IEC 61340-4-8:2014
(Main)Electrostatics - Part 4-8: Standard test methods for specific applications - Electrostatic discharge shielding - Bags
Electrostatics - Part 4-8: Standard test methods for specific applications - Electrostatic discharge shielding - Bags
IEC 61340-4-8:2014 provides a test method for evaluating the performance of electrostatic discharge shielding bags tested according to the requirements of IEC 61340-5-3. The design voltage for the test apparatus is 1 000 V d.c. The test method presented in this standard can also be applied to packaging other than shielding bags. The purpose of this standard is to ensure that testing laboratories who use this test method to evaluate a given packaging material will obtain similar results. This standard does not address protection from electromagnetic interference (EMI), radio frequency interference (RFI), electromagnetic pulsing (EMP) nor protection against volatile materials. This edition includes the following significant technical changes with respect to the previous edition:
a) modification to the title to include the word "Electrostatic" before discharge shielding";
b) removal of normative references ANSI/ESD STM5.1 and ASTM D-257-78 and replaced by normative references IEC 61340-3-1 and IEC 60093;
c) new normative reference to IEC 61340-5-3 added, because the requirement for shielding bags have been included in this standard;
d) imperial units have been removed.
Electrostatique - Partie 4-8: Méthodes d'essai normalisées pour des applications spécifiques - Blindage contre les décharges électrostatiques - Sacs
L'IEC 61340-4-8:2014 fournit une méthode d'essai pour l'évaluation des performances des sacs de blindage contre les décharges électrostatiques lorsqu'ils sont soumis aux essais conformément aux exigences de l'IEC 61340-5-3. La tension de conception de l'appareillage d'essai est de 1 000 V en courant continu. La méthode d'essai présentée dans la présente norme peut aussi être appliquée à des emballages autres que les sacs de blindage. La présente norme est destinée à assurer que les laboratoires d'essai qui utilisent cette méthode d'essai pour évaluer un matériau d'emballage donné obtiennent des résultats similaires. La présente norme ne traite ni de la protection contre les perturbations électromagnétiques (EMI), les perturbations à radiofréquences (RFI), les impulsions électromagnétiques (EMP) ni de la protection contre les matériaux volatils. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
a) modification du titre; ajout du mot "électrostatiques" avant "blindage contre les décharges";
b) retrait des références normatives l'ANSI/ESD STM5.1 ainsi que l'ASTM-257-78; remplacées par les références normatives IEC 61340-3-1 et IEC 60093;
c) nouvelle référence normative à l'IEC 61340-5-3 a été ajoutée, car les exigences pour les blindages des sacs sont spécifiés dans cette norme;
d) les unités anglaises ont été supprimées.
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Standards Content (Sample)
IEC 61340-4-8 ®
Edition 2.0 2014-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electrostatics –
Part 4-8: Standard test methods for specific applications – Electrostatic
discharge shielding – Bags
Électrostatique –
Partie 4-8: Méthodes d’essai normalisées pour des applications spécifiques –
Blindage contre les décharges électrostatiques – Sacs
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IEC 61340-4-8 ®
Edition 2.0 2014-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electrostatics –
Part 4-8: Standard test methods for specific applications – Electrostatic
discharge shielding – Bags
Électrostatique –
Partie 4-8: Méthodes d’essai normalisées pour des applications spécifiques –
Blindage contre les décharges électrostatiques – Sacs
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX M
ICS 17.220.99; 29.020 ISBN 978-2-8322-1925-6
– 2 – IEC 61340-4-8:2014 © IEC 2014
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Required equipment . 7
4.1 ESD simulator . 7
4.2 Waveform verification equipment . 7
4.2.1 General . 7
4.2.2 Oscilloscope . 7
4.2.3 Current probe . 7
4.2.4 High voltage resistor . 7
Capacitive probe . 7
4.3
4.4 Discharge electrode and ground electrode . 7
4.5 Bag size . 7
4.6 Computer/software . 8
4.7 Environmental chamber . 8
5 ESD simulator waveform verification procedure . 8
6 System verification procedure . 8
7 Test procedure including conditioning . 9
8 Reporting. 9
Annex A (informative) Energy calculation program . 13
Figure 1 – ESD simulator . 10
Figure 2 – Parallel plate capacitive probe . 11
Figure 3 – Current waveform through a 500 Ω resistor . 12
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTROSTATICS –
Part 4-8: Standard test methods for specific applications –
Electrostatic discharge shielding – Bags
FOREWORD
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International Standard IEC 61340-4-8 has been prepared by IEC technical committee 101:
Electrostatics.
This second edition cancels and replaces the first edition published in 2010 and constitutes a
technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) modification to the title to include the word "Electrostatic" before discharge shielding";
b) removal of normative references ANSI/ESD STM5.1 and ASTM D-257-78 and replaced by
normative references IEC 61340-3-1 and IEC 60093;
c) new normative reference to IEC 61340-5-3 added, because the requirement for shielding
bags have been included in this standard;
d) imperial units have been removed.
– 4 – IEC 61340-4-8:2014 © IEC 2014
The text of this standard is based on the following documents:
FDIS Report on voting
101/448/FDIS 101/456A/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
...
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