IEC 62321-4-2013 Determination of certain substances in electrotechnical products - Part 4 Determination of mercury in polymers metals and electronics by CV-AAS.pdf

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1、 IEC 62321-4 Edition 1.0 2013-06 INTERNATIONAL STANDARD NORME INTERNATIONALE Determination of certain substances in electrotechnical products Part 4: Mercury in polymers, metals and electronics by CV-AAS, CV-AFS, ICP-OES and ICP-MS Dtermination de certaines substances dans les produits lectrotechniq

2、ues Partie 4: Mercure dans les polymres, mtaux et produits lectroniques par CV-AAS, CV-AFS, ICP-OES et ICP-MS IEC62321-4:2013 THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2013 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced

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16、 publication ou si vous avez des questions contactez-nous: csciec.ch. IEC 62321-4 Edition 1.0 2013-06 INTERNATIONAL STANDARD NORME INTERNATIONALE Determination of certain substances in electrotechnical products Part 4: Mercury in polymers, metals and electronics by CV-AAS, CV-AFS, ICP-OES and ICP-MS

17、 Dtermination de certaines substances dans les produits lectrotechniques Partie 4: Mercure dans les polymres, mtaux et produits lectroniques par CV-AAS, CV-AFS, ICP-OES et ICP-MS INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE U ICS 13.020; 43.040.10 PRICE CODE C

18、ODE PRIX ISBN 978-2-83220-841-0 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale Warning! Make sure that you obtained this publication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obt

19、enu cette publication via un distributeur agr. 2 62321-4 IEC:2013 CONTENTS FOREWORD . 4 INTRODUCTION . 6 1 Scope . 7 2 Normative references . 7 3 Terms, definitions and abbreviations 8 Terms and definitions 8 3.1Abbreviations 9 3.24 Reagent and materials 9 General . 9 4.1Reagents . 9 4.2Materials .

20、11 4.35 Apparatus . 11 General . 11 5.1Apparatus 11 5.26 Sampling and test portion . 12 7 Procedure. 12 Wet digestion (digestion of electronics) . 12 7.1Microwave digestion 13 7.2Thermal decomposition-gold amalgamation system . 13 7.3Preparation of reagent blank solution 14 7.48 Calibration 14 Gener

21、al . 14 8.1Development of the calibration curve . 14 8.2Measurement of the sample 15 8.39 Calculation . 15 10 Precision 16 11 Quality assurance and control 16 General . 16 11.1Limits of detection (LOD) and limits of quantification (LOQ) . 17 11.2(informative) Practical application of determination o

22、f mercury in polymers, Annex Ametals and electronics by CV-AAS, AFS, ICP-OES and ICP-MS . 19 (informative) Results of international interlaboratory study Nos. 2 (IIS2) and Annex B4A (IIS 4A) 24 Bibliography 25 Figure A.1 Heating digester equipped with reaction vessel, reflux cooler and absorption ve

23、ssel 19 Figure A.2 Configuration of equipment with AAS (example) . 20 Figure A.3 Mercury collecting tube (example) 21 Figure A.4 Configuration (example) of the thermal decomposition/atomic absorption spectrometer for CCFL 22 Table 1 Repeatability and reproducibility 16 Table 2 Acceptance criteria of

24、 items for the quality control . 17 62321-4 IEC:2013 3 Table 3 Method detection limit = t sn1. 18 Table A.1 Program for microwave digestion (example) of samples (power output for five vessels) 20 Table B.1 Statistical data for TD(G)-AAS . 24 Table B.2 Statistical data for CV-AAS 24 Table B.3 Statist

25、ical data for CV-AFS 24 Table B.4 Statistical data for ICP-OES . 24 4 62321-4 IEC:2013 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ DETERMINATION OF CERTAIN SUBSTANCES IN ELECTROTECHNICAL PRODUCTS Part 4: Mercury in polymers, metals and electronics by CV-AAS, CV-AFS, ICP-OES and ICP-MS FOREWORD 1) Th

26、e International Electrotechnical Commission (IEC) is a worldwide organization for standardization 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 an

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33、n some areas, access to IEC marks of conformity. IEC is not responsible for any services 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 age

34、nts including individual experts and members of its technical committees and IEC National 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,

35、 or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention 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

36、of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 62321-4 has been prepared by IEC technical committee 111: Environmental standardization for electrical and electron

37、ic products and systems. The first edition of IEC 62321:2008 was a stand alone standard 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 62321-4 is a partial replacement of IEC 62321, forming

38、 a structural revision and replacing Clause 7 and Annex E. Future 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 p

39、art. 62321-4 IEC:2013 5 The text of this standard is based on the following documents: FDIS Report on voting 111/299/FDIS 111/309/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

40、in accordance with the ISO/IEC Directives, 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 unchang

41、ed until the stability date indicated on the IEC web site 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. 6 62321-4 IEC:2013 INTRODUCTION The widespread use of elec

42、trotechnical products has drawn increased attention 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 polyb

43、rominated diphenyl ethers (PBDEs) in electrotechnical 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

44、 concern in electrotechnical products on a consistent 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

45、 the user to establish appropriate safety and health practices and to ensure compliance with any national regulatory conditions. 62321-4 IEC:2013 7 DETERMINATION OF CERTAIN SUBSTANCES IN ELECTROTECHNICAL PRODUCTS Part 4: Mercury in polymers, metals and electronics by CV-AAS, CV-AFS, ICP-OES and ICP-

46、MS 1 Scope This part of IEC 62321 describes test methods for mercury in polymers, metals and electronics by CV-AAS, CV-AFS, ICP-OES and ICP-MS. This standard specifies the determination of the levels of mercury (Hg) contained in electrotechnical products. These materials are polymers, metals and ele

47、ctronics (e.g. printed wiring boards, cold cathode fluorescent lamps, mercury switches). Batteries containing Hg should be handled as described in 11. The interlaboratory study has only evaluated these test methods for plastics, other matrices were not covered. This standard refers to the sample as

48、the object to be processed and measured. What the sample is or how to get to the sample is defined by the entity carrying out the tests. Further guidance on obtaining representative samples from finished electronic products to be tested for levels of regulated substances may be found in IEC 62321-2.

49、 It is noted that the selection and/or determination of the sample may affect the interpretation of the test results. This standard describes the use of four methods, namely CV-AAS (cold vapour atomic absorption spectrometry), CV-AFS (cold vapour atomic fluorescence spectrometry) ICP-OES (inductively coupled plasma optical emission spectrometry), and ICP-MS (inductively coupled plasma mass spectrometry) as wel