IEC 61340-2-1:2015
(Main)Electrostatics - Part 2-1: Measurement methods - Ability of materials and products to dissipate static electric charge
Electrostatics - Part 2-1: Measurement methods - Ability of materials and products to dissipate static electric charge
IEC 61340-2-1:2015 describes test methods for measuring the rate of dissipation of static charge of insulating and static dissipative materials and products. It includes a generic description of test methods and detailed test procedures for specific applications. The two test methods for measuring charge decay time, one using corona charging and one using a charged metal plate are different and may not give equivalent results. Nevertheless, each method has a range of applications for which it is best suited. The corona charging method is suitable for evaluating the ability of materials, e.g. textiles, packaging, etc., to dissipate charge from their own surfaces. The charged metal plate method is suitable for evaluating the ability of materials and objects such as gloves, finger cots, hand tools, etc. to dissipate charge from conductive objects placed on or in contact with them. The charged plate method may not be suitable for evaluating the ability of materials to dissipate charge from their own surfaces. In addition to its general application, this horizontal standard is also intended for use by technical committees in the preparation of standards in accordance with the principles laid down in IEC Guide 108. This edition includes the following significant technical changes with respect to the previous edition:
a) the first edition supported requirements in IEC TR 61340-5-1, but with the revision of IEC TR 61340-5-1 into an International Standard, this support is no longer required; references to IEC 61340-5-1 have been removed;
b) the introduction gives additional information on when charge decay time measurements are appropriate, and the applications for which each of the two test methods are best suited;
c) procedures for performance verification of measuring instruments for the corona charging method have been added. It has the status of a horizontal standard in accordance with IEC Guide 108.
Electrostatique - Partie 2-1: Méthodes de mesure - Capacité des matériaux et des produits à dissiper des charges électrostatiques
L'IEC 61340-2-1:2015 décrit les méthodes d'essai pour mesurer le taux de dissipation de charge statique des matériaux et des produits isolants et électrostatiquement dissipatifs. Elle comprend une description générique des méthodes d'essai et les procédures d'essai détaillées pour des applications spécifiques. Les deux méthodes d'essai pour mesurer le temps de décroissance de la charge, l'une utilisant la charge par effet de couronne et l'autre utilisant une plaque de métal chargée sont différentes et peuvent ne pas donner des résultats équivalents. Néanmoins, chaque méthode comporte une plage d'applications pour lesquelles elle est la plus adaptée. La méthode de la charge par effet de couronne convient à l'évaluation de l'aptitude des matériaux (p. ex.: textiles, emballages, etc.) à dissiper la charge de leurs propres surfaces. La méthode de la plaque de métal chargée convient à l'évaluation de l'aptitude des matériaux et objets (p. ex.: gants, doigtiers, outils à main, etc.) à dissiper la charge des objets conducteurs placés sur eux ou en contact avec eux. La méthode de la plaque de métal chargée peut ne pas convenir à l'évaluation de l'aptitude des matériaux à dissiper la charge de leurs propres surfaces. Outre son application générale, cette norme horizontale est également destinée à l'usage des comités d'études dans la préparation des normes, conformément aux principes établis dans le Guide 108 de l'IEC. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
a) la première édition prenait en charge les exigences de l'IEC TR 61340-5-1, mais avec la révision de l'IEC TR 61340-5-1 pour en faire une Norme internationale cette prise en charge n'est plus exigée; les références à l'IEC 61340-5-1 ont été supprimées;
b) l'introduction donne des informations complémentaires sur le moment où les mesures du temps de décroissance de la charge sont appropriées, ainsi que les applications pour lesquelles chacune des deux méthodes d'essai est la plus adaptée;
c) des procédures ont été ajoutées pour vérifier les performances des instruments de mesure dans le cadre de la méthode de charge par effet de couronne. Elle a le statut de norme horizontale conformément au Guide IEC 108.
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Electrostatics –
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Electrostatics –
Part 2-1: Measurement methods – Ability of materials and products to dissipate
static electric charge
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 17.220.99; 29.020 ISBN 978-2-8322-3945-2
IEC 61340-2-1 ®
Edition 2.1 2022-06
CONSOLIDATED VERSION
REDLINE VERSION
colour
inside
HORIZONTAL PUBLICATION
Electrostatics –
Part 2-1: Measurement methods – Ability of materials and products to dissipate
static electric charge
– 2 – IEC 61340-2-1:2015+AMD1:2022 CSV
© IEC 2022
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 8
4 Method of measurement of charge decay . 9
4.1 Principles . 9
4.2 Environmental conditions . 9
4.3 Apparatus for measurement of corona charge decay . 10
4.3.1 Physical design features . 10
4.3.2 Containment of test material . 11
4.3.3 Corona charge deposition . 11
4.3.4 Fieldmeter . 11
4.4 Apparatus for measurement of contact charge decay . 12
4.4.1 Physical design features . 12
4.4.2 Charge decay time (t ) . 13
sd
5 Practical application of test methods and procedures . 14
5.1 General . 14
5.2 Charge decay test for textile materials . 14
5.2.1 Selection of test method . 14
5.2.2 Test surface preparation . 14
5.2.3 Testing . 15
5.2.4 Results . 15
5.2.5 Test report . 15
5.3 Charge decay test via gloves, finger cots or tools . 16
5.3.1 Selection of test method . 16
5.3.2 Common steps in testing . 16
5.3.3 Test procedure for charge decay properties of finger cots as worn . 16
5.3.4 Test procedure for the charge decay properties of gloves as worn . 17
5.3.5 Test report for finger cots or gloves . 17
5.3.6 Test procedure for the charge decay properties of tools . 17
5.3.7 Test report for tools . 20
5.4 Null test for CPM. 20
Annex A (normative) Performance verification of measuring instrumentation. 21
A.1 Verification of corona charge decay measuring instrumentation . 21
A.1.1 Aspects to be verified . 21
A.1.2 Surface potential sensitivity verification . 21
A.1.3 Decay time verification . 21
A.1.4 Verification procedure . 21
A.2 Methods for verification of the capacitance of an isolated conductive plate . 22
A.2.1 General . 22
A.2.2 Capacitance meter method . 22
A.2.3 Charge measuring method . 22
A.2.4 Charge-sharing method . 23
Bibliography . 24
© IEC 2022
Figure 1 – Example of an arrangement for measurement of dissipation of charge using
corona charging . 10
Figure 2 – Example of an arrangement for measurement of dissipation of charge using
a charged plate . 12
Figure 3 – Charged plate detail . 13
Figure 4 – Charge decay time (t ) and offset voltage (U ) . 14
sd 0
Figure 5 – Examples of decay waveforms when testing tools . 20
Figure A.1 – Equivalent circuit for CPM and reference capacitor . 23
– 4 – IEC 61340-2-1:2015+AMD1:2022 CSV
© IEC 2022
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTROSTATICS –
Part 2-1: Measurement methods –
Ability of materials and products
to dissipate static electric charge
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
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patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
This consolidated version of the official IEC Standard and its amendment has been
prepared for user convenience.
IEC 61340-2-1 edition 2.1 contains the second edition (2015-08) [documents
101/446/CDV and 101/462/RVC] and its amendment 1 (2022-06) [documents 101/639/CDV
and 101/651/RVC].
In this Redline version, a vertical line in the margin shows where the technical content
is modified by amendment 1. Additions are in green text, deletions are in strikethrough
red text. A separate Final version with all changes accepted is available in this
publication.
© IEC 2022
International Standard IEC 61340-2-1 has been prepared by IEC technical committee 101:
Electrostatics.
This second edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) the first edition supported requirements in IEC TR 61340-5-1, but with the revision of IEC
TR 61340-5-1 into an International Standard, this support is no longer required; references
to IEC 61340-5-1[1] have been removed;
b) the introduction gives additional information on when charge decay time measurements
are appropriate, and the applications for which each of the two test methods are best
suited;
c) procedures for performance verification of measuring instruments for the corona charging
method h
...
IEC 61340-2-1 ®
Edition 2.0 2015-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
HORIZONTAL STANDARD
NORME HORIZONTALE
Electrostatics –
Part 2-1: Measurement methods – Ability of materials and products to dissipate
static electric charge
Électrostatique –
Partie 2-1: Méthodes de mesure – Capacité des matériaux et des produits à
dissiper des charges électrostatiques
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
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IEC 61340-2-1 ®
Edition 2.0 2015-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
HORIZONTAL STANDARD
NORME HORIZONTALE
Electrostatics –
Part 2-1: Measurement methods – Ability of materials and products to dissipate
static electric charge
Électrostatique –
Partie 2-1: Méthodes de mesure – Capacité des matériaux et des produits à
dissiper des charges électrostatiques
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 17.220.99; 29.020 ISBN 978-2-8322-2877-7
– 2 – IEC 61340-2-1:2015 © IEC 2015
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
4 Method of measurement of charge decay . 8
4.1 Principles . 8
4.2 Environmental conditions . 9
4.3 Apparatus for measurement of corona charge decay . 10
4.3.1 Physical design features . 10
4.3.2 Containment of test material . 11
4.3.3 Corona charge deposition . 11
4.3.4 Fieldmeter . 11
4.4 Apparatus for measurement of contact charge decay . 12
4.4.1 Physical design features . 12
4.4.2 Charge decay time (t ) . 13
sd
5 Practical application of test methods and procedures . 14
5.1 General . 14
5.2 Charge decay test for textile materials . 14
5.2.1 Selection of test method . 14
5.2.2 Test surface preparation . 14
5.2.3 Testing . 14
5.2.4 Results . 15
5.2.5 Test report . 15
5.3 Charge decay test via gloves, finger cots or tools . 15
5.3.1 Selection of test method . 15
5.3.2 Common steps in testing . 15
5.3.3 Test procedure for charge decay properties of finger cots as worn . 16
5.3.4 Test procedure for the charge decay properties of gloves as worn . 16
5.3.5 Test report for finger cots or gloves . 16
5.3.6 Test procedure for the charge decay properties of tools . 17
5.3.7 Test report for tools . 17
5.4 Null test for CPM. 17
Annex A (normative) Performance verification of measuring instrumentation. 19
A.1 Verification of corona charge decay measuring instrumentation . 19
A.1.1 Aspects to be verified . 19
A.1.2 Surface potential sensitivity verification . 19
A.1.3 Decay time verification . 19
A.1.4 Verification procedure . 19
A.2 Methods for verification of the capacitance of an isolated conductive plate . 20
A.2.1 General . 20
A.2.2 Capacitance meter method . 20
A.2.3 Charge measuring method . 20
A.2.4 Charge-sharing method . 21
Bibliography . 22
Figure 1 – Example of an arrangement for measurement of dissipation of charge using
corona charging . 10
Figure 2 – Example of an arrangement for measurement of dissipation of charge using
a charged plate . 12
Figure 3 – Charged plate detail . 13
Figure 4 – Charge decay time (tsd) and offset voltage (U0) . 13
Figure A.1 – Equivalent circuit for CPM and reference capacitor . 21
– 4 – IEC 61340-2-1:2015 © IEC 2015
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTROSTATICS –
Part 2-1: Measurement methods –
Ability of materials and products
to dissipate static electric charge
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 accur
...
IEC 61340-2-1 ®
Edition 2.1 2022-06
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
HORIZONTAL PUBLICATION
PUBLICATION HORIZONTALE
Electrostatics –
Part 2-1: Measurement methods – Ability of materials and products to dissipate
static electric charge
Électrostatique –
Partie 2-1: Méthodes de mesure – Capacité des matériaux et des produits à
dissiper des charges électrostatiques
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.
Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite
ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie
et les microfilms, sans l'accord écrit de l'IEC ou du Comité national de l'IEC du pays du demandeur. Si vous avez des
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About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.
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(IEV) online.
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need further assistance, please contact the Customer Service
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IEC 61340-2-1 ®
Edition 2.1 2022-06
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Electrostatics –
Part 2-1: Measurement methods – Ability of materials and products to dissipate
static electric charge
Électrostatique –
Partie 2-1: Méthodes de mesure – Capacité des matériaux et des produits à
dissiper des charges électrostatiques
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 17.220.99; 29.020 ISBN 978-2-8322-3975-9
IEC 61340-2-1 ®
Edition 2.1 2022-06
CONSOLIDATED VERSION
REDLINE VERSION
VERSION REDLINE
colour
inside
HORIZONTAL PUBLICATION
PUBLICATION HORIZONTALE
Electrostatics –
Part 2-1: Measurement methods – Ability of materials and products to dissipate
static electric charge
Électrostatique –
Partie 2-1: Méthodes de mesure – Capacité des matériaux et des produits à
dissiper des charges électrostatiques
– 2 – IEC 61340-2-1:2015+AMD1:2022 CSV
© IEC 2022
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 8
4 Method of measurement of charge decay . 9
4.1 Principles . 9
4.2 Environmental conditions . 9
4.3 Apparatus for measurement of corona charge decay . 10
4.3.1 Physical design features . 10
4.3.2 Containment of test material . 11
4.3.3 Corona charge deposition . 11
4.3.4 Fieldmeter . 11
4.4 Apparatus for measurement of contact charge decay . 12
4.4.1 Physical design features . 12
4.4.2 Charge decay time (t ) . 13
sd
5 Practical application of test methods and procedures . 14
5.1 General . 14
5.2 Charge decay test for textile materials . 14
5.2.1 Selection of test method . 14
5.2.2 Test surface preparation . 14
5.2.3 Testing . 15
5.2.4 Results . 15
5.2.5 Test report . 15
5.3 Charge decay test via gloves, finger cots or tools . 16
5.3.1 Selection of test method . 16
5.3.2 Common steps in testing . 16
5.3.3 Test procedure for charge decay properties of finger cots as worn . 16
5.3.4 Test procedure for the charge decay properties of gloves as worn . 17
5.3.5 Test report for finger cots or gloves . 17
5.3.6 Test procedure for the charge decay properties of tools . 17
5.3.7 Test report for tools . 20
5.4 Null test for CPM. 20
Annex A (normative) Performance verification of measuring instrumentation. 21
A.1 Verification of corona charge decay measuring instrumentation . 21
A.1.1 Aspects to be verified . 21
A.1.2 Surface potential sensitivity verification . 21
A.1.3 Decay time verification . 21
A.1.4 Verification procedure . 21
A.2 Methods for verification of the capacitance of an isolated conductive plate . 22
A.2.1 General . 22
A.2.2 Capacitance meter method . 22
A.2.3 Charge measuring method . 22
A.2.4 Charge-sharing method . 23
Bibliography . 24
© IEC 2022
Figure 1 – Example of an arrangement for measurement of dissipation of charge using
corona charging . 10
Figure 2 – Example of an arrangement for measurement of dissipation of charge using
a charged plate . 12
Figure 3 – Charged plate detail . 13
Figure 4 – Charge decay time (t ) and offset voltage (U ) . 14
sd 0
Figure 5 – Examples of decay waveforms when testing tools . 20
Figure A.1 – Equivalent circuit for CPM and reference capacitor . 23
– 4 – IEC 61340-2-1:2015+AMD1:2022 CSV
© IEC 2022
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTROSTATICS –
Part 2-1: Measurement methods –
Ability of materials and products
to dissipate static electric charge
FOREWORD
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