1、BSI Standards PublicationDetermination of certain substances in electrotechnicalproductsPart 7-1: Determination of the presence of hexavalent chromium (Cr(VI) in colorless and colored corrosion-protected coatings on metals by the colorimetric methodBS EN 62321-7-1:2015National forewordThis British S
2、tandard is the UK implementation of EN 62321-7-1:2015. Together with BS EN 62321-1:2013, BS EN 62321-2:2014, BS EN 62321-3-1:2014, BS EN 62321-3-2:2014, BS EN 62321-4:2014, BS EN 62321-5:2014, BS EN 62321-6:2015, BS EN 62321-7-2 and BS EN 62321-8 it supersedes BS EN 62321:2009, which will be withdra
3、wn upon publication of all parts of the BS EN 62321 series.The UK participation in its preparation was entrusted to TechnicalCommittee GEL/111, Electrotechnical environment committee.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication doe
4、s not purport to include all the necessary provisions ofa contract. Users are responsible for its correct application. The British Standards Institution 2016.Published by BSI Standards Limited 2016ISBN 978 0 580 74417 4ICS 13.020.01; 43.040.10Compliance with a British Standard cannot confer immunity
5、 fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 January 2016.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 62321-7-1:2015EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 623
6、21-7-1 December 2015 ICS 13.020; 43.040.10 English Version Determination of certain substances in electrotechnical products - Part 7-1: Determination of the presence of hexavalent chromium (Cr(VI) in colorless and colored corrosion-protected coatings on metals by the colorimetric method (IEC 62321-7
7、-1:2015) Dtermination de certaines substances dans les produits lectrotechniques - Partie 7-1: Chrome hexavalent - Prsence de chrome hexavalent (Cr(VI) dans les revtements incolores et colors de protection anticorrosion appliqus sur les mtaux laide de la mthode colorimtrique (IEC 62321-7-1:2015) Ver
8、fahren zur Bestimmung von bestimmten Substanzen in Produkten der Elektrotechnik - Teil 7-1: Bestimmung des Vorliegens von sechswertigem Chrom (Cr(VI) in farblosen und farbigen Korrosionsschutzberzgen auf Metallen durch das kolorimetrische Verfahren (IEC 62321-7-1:2015) This European Standard was app
9、roved by CENELEC on 2015-10-21. CENELEC 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 nat
10、ional standards may be obtained on application to the CEN-CENELEC Management Centre or to any CENELEC 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 CENELEC member into its
11、own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedon
12、ia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. European Committee for Electrotechnical Standardization Comit Europe
13、n de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN 62321-7-1:2015 E BS EN 62321-
14、7-1:2015EN 62321-7-1:2015 2 European foreword The text of document 111/380/FDIS, future edition 1 of IEC 62321-7-1, prepared by IEC/TC 111 “Environmental standardization for electrical and electronic products and systems“ was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 6
15、2321-7-1:2015. The following dates are fixed: latest date by which the document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2016-07-21 latest date by which the national standards conflicting with the document have to be withdrawn (
16、dow) 2018-10-21 Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. Endorsement notice The text of the International Standard IEC 62321-7-
17、1.2015 was approved by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the following notes have to be added for the standards indicated: ISO 3613 NOTE Harmonized as EN ISO 3613. ISO 648 NOTE Harmonized as EN ISO 648. DIN EN 15205:2007 NOTE Harmoniz
18、ed as EN 15205:2006 BS EN 62321-7-1:2015EN 62321-7-1:2015 3 Annex ZA (normative) Normative references to international publications with their corresponding European publications The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its a
19、pplication. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. NOTE 1 When an International Publication has been modified by common modifications, indicated by (mod), the relevant EN/HD appli
20、es. NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here: www.cenelec.eu. Publication Year Title EN/HD Year IEC 62321-1 - Determination of certain substances in electrotechnical products - Part 1: Introduction and overview EN 62321-1 -
21、 IEC 62321-2 - Determination of certain substances in electrotechnical products - Part 2: Disassembly, disjunction and mechanical sample preparation EN 62321-2 - ISO 78-2 - Chemistry_- Layouts for standards_- Part_2: Methods of chemical analysis - - ISO 3696 - Water for analytical laboratory use - S
22、pecification and test methods EN ISO 3696 - BS EN 62321-7-1:2015 2 IEC 62321-7-1:2015 IEC 2015 CONTENTS FOREWORD . 3 INTRODUCTION . 5 1 Scope 6 2 Normative references 6 3 Terms, definitions and abbreviations . 7 3.1 Terms and definitions 7 3.2 Abbreviations 7 4 Reagents . 7 4.1 General . 7 4.2 Reage
23、nts 7 5 Apparatus 7 5.1 General . 7 5.2 Apparatus . 7 6 Sampling . 8 7 Boiling water extraction procedure . 8 8 Calibration . 11 8.1 Permanent calibration instruments 11 8.2 Traditional calibration instruments 11 9 Calculation 11 10 Precision . 12 11 Quality assurance and control . 12 11.1 Colorimet
24、ric instrument performance verification . 12 11.2 Limits of detection (LOD) and limits of quantification (LOQ) 12 12 Test report . 13 Annex A (informative) International inter-laboratory study on corrosion-protected coatings Data overview 16 Bibliography 18 Figure 1 Screw body and screw head measure
25、ments . 9 Figure A.1 Concentration of chromium VI based on surface area for all samples . 16 Figure A.2 Concentration of chromium VI based on surface area Expanded view between 0 g/cm2 to 1 g/cm2. 17 Table 1 Comparison to standard solution and interpretation of results 11 Table 2 Students t values u
26、sed for calculation of method detection limit (LOD or MDL = t-statistic standard deviation (sn-1) 13 Table 3 Reporting table 14 Table 4 Example of a completed reporting table . 15 BS EN 62321-7-1:2015IEC 62321-7-1:2015 IEC 2015 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ DETERMINATION OF CERTAIN S
27、UBSTANCES IN ELECTROTECHNICAL PRODUCTS Part 7-1: Hexavalent chromium Presence of hexavalent chromium (Cr(VI) in colourless and coloured corrosion-protected coatings on metals by the colorimetric method FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for st
28、andardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes
29、International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may partic
30、ipate in this preparatory work. International, governmental and non-governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement betw
31、een the two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees. 3) IEC Publicatio
32、ns have the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for an
33、y misinterpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding
34、 national or regional publication shall be clearly indicated in the latter. 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any serv
35、ices carried out by independent certification bodies. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC Nat
36、ional Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention
37、is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC sha
38、ll not be held responsible for identifying any or all such patent rights. International Standard IEC 62321-7-1 has been prepared by IEC technical committee 111: Environmental standardization for electrical and electronic products and systems. The first edition of IEC 62321:2008 was a stand-alone sta
39、ndard that included an introduction, an overview of test methods, a mechanical sample preparation as well as various test method clauses. This first edition of IEC 62321-7-1 is a partial replacement of IEC 62321:2008, forming a structural revision and generally replacing informative Annex B. Future
40、parts in the IEC 62321 series will gradually replace the corresponding clauses in IEC 62321:2008. Until such time as all parts are published, however, IEC 62321:2008 remains valid for those clauses not yet re-published as a separate part. BS EN 62321-7-1:2015 4 IEC 62321-7-1:2015 IEC 2015 The text o
41、f this standard is based on the following documents: FDIS Report on voting 111/380/FDIS 111/393/RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. This publication has been drafted in accordance with the ISO/IEC Dir
42、ectives, Part 2. A list of all parts in the IEC 62321 series can be found on the IEC website under the general title: Determination of certain substances in electrotechnical products. The committee has decided that the contents of this publication will remain unchanged until the stability date indic
43、ated on the IEC website under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. IMPORTANT The colour inside logo on the cover page of this publication indicates that it con
44、tains colours which are considered to be useful for the correct understanding of its contents. Users should therefore print this document using a colour printer. BS EN 62321-7-1:2015IEC 62321-7-1:2015 IEC 2015 5 INTRODUCTION The widespread use of electrotechnical products has drawn increased attenti
45、on to their impact on the environment. In many countries this has resulted in the adaptation of regulations affecting wastes, substances and energy use of electrotechnical products. The use of certain substances (e.g. lead (Pb), cadmium (Cd) and polybrominated diphenylethers (PBDEs) in electrotechni
46、cal products is a source of concern in current and proposed regional legislation. The purpose of the IEC 62321 series is therefore to provide test methods that will allow the electrotechnical industry to determine the levels of certain substances of concern in electrotechnical products on a consiste
47、nt global basis. WARNING Persons using this International Standard should be familiar with normal laboratory practice. This standard 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 healt
48、h practices and to ensure compliance with any national regulatory conditions. BS EN 62321-7-1:2015 6 IEC 62321-7-1:2015 IEC 2015 DETERMINATION OF CERTAIN SUBSTANCES IN ELECTROTECHNICAL PRODUCTS Part 7-1: Hexavalent chromium Presence of hexavalent chromium (Cr(VI) in colourless and coloured corrosion
49、-protected coatings on metals by the colorimetric method 1 Scope This part of IEC 62321 describes a boiling water extraction procedure intended to provide a qualitative determination of the presence of hexavalent chromium (Cr(VI) in colourless and coloured corrosion-protection coatings on metallic samples. Due to its highly reactive nature, the concentration of Cr(VI) in a corrosion-protection coating can change drastically with time and storage conditions. S
