EN IEC 61340-4-6:2025

SLOVENSKI STANDARD
01-oktober-2025
Nadomešča:
SIST EN 61340-4-6:2015
Elektrostatika - 4-6. del: Standardne preskusne metode za posebne aplikacije -
Zapestni trakovi (IEC 61340-4-6:2025)
Electrostatics - Part 4-6: Standard test methods for specific applications - Wrist straps
(IEC 61340-4-6:2025)
Elektrostatik - Teil 4-6: Standard-Prüfverfahren für spezielle Anwendungen -
Handgelenkerdungsbänder (IEC 61340-4-6:2025)
Électrostatique - Partie 4-6: Méthodes d’essai normalisées pour des applications
spécifiques - Bracelets de conduction dissipative (IEC 61340-4-6:2025)
Ta slovenski standard je istoveten z: EN IEC 61340-4-6:2025
ICS:
17.220.99 Drugi standardi v zvezi z Other standards related to
elektriko in magnetizmom electricity and magnetism
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 61340-4-6

NORME EUROPÉENNE
EUROPÄISCHE NORM August 2025
ICS 17.200.99; 29.020 Supersedes EN 61340-4-6:2015
English Version
Electrostatics - Part 4-6: Standard test methods for specific
applications - Wrist straps
(IEC 61340-4-6:2025)
Electrostatique - Partie 4-6 : Méthodes d'essai normalisées Elektrostatik - Teil 4-6: Standard-Prüfverfahren für spezielle
pour des applications spécifiques - Bracelets de conduction Anwendungen - Handgelenkerdungsbänder
dissipative (IEC 61340-4-6:2025)
(IEC 61340-4-6:2025)
This European Standard was approved by CENELEC on 2025-07-21. 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 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2025 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 61340-4-6:2025 E

European foreword
The text of document 101/732/FDIS, future edition 3 of IEC 61340-4-6, prepared by TC 101
"Electrostatics" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2026-08-31
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2028-08-31
document have to be withdrawn
This document supersedes EN 61340-4-6:2015 and all of its amendments and corrigenda (if any).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 61340-4-6:2025 was approved by CENELEC as a
European Standard without any modification.
In the official version, for Bibliography, the following note has to be added for the standard indicated:
IEC 61340-5-1 NOTE Approved as EN IEC 61340-5-1
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
NOTE 1  Where an International Publication has been modified by common modifications, indicated by (mod),
the relevant EN/HD applies.
NOTE 2  Up-to-date information on the latest versions of the European Standards listed in this annex is available
here: www.cencenelec.eu.
Publication Year Title EN/HD Year
IEC 61010-1 - Safety requirements for electrical equipment EN 61010-1 -
for measurement, control, and laboratory
use - Part 1: General requirements
IEC 61010-2-030 - Safety requirements for electrical equipment EN IEC 61010-2-030 -
for measurement, control, and laboratory
use - Part 2-030: Particular requirements for
equipment having testing or measuring
circuits
IEC 61340-4-6 ®
Edition 3.0 2025-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electrostatics –
Part 4-6: Standard test methods for specific applications – Wrist straps

Electrostatique –
Partie 4-6: Méthodes d'essai normalisées pour des applications spécifiques –
Bracelets de conduction dissipative
ICS 17.200.99, 29.020 ISBN 978-2-8327-0474-5

IEC 61340-4-6:2025-06(en-fr)
– 2 – IEC 61340-4-6:2025 © IEC 2025
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
4 Testing levels and performance limits . 9
5 Test methods . 10
5.1 Test method applications . 10
5.2 Wrist strap continuity and resistance test . 10
5.2.1 Purpose of test . 10
5.2.2 Equipment and test samples . 10
5.2.3 Procedure . 12
5.2.4 Reporting . 12
5.3 Wristband resistance test . 12
5.3.1 Purpose of test . 12
5.3.2 Equipment and test samples . 12
5.3.3 Procedure (interior resistance). 12
5.3.4 Procedure (exterior resistance) . 12
5.3.5 Reporting . 12
5.4 Wristband size requirements . 13
5.4.1 Purpose of test . 13
5.4.2 Equipment . 13
5.4.3 Self-adjusting wristbands . 13
5.4.4 "One-size-fits-all" wristbands . 13
5.5 Breakaway force . 13
5.5.1 Purpose of test . 13
5.5.2 Equipment . 13
5.5.3 Breakaway force measurement . 13
5.5.4 Reporting . 14
5.6 Connection integrity . 14
5.6.1 Purpose of test . 14
5.6.2 Equipment . 14
5.6.3 Procedure . 14
5.6.4 Reporting . 15
5.7 Ground cord extendibility . 15
5.7.1 Purpose of test . 15
5.7.2 Ground cord extendibility procedure . 15
5.7.3 Reporting . 15
5.8 Bending life test . 15
5.8.1 Purpose of test . 15
5.8.2 Equipment . 15
5.8.3 Procedure . 16
5.8.4 Reporting . 17
5.9 Manufacturer's identification . 17
5.10 Identification of current-limiting resistance . 17
5.11 Wrist strap resistance . 17

IEC 61340-4-6:2025 © IEC 2025 – 3 –
5.11.1 Purpose of test . 17
5.11.2 Equipment . 17
5.11.3 Procedure . 17
5.11.4 Reporting . 17
5.12 Wrist strap system continuity test . 17
5.12.1 Purpose of test . 17
5.12.2 Equipment . 18
5.12.3 Procedure with ohmmeter . 19
5.12.4 Procedure with integrated checker . 20
5.12.5 Reporting . 20
Bibliography . 21

Figure 1 – Wrist strap resistance test apparatus . 11
Figure 2 – Mechanical ground cord flex tester (example) . 16
Figure 3 – Wrist strap system resistance test . 19

Table 1 – Evaluation testing . 9
Table 2 – Acceptance testing . 9
Table 3 – Compliance verification testing . 9

– 4 – IEC 61340-4-6:2025 © IEC 2025
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) IEC draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). IEC takes no position concerning the evidence, validity or applicability of any claimed patent rights in
respect thereof. As of the date of publication of this document, IEC had not received notice of (a) patent(s), which
may be required to implement this document. However, implementers are cautioned that this may not represent
the latest information, which may be obtained from the patent database available at https://patents.iec.ch. IEC
shall not be held responsible for identifying any or all such patent rights.
IEC 61340-4-6 has been prepared by IEC technical committee 101: Electrostatics. It is an
International Standard.
This third edition cancels and replaces the second edition published in 2015. 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 second edition were reviewed and
incorporated where appropriate;
b) normative references have been added to address the safety of equipment.

IEC 61340-4-6:2025 © IEC 2025 – 5 –
The text of this International Standard is based on the following documents:
Draft Report on voting
101/732/FDIS 101/738/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/publications.
A list of all parts in the IEC 61340 series, published under the general title Electrostatics, can
be found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn, or
• revised.
– 6 – IEC 61340-4-6:2025 © IEC 2025
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 can damage ESD susceptible devices or
assemblies.
Test methods and performance limits for evaluation, acceptance, and functional testing are
provided.
IEC 61340-4-6:2025 © IEC 2025 – 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 the evaluation, acceptance, and compliance verification testing of wrist straps.
NOTE All dimensions are nominal except where indicated.
This document 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 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies.
For undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 61010-1, Safety requirements for electrical equipment for measurement, control, and
laboratory use – Part 1 General requirements
IEC 61010-2-030, Safety requirements for electrical equipment for measurement, control, and
laboratory use – Part 2-030 Particular requirements for equipment having testing or measuring
circuits
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following
addresses:
• IEC Electropedia: available at https://www.electropedia.org/
• ISO Online browsing platform: available at https://www.iso.org/obp
3.1
wrist strap
assembled device consisting of a wristband and ground cord that is designed to provide
electrical connection from a person's skin to ground
3.2
wrist strap system
wrist strap when properly worn by a person, where the electrical path includes the person, the
wristband and the ground cord
– 8 – IEC 61340-4-6:2025 © IEC 2025
3.3
wristband
portion of the wrist strap worn on the w
...