016. 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 be

7、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 to th

8、e 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ire

9、land, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Ce

10、ntre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 9202:2016 EBS EN ISO 9202:2016EN ISO 9202:2016 (E) 3 European foreword The text of ISO 9202:2014 has been prepared by Technical Commit

11、tee ISO/TC 174 “Jewellery” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 9202:2016. 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 April 2017, and

12、conflicting national standards shall be withdrawn at the latest by April 2017. 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 do

13、cument supersedes EN 29202:1992. 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 R

14、epublic 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 the United Kingdom. Endorsement notice The text of ISO 9202:2014 has been

15、approved by CEN as EN ISO 9202:2016 without any modification. BS EN ISO 9202:2016ISO 9202:2014(E)Contents PageForeword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions . 14 Analytical methods for determining fineness 15 Range of fineness . 2 ISO 2014 All rights reserved iii

16、BS EN ISO 9202:2016ISO 9202:2014(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body int

17、erested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnic

18、al Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO docu

19、ments should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives). Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsi

20、ble for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents). Any trade name used in this document is information given fo

21、r the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL

22、: Foreword - Supplementary informationThe committee responsible for this document is ISO/TC 174, Jewellery.This second edition cancels and replaces the first edition (ISO 9202:1991), which has been technically revised.The major technical changes are the following:a) inclusion of a recommended method

23、 in Table 1;b) deletion of carat in Table 1;c) addition of finesses in Table 1;d) International Standard was editorially revised.iv ISO 2014 All rights reservedBS EN ISO 9202:2016ISO 9202:2014(E)IntroductionThe following definitions apply in understanding how to implement an ISO International Standa

24、rd and other normative ISO deliverables (TS, PAS, IWA). “shall” indicates a requirement; “should” indicates a recommendation; “may” is used to indicate that something is permitted; “can” is used to indicate that something is possible, for example, that an organization or individual is able to do som

25、ething.ISO/IEC Directives, Part 2 (sixth edition, 2011), 3.3.1 defines a requirement as an “expression in the content of a document conveying criteria to be fulfilled if compliance with the document is to be claimed and from which no deviation is permitted.”ISO/IEC Directives, Part 2 (sixth edition,

26、 2011), 3.3.2 defines a recommendation as an “expression in the content of a document conveying that among several possibilities one is recommended as particularly suitable, without mentioning or excluding others, or that a certain course of action is preferred but not necessarily required, or that

27、(in the negative form) a certain possibility or course of action is deprecated but not prohibited.” ISO 2014 All rights reserved vBS EN ISO 9202:2016BS EN ISO 9202:2016Jewellery Fineness of precious metal alloys1 ScopeThis International Standard specifies a range of fineness of precious metal alloys

28、 (excluding solders) recommended for use in the field of jewellery.National legal requirements for the designation, marking, and stamping of finished articles in the respective countries have to be taken into account.2 Normative referencesThe following documents, in whole or in part, are normatively

29、 referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 11210, Jewellery Determination of platinum in platinum jewellery

30、alloys Gravimetric method after precipitation of diammonium hexachloroplatinateISO 11426, Jewellery Determination of gold in gold jewellery alloys Cupellation method (fire assay)ISO 11427, Jewellery Determination of silver in silver jewellery alloys Volumetric (potentiometric) method using potassium

31、 bromideISO 11490, Jewellery Determination of palladium in palladium jewellery alloys Gravimetric determination with dimethylglyoximeISO 11494, Jewellery Determination of platinum in platinum jewellery alloys ICP OES method using yttrium as internal standard elementISO 11495, Jewellery Determination

32、 of palladium in palladium jewellery alloys ICP OES method using yttrium as internal standard elementISO 13756, Determination of silver in silver jewellery alloys Volumetric (potentiometric) method using sodium chloride or potassium chlorideISO 15093, Jewellery Determination of precious metals in 99

33、9 gold, platinum and palladium jewellery alloys Difference method using ICP-OESISO 15096, Jewellery Determination of silver in 999 silver jewellery alloys Difference method using ICP-OES3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.3.1finenessmin

34、imum content of the named precious metal, measured in terms of parts per thousand () by weight of alloy4 Analytical methods for determining finenessFor determining the fineness of precious metal alloys, one of the following test methods shall be used: ISO 11210, ISO 11426, ISO 11427, ISO 11490, ISO

35、11494, ISO 11495, ISO 13756, ISO 15093, or ISO 15096.INTERNATIONAL STANDARD ISO 9202:2014(E) ISO 2014 All rights reserved 1BS EN ISO 9202:2016ISO 9202:2014(E)The recommended methods are listed in Table 1.5 Range of finenessTable 1 Fineness of precious metal alloysPrecious metalFinenessamin.Recommend

36、ed methodGold333b375417585750916990ISO 11426999 ISO 11426 or ISO 15093Platinum500600850900950990ISO 11210ISO 11494999 ISO 15093Palladium500950990ISO 11490ISO 11495999 ISO 15093Silver800925958990ISO 11427ISO 13756999 ISO 15096aThe fineness is stated as minimum value. No minus tolerance is allowed.bVa

37、lues are given in parts per thousand ().2 ISO 2014 All rights reservedBS EN ISO 9202:2016This page deliberately left blankThis page deliberately left blankBSI is the national body responsible for preparing British Standards and other standards-related publications, information and services.BSI is in

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