IEC 61340-4-6:2025
(Main)Electrostatics - Part 4-6: Standard test methods for specific applications - Wrist straps
Electrostatics - Part 4-6: Standard test methods for specific applications - Wrist straps
IEC 61340-4-6:2025 provides electrical and mechanical test methods and performance limits for the evaluation, acceptance, and periodic verification testing of wrist straps. 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.
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.
Electrostatique - Partie 4-6 : Méthodes d'essai normalisées pour des applications spécifiques - Bracelets de conduction dissipative
L'IEC 61340-4-6:2025 donne les méthodes d'essai électriques et mécaniques et les limites de performance pour les essais d'évaluation, d'acceptation et de vérification de conformité des bracelets de conduction dissipative. Le présent document 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 DES. 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 rédactionnels formulés lors de la révision de la deuxième édition ont été revus et intégrés, le cas échéant;
b) des références normatives ont été ajoutées pour couvrir la sécurité des appareils.
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Standards Content (Sample)
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
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– 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
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
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