Electrostatics - Part 4-6: Standard test methods for specific applications - Wrist straps

This part of IEC 61340 provides electrical and mechanical test methods and performance
limits for evaluation, acceptance and periodic verification testing of wrist straps.
NOTE All dimensions are nominal except where indicated.
This standard is intended for testing wrist straps and wrist strap systems used for the
grounding of personnel engaged in working with ESD sensitive assemblies and devices.
It does not address constant monitoring systems.

Elektrostatik - Teil 4-6: Standard-Prüfverfahren für spezielle Anwendungen - Handgelenkerdungsbänder

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L'IEC 61340-4-6:2015 donne les méthodes d'essai électriques et mécaniques et les limites de performance pour les essais d'évaluation, d'acceptation et de vérification périodique des bracelets de conduction dissipative. Cette norme couvre les essais des bracelets de conduction dissipative et des systèmes de bracelets de conduction dissipative pour la mise à la terre du personnel amené à travailler avec des assemblages et dispositifs sensibles aux ESD. Elle ne couvre pas les systèmes de surveillance continue. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
a) les commentaires éditoriaux émis au cours de la révision de la première édition ont été revus et intégrés le cas échéant;
b) plusieurs modifications ont été apportées pour la mise à jour des Figures et l'amélioration de la présentation des mesures métriques (les mesures britanniques ont été supprimées);
c) l'option consistant à utiliser un dispositif de contrôle intégré pour l'essai de continuité du système de bracelet de conduction dissipative a été ajoutée;
d) l'évaluation et la limite d'acceptation concernant la résistance du bracelet de conduction dissipative ont été modifiées pour harmonisation avec l'IEC 61340-5-1.

Elektrostatika - 4-6. del: Standardne preskusne metode za posebne aplikacije - Zapestni trakovi

Ta del standarda IEC 61340 podaja električne in mehanske preskusne metode in omejitve delovanja za ocenjevanje, sprejemljivost in redno preverjanje zapestnih trakov.
OPOMBA Vse dimenzije so nazivne, razen ko je to drugače označeno.
Ta standard je namenjen preskušanju zapestnih trakov in sistemov zapestnih trakov za ozemljitev osebja, ki dela s sestavami in napravami, ki so občutljive za elektrostatične razelektritve. Ne nanaša se na sisteme za neprekinjen nadzor.

General Information

Status
Published
Publication Date
09-Nov-2015
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
29-Sep-2015
Due Date
04-Dec-2015
Completion Date
10-Nov-2015

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Elektrostatika - 4-6. del: Standardne preskusne metode za posebne aplikacije - Zapestni trakovi/Electrostatics - Part 4-6: Standard test methods for specific applications - Wrist straps17.220.99Drugi standardi v zvezi z elektriko in magnetizmomOther standards related to electricity and magnetismICS:Ta slovenski standard je istoveten z:EN 61340-4-6:2015SIST EN 61340-4-6:2015en01-december-2015SIST EN 61340-4-6:2015SLOVENSKI
STANDARD



SIST EN 61340-4-6:2015



EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 61340-4-6
September 2015 ICS 17.220.99; 29.020
English Version
Electrostatics - Part 4-6: Standard test methods for specific applications - Wrist straps (IEC 61340-4-6:2015)
Électrostatique - Partie 4-6: Méthodes d'essai normalisées pour des applications spécifiques - Bracelets de conduction dissipative (IEC 61340-4-6:2015)
Elektrostatik - Teil 4-6: Standard-Prüfverfahren für spezielle Anwendungen - Handgelenkerdungsbänder (IEC 61340-4-6:2015) This European Standard was approved by CENELEC on 2015-06-24. 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 national 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 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 Macedonia, 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
Comité Européen de Normalisation Electrotechnique Europäisches Komitee für 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 61340-4-6:2015 E SIST EN 61340-4-6:2015



EN 61340-4-6:2015 2 European foreword The text of document 101/463/FDIS, future edition 2 of IEC 61340-4-6, prepared by IEC/TC 101 "Electrostatics" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 61340-4-6:2015. 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) 2016-03-24 • latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2018-06-24
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 61340-4-6:2015 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: IEC 61340-5-1 NOTE Harmonized as EN 61340-5-1. IEC/TR 61340-5-2 NOTE Harmonized as CLC/TR 61340-5-2.
SIST EN 61340-4-6:2015



SIST EN 61340-4-6:2015



IEC 61340-4-6 Edition 2.0 2015-05 INTERNATIONAL STANDARD NORME INTERNATIONALE Electrostatics –
Part 4-6: Standard test methods for specific applications – Wrist straps
Électrostatique –
Partie 4-6: Méthodes d’essai normalisées pour des applications spécifiques –
Bracelets de conduction dissipative
INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE
ICS 17.220.99; 29.020
ISBN 978-2-8322-2675-9
® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale ®
Warning! Make sure that you obtained this publication from an authorized distributor.
Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé. SIST EN 61340-4-6:2015



– 2 – IEC 61340-4-6:2015  IEC 2015
CONTENTS FOREWORD . 4 INTRODUCTION . 6 1 Scope . 7 2 Terms and definitions . 7 3 Testing levels and performance limits . 8 4 Test methods . 9 4.1 Test method applications . 9 4.2 Wrist strap continuity and resistance test . 10 4.2.1 Purpose of test . 10 4.2.2 Equipment . 10 4.2.3 Procedure . 11 4.2.4 Reporting . 11 4.3 Band resistance test . 11 4.3.1 Purpose of test . 11 4.3.2 Equipment . 11 4.3.3 Procedure (interior resistance) . 12 4.3.4 Procedure (exterior resistance) . 12 4.3.5 Reporting . 12 4.4 Band size requirements . 12 4.4.1 Purpose of test . 12 4.4.2 Equipment . 12 4.4.3 Self-adjusting bands . 12 4.4.4 “One-size-fits-all” bands . 13 4.5 Breakaway force . 13 4.5.1 Purpose of test . 13 4.5.2 Breakaway force measurement . 13 4.6 Connection integrity . 13 4.6.1 Purpose of test . 13 4.6.2 Equipment . 13 4.6.3 Procedure . 13 4.6.4 Reporting . 14 4.7 Ground cord extendibility . 14 4.7.1 Purpose of test . 14 4.7.2 Ground cord extendibility procedure . 14 4.8 Bending life test . 14 4.8.1 Purpose of test . 14 4.8.2 Equipment . 14 4.8.3 Procedure . 15 4.8.4 Reporting . 16 4.9 Manufacturer’s identification . 16 4.10 Identification of non-standard resistance value . 16 4.11 Wrist strap resistance . 16 4.11.1 Purpose of test . 16 4.11.2 Equipment . 16 4.11.3 Procedure . 16 SIST EN 61340-4-6:2015



IEC 61340-4-6:2015  IEC 2015 – 3 –
4.11.4 Reporting . 16 4.12 Wrist strap system continuity test . 16 4.12.1 Purpose of test . 16 4.12.2 Equipment . 17 4.12.3 Procedure with ohmmeter . 18 4.12.4 Procedure with integrated checker . 18 4.12.5 Reporting . 18 Bibliography . 19
Figure 1 – Wrist strap resistance test apparatus . 11 Figure 2 – Mechanical ground cord flex tester (example) . 15 Figure 3 – Wrist strap system resistance test . 18
Table 1 – Evaluation testing . 9 Table 2 – Acceptance testing . 9 Table 3 – Periodic or verification testing . 9
SIST EN 61340-4-6:2015



– 4 – IEC 61340-4-6:2015  IEC 2015
INTERNATIONAL ELECTROTECHNICAL COMMISSION ____________
ELECTROSTATICS –
Part 4-6: Standard test methods for specific
applications – Wrist straps
FOREWORD 1) The 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 and electronic fields. To this end and in addition to other activities, IEC publishes 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 participate 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 between 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 Publications 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 any 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 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 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 agents 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, 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 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 61340-4-6 has been prepared by IEC technical committee 101: Electrostatics. This second edition cancels and replaces the first edition published in 2010. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition: a) editorial comments made during the review of the first edition were reviewed and incorporated where appropriate; b) several changes were made to update the Figures and improve the presentation of
metric measurements (Imperial measurements have been removed); SIST EN 61340-4-6:2015



IEC 61340-4-6:2015  IEC 2015 – 5 –
c) the option of using an integrated checker for wrist strap system continuity testing has been added; d) the evaluation and acceptance limit for wrist strap resistance has been changed so as to harmonize with IEC 61340-5-1. The text of this standard is based on the following documents: FDIS Report on voting 101/463/FDIS 101/476/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 Directives, Part 2. A list of all parts in the IEC 61340 series, under the general title Electrostatics, can be found on the IEC website. The committee has decided that the contents of this publication will remain unchanged until the stability date indicated 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.
SIST EN 61340-4-6:2015



– 6 – IEC 61340-4-6:2015  IEC 2015
INTRODUCTION This part of IEC 61340 has been developed to establish test methods for evaluating the electrical and mechanical attributes of wrist straps used in an electrostatic control program. Wrist straps are intended to connect the user to electrical ground, thus preventing electrostatic charge on a user’s body from attaining a level that may damage ESD susceptible devices or assemblies. Test methods and performance limits for evaluation, acceptance, and functional testing are provided.
SIST EN 61340-4-6:2015



IEC 61340-4-6:2015  IEC 2015 – 7 –
ELECTROSTATICS –
Part 4-6: Standard test methods for specific
applications – Wrist straps
1 Scope This part of IEC 61340 provides electrical and mechanical test methods and performance limits for evaluation, acceptance and periodic verification testing of wrist straps. NOTE All dimensions are nominal except where indicated. This standard is intended for testing wrist straps and wrist strap systems used for the grounding of personnel engaged in working with ESD sensitive assemblies and devices. It does not address constant monitoring systems. 2 Terms and definitions For the purposes of this document, the following terms and definitions apply. 2.1
wrist strap assembled device consisting of a band and ground cord that is designed to provide electrical connection from a person’s skin to ground 2.2
wrist strap system wrist strap when properly worn by a person, where the electrical path includes the person, the band and the ground cord 2.3
band portion of the wrist strap worn on the wrist Note 1 to entry: The band maintains electrical contact with a person’s skin. 2.4
ground cord portion of the wrist strap that provides flexibility of movement while completing the electrical circuit between the band and ground 2.5
evaluation testing testing of a wrist strap to determine its electrical and mechanical performance abilities Note 1 to entry: Data are in the form of values from laboratory testing. 2.6
acceptance testing incoming tests to confirm proper marking and electrical functionality Note 1 to entry: Data are in the form of visual inspection records and values or pass/fail notation. SIST EN 61340-4-6:2015



– 8 – IEC 61340-4-6:2015  IEC 2015
2.7
periodic verification testing end-use testing to confirm electrical functionality Note 1 to entry: Data are in the form of pass/fail notation or resistance values. 2.8
current-limiting resistance resistance value incorporated in series with the wrist strap’s
...

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