IEC 61340-4-9:2024

IEC 61340-4-9 ®
Edition 3.0 2024-10
COMMENTED VERSION
INTERNATIONAL
STANDARD
colour
inside
Electrostatics –
Part 4-9: Standard test methods for specific applications – Garments – Resistive
characterization
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IEC 61340-4-9 ®
Edition 3.0 2024-10
COMMENTED VERSION
INTERNATIONAL
STANDARD
colour
inside
Electrostatics –
Part 4-9: Standard test methods for specific applications – Garments – Resistive
characterization
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 17.200.99, 29.020 ISBN 978-2-8322-9965-4
– 2 – IEC 61340-4-9:2024 CMV © 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 .9
4.1 General .
4.2 Low humidity .
4.3 Moderate humidity .
5 Equipment and materials .9
5.1 Test equipment requirements .
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 . 10
5.2.1 Cylindrical electrodes . 10
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 . 11
6.1 Sample preparation . 11
6.1.1 General . 11
6.1.2 Sample size .
6.1.3 Sample sketch .
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 . 13
6.3.5 Groundable static control garment system . 13
7 Product qualification . 13
8 Reporting . 14
Annex A (informative) Garment types and resistance values . 27
Annex B (informative) Data collection sheet (example) . 28
Bibliography . 30
List of comments . 31

Figure 1 – Test set-up – Resistance point-to-point (sleeve-to-sleeve procedure with
insulative sleeve inserts) . 15
Figure 2 – Test set-up – Resistance point-to-point (insulative sleeve insert inserted
into sleeve detail) . 16
Figure 3 – Test set-up – Resistance point-to-point (panel-to-panel procedure with
insulative support surface). 17
Figure 4 – Test set-up – Resistance point-to-point (cuff-to-cuff procedure with
insulative sleeve inserts) . 18
Figure 5 – Test set-up – Resistance point-to-point (electrode inserted into cuff detail) . 19
Figure 6 – Test set-up – Resistance point-to-point (hanging clamp sleeve-to-sleeve
procedure) . 20
Figure 7 – Clamps/ or electrodes for hanging garment test . 21
Figure 8 – Test set-up – Resistance point-to-groundable point (cuff-to-groundable-
point procedure with insulative sleeve inserts) . 22
Figure 9 – Test set-up – Resistance point-to-groundable point (sleeve-to-groundable-
point procedure with insulative sleeve inserts) . 23
Figure 10 – Groundable garment cuff test . 24
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) . 25
Figure 12 – Test set-up – Groundable static control garment system resistance
(groundable garment in combination with a person using an integrated tester) . 26

Table 1 – Product qualification . 14
Table A.1 – Garment types and resistance values . 27

– 4 – IEC 61340-4-9:2024 CMV © IEC 2024
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTROSTATICS –
Part 4-9: Standard test methods for specific applications –
Garments – Resistive characterization

FOREWORD
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