IEC TS 61340-4-2:2013

Electrostatics - Part 4-2: Standard test methods for specific applications - Electrostatic properties of garments

IEC/TS 61340-4-2:2013 describes test methods and procedures that can be used to evaluate the electrostatic charging and discharging propensity, field suppression properties and charge dissipation properties of garments and materials from which garments are constructed.

Electrostatique - Partie 4-2: Méthodes d'essai normalisées pour des applications spécifiques - Propriétés électrostatiques des vêtements

La CEI/TS 61340-4-2:2013 décrit les méthodes et les procédures d'essai qui peuvent être utilisées pour évaluer l'aptitude à acquérir et à perdre des charges électrostatiques, les propriétés de suppression de champ et les propriétés de dissipation de charge des vêtements et des matériaux à partir desquels des vêtements sont fabriqués.

General Information

• Status: Published
• Publication Date: 19-Jun-2013
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 17.220.99 - Other standards related to electricity and magnetism
• ICS: 29.020 - Electrical engineering in general
• Technical Committee: TC 101 - Electrostatics
• Drafting Committee: PT 61340-4-2 - TC 101/PT 61340-4-2
• Current Stage: PPUB - Publication issued
• Start Date: 15-Sep-2013
• Completion Date: 20-Jun-2013

Standards Content (Sample)

IEC/TS 61340-4-2 ®
Edition 1.0 2013-06
TECHNICAL
SPECIFICATION
SPÉCIFICATION
TECHNIQUE
colour
inside
Electrostatics –
Part 4-2: Standard test methods for specific applications – Electrostatic
properties of garments
Électrostatique –
Partie 4-2: Méthodes d’essai normalisées pour des applications spécifiques –
Propriétés électrostatiques des vêtements

IEC/TS 61340-4-2:2013
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IEC/TS 61340-4-2 ®
Edition 1.0 2013-06
TECHNICAL
SPECIFICATION
SPÉCIFICATION
TECHNIQUE
colour
inside
Electrostatics –
Part 4-2: Standard test methods for specific applications – Electrostatic

properties of garments
Électrostatique –
Partie 4-2: Méthodes d’essai normalisées pour des applications spécifiques –

Propriétés électrostatiques des vêtements

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX XA
ICS 17.220.99; 29.020 ISBN 978-2-83220-891-5

– 2 – TS 61340-4-2 © IEC:2013
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 Preparation of samples and test materials . 9
5.1 Samples . 9
5.2 Test equipment and materials . 9
6 Test methods. 9
6.1 General . 9
6.2 Resistance and resistivity . 10
6.2.1 Selection of the appropriate resistance measurement test method . 10
6.2.2 Conversion to resistivity values . 11
6.3 Charge decay time . 11
6.3.1 Selection of the appropriate charge decay time test method . 11
6.3.2 Corona charging method . 12
6.3.3 Induction charging method . 12
6.3.4 Charge decay by conduction through a garment to a human body . 12
6.3.5 Surface potential suppression of isolated garments . 12
6.4 Measurement of electrostatic discharges . 12
6.5 Field suppression . 13
6.6 Tribocharging tests . 13
6.6.1 General . 13
6.6.2 Tribocharging by removal of garments . 14
6.6.3 Tribocharging the outer surface of garments . 14
6.6.4 Tribocharging using seats . 14
6.7 Clinging tests . 14
6.8 Capacitance loading . 14
Annex A (normative) Tribocharging by removal of garments. 16
Annex B (normative) Tribocharging using seats . 20
Annex C (normative) Test of chargeability . 25
Annex D (normative) Capacitance loading . 37
Annex E (informative) Simple tribocharging tests . 49
Bibliography . 50

Figure A.1 – Test equipment for measuring body voltage and charge on removed
garments . 17
Figure B.1 – Example of test equipment set up for measuring body voltage when rising
from a seat . 22
Figure B.2 – Typical body voltage recordings . 24
Figure C.1 – Diagram of the test stand with a mannequin . 26
Figure C.2 – Measuring scheme with a mannequin and Faraday cage . 27
Figure C.3 – Measuring scheme with a mannequin and net table . 27
Figure C.4 – Net table used to measure the charging level of clothes . 28

TS 61340-4-2 © IEC:2013 – 3 –
Figure C.5 – Measuring scheme with a test person and net table . 29
Figure C.6 – Possible ways of taking off clothes from the mannequin trunk or from the
test person . 32
Figure C.7 – Diagram of the stand for testing mechanical tribocharging on the outer
surface of clothing . 34
Figure C.8 – Diagram of the system for measurement of the test person charging level
resulting from manual rubbing of its clothing . 35
Figure D.1 – Example of an arrangement for measurement of corona charge decay
and arrangements for ‘open backing’ and ‘earthed backing’ . 38
Figure D.2 – Equipment for charge decay time calibration . 40
Figure D.3 – Arrangement for measuring received charge . 41
Figure D.4 – Example of variation of capacitance loading with quantity of corona . 45
Figure D.5 – Adjustment of factor for matching induction to conduction measurements . 48

Table 1 – Suitability of test methods for garments and garment materials . 10
Table 2 – Test method standards for resistance measurements . 10

– 4 – TS 61340-4-2 © IEC:2013
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTROSTATICS –
Part 4-2: Standard test methods for specific applications –
Electrostatic properties of garments

FOREWORD
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