EN IEC 61340-4-9:2024

SLOVENSKI STANDARD
01-januar-2025
Elektrostatika - 4-9. del: Standardne preskusne metode za posebno uporabo -
Oblačila - Uporovne značilnosti (IEC 61340-4-9:2024)
Electrostatics - Part 4-9: Standard test methods for specific applications - Garments -
Resistive Characterization (IEC 61340-4-9:2024)
Elektrostatik – Teil 4-9: Standard-Prüfverfahren für spezielle Anwendungen – Kleidung –
Resistive Charakterisierung (IEC 61340-4-9:2024)
Électrostatique - Partie 4-9: Méthodes d'essai normalisées pour des applications
spécifiques - Vêtements - Caractéristiques résistives (IEC 61340-4-9:2024)
Ta slovenski standard je istoveten z: EN IEC 61340-4-9:2024
ICS:
13.340.10 Varovalna obleka Protective clothing
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 61340-4-9

NORME EUROPÉENNE
EUROPÄISCHE NORM November 2024
ICS 17.200.99; 29.020 Supersedes EN 61340-4-9:2016
English Version
Electrostatics - Part 4-9: Standard test methods for specific
applications - Garments - Resistive characterization
(IEC 61340-4-9:2024)
Électrostatique - Partie 4-9: Méthodes d'essai normalisées Elektrostatik - Teil 4-9: Standard-Prüfverfahren für spezielle
pour des applications spécifiques - Vêtements - Anwendungen - Kleidung - Resistive Charakterisierung
Caractéristiques résistives (IEC 61340-4-9:2024)
(IEC 61340-4-9:2024)
This European Standard was approved by CENELEC on 2024-11-27. 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
© 2024 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 61340-4-9:2024 E

European foreword
The text of document 101/718/FDIS, future edition 3 of IEC 61340-4-9, 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) 2025-11-30
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2027-11-30
document have to be withdrawn
This document supersedes EN 61340-4-9:2016 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 61340-4-9:2024 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 EN 61010-1 -
equipment for measurement, control, and
laboratory use - Part 1: General
requirements
IEC 61010-2-030 - Safety requirements for electrical EN IEC 61010-2-030 -
equipment for measurement, control, and
laboratory use - Part 2-030: Particular
requirements for equipment having testing
or measuring circuits
IEC 61340-2-3 - Electrostatics - Part 2-3: Methods of test EN 61340-2-3 -
for determining the resistance and
resistivity of solid materials used to avoid
electrostatic charge accumulation
IEC 61340-4-6 - Electrostatics - Part 4-6: Standard test EN 61340-4-6 -
methods for specific applications - Wrist
straps
IEC 61340-4-9 ®
Edition 3.0 2024-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electrostatics –
Part 4-9: Standard test methods for specific applications – Garments – Resistive

characterization
Électrostatique –
Partie 4-9: Méthodes d'essai normalisées pour des applications spécifiques –

Vêtements – Caractéristiques résistives

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 17.200.99, 29.020 ISBN 978-2-8322-9801-5

– 2 – IEC 61340-4-9:2024 © IEC 2024
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 8
4 Atmosphere for conditioning and testing . 8
5 Equipment and materials . 9
5.1 Resistance measurement apparatus . 9
5.1.1 General . 9
5.1.2 Product qualification . 9
5.1.3 Acceptance testing . 9
5.1.4 Ohmmeter for testing personnel ground path . 9
5.2 Resistance measurement electrodes . 9
5.2.1 Cylindrical electrodes . 9
5.2.2 Clamps or electrodes . 10
5.2.3 Cuff test fixture . 10
5.2.4 Hand-held electrode . 10
5.3 Support surface . 10
5.3.1 Insulative support surface . 10
5.3.2 Insulative sleeve inserts . 10
5.3.3 Insulative hangers . 10
6 Test procedure . 10
6.1 Sample preparation . 10
6.1.1 General . 10
6.1.2 Number of samples . 11
6.2 Humidity requirements . 11
6.3 Test procedures . 11
6.3.1 General . 11
6.3.2 Resistance point-to-point . 11
6.3.3 Resistance point-to-groundable point . 12
6.3.4 Cuff measurements . 12
6.3.5 Groundable static control garment system . 12
7 Product qualification . 13
8 Reporting. 13
Annex A (informative) Garment types and resistance values . 20
Annex B (informative) Data collection sheet (example) . 21
Bibliography . 23

Figure 1 – Test set-up – Resistance point-to-point (sleeve-to-sleeve procedure with
insulative sleeve inserts) . 14
Figure 2 – Test set-up – Resistance point-to-point (insulative sleeve insert inserted
into sleeve detail) . 14
Figure 3 – Test set-up – Resistance point-to-point (panel-to-panel procedure with
insulative support surface) . 14
Figure 4 – Test set-up – Resistance point-to-point (cuff-to-cuff procedure) . 15

IEC 61340-4-9:2024 © IEC 2024 – 3 –
Figure 5 – Test set-up – Resistance point-to-point (electrode inserted into cuff detail) . 15
Figure 6 – Test set-up – Resistance point-to-point (hanging clamp sleeve-to-sleeve
procedure) . 16
Figure 7 – Clamps or electrodes for hanging garment test . 16
Figure 8 – Test set-up – Resistance point-to-groundable point (cuff-to-groundable-

point procedure with insulative sleeve inserts) . 17
Figure 9 – Test set-up – Resistance point-to-groundable point (sleeve-to-groundable-
point procedure with insulative sleeve inserts) . 17
Figure 10 – Groundable garment cuff test . 18
Figure 11 – Test set-up – Groundable static control garment system resistance
(groundable garment in combination with a person using a meter and hand-held

electrode) . 18
Figure 12 – Test set-up – Groundable static control garment system resistance
(groundable garment in combination with a person using an integrated tester) . 19

Table 1 – Product qualification . 13
Table A.1 – Garment types and resistance values . 20

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INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTROSTATICS –
Part 4-9: Standard test methods for specific applications –
Garments – Resistive characterization

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 61340-4-9 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 2016. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) IEC 61010-1 and IEC 61010-2-030 added as requirements for measurement equipment;
b) testing voltage range for personnel ground path changed from "7 V DC to 30 V DC" to
"7 V DC to 100 V DC";
IEC 61340-4-9:2024 © IEC 2024 – 5 –
c) cleaning requirements changed from a minimum of five cycles of cleaning to a minimum of
three cycles of cleaning;
d) moderate humidity requirements deleted;
e) figures replaced with generic drawings.
The text of this International Standard is based on the following documents:
Draft Report on voting
101/718/FDIS 101/721/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.
IMPORTANT – The "colour inside" logo on the cover page of this document indicates
that it contains colours which are considered to be useful for the correct understanding
of its contents. Users should therefore print this document using a colour printer.

– 6 – IEC 61340-4-9:2024 © IEC 2024
INTRODUCTION
This part of IEC 61340 provides test methods for evaluating the electrical resistance of
garments that contain surface conductive or dissipative components or materials used in the
electronics industry for the control of electrostatic discharge. This document defines procedures
for measuring electrical resistance, including a system resistance test for garments that provide
a ground path for personnel.
Clothing made from synthetic fibres is a common source of electrostatic charge. Wearing an
appropriate static control garment over personnel clothing can minimize the effect of this
charge. To effectively control electrostatic charges of the static control garments and effectively
shield the electrostatic field of personnel clothing, the static control garment should be
grounded.
Three categories of garments are considered in this document.
a) A static control garment can suppress or otherwise affect an electric field from clothing worn
underneath the garment without being attached to ground. However, without grounding, a
charge can accumulate on conductive or dissipative elements of a garment, if present,
resulting in a charged source.
b) A groundable static control garment can provide a higher level of suppression when the
lower resistance fabric is connected to ground.
c) A groundable static control garment system provides a ground path for a person that
suppresses the electrical field from clothing worn underneath the garment and also bonds
the skin of the wearer to an identified ground path. Groundable static control garment
systems can also be used in conjunction with a continuous or constant monitoring system
in a manner similar to those used in continuous monitoring of wrist straps in an ESD
protected area (EPA).
Resistive characterization is only one aspect to consider in evaluating garments for any specific
application. To fully characterize a garment, it can be necessary to take into consideration
electrical field attenuation, static decay, peak voltage, residual voltage and triboelectric
charging. Other attributes related to applications and environments, such as cleanroom
compatibility, chemical and fire resistance, should be evaluated in the garment selection
process but are beyond the scope of this document.
Garments constructed from fabrics made with fibres that are not surface conductive but can
have other related properties that impart some level of electrostatic charge dissipation or
suppression when connected to ground, are not specifically measured by the methods provided
in this document. This being the case, some garment fabrics and construction can allow for
surface voltage accumulation and charge transfer to occur which can be detrimental to
electronic items.
Alternate methods for evaluating the electrostatic properties of garments are described in
IEC TS 61340-4-2 [1] .
___________
Numbers in square brackets refer to the Bibliography.

IEC 61340-4-9:2024 © IEC 2024 – 7 –
ELECTROSTATICS –
Part 4-9: Standard test methods for specific applications –
Garments – Resistive characterization

1 Scope
This part of IEC 61340 provides test methods for measuring the electrical resistance of
garments used for static control applications. These test methods can be used for evaluating
outer garments that are homogenously conductive or homogeneously dissipative, or that utilize
surface conductive or surface dissipative components or elements.
NOTE It is possible that the test methods defined in this document will not be able to measure materials with buried
conductive layers.
The resistance point-to-point test method tests the electrical resistance between the two
sleeves, any two panels or any two electrically interconnected components of the static control
garment, including the electrical resistance across the seams and cuffs of the garment as
applicable.
An alternate sleeve-to-sleeve test method is described, using clamps to hang a garment.
Static control garments that electrically bond to the wearer and provide a path to ground from
the wearer are evaluated using the resistance point-to-point test method, the resistance point-
to-groundable point test method, as well as a system test to determine the resistance from the
person through the garment to the groundable point of the garment system.
A band resistance measurement test is provided in IEC 61340-4-6 which can be used for
garments so equipped with cuffs that are intended to perform the same function as a wrist strap
band.
The system test with a person wearing a groundable
...