Electrostatics - Part 5-4: Protection of electronic devices from electrostatic phenomena - Compliance verification

IEC TS 61340-5-4:2021(E) describes compliance verification testing for technical items that are included in ESD control programs, such as those specified in IEC 61340-5-1.
Test methods are based on those specified in IEC 61340-5-1 and other parts of the IEC 61340 series, and are simplified where necessary for the purposes of compliance verification, to be performed by competent personnel.
Users can, by reference to this document in their compliance verification plan, adopt the necessary test methods described herein without change or addition. Alternatively, test methods described in this document can be adapted to match the requirements of their own ESD control program, provided deviations in equipment or procedure are documented in their compliance verification plan.
Compliance verification test frequency is not specified in this document. Guidance on how users can consider compliance verification test frequency is given in informative Annex A.
Product qualification is excluded from the scope of this document.
This first edition cancels and replaces IEC TR 61340-5-4 published in 2019. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to IEC TR 61340­5-4:  
test methods in the main body of the document have been made normative, and consequently normative references have been added;
the term "ESD ground" has been added and defined;
description of equipment for measuring low resistance has been added;
user specified electrodes, including surface resistance bar electrodes, are permitted to be used for resistance measurements;
an informative annex on verification of compliance verification test equipment has been added;
compliance verification of person-footwear-flooring systems by measuring body voltage has been moved to an informative annex.

General Information

Status
Published
Publication Date
29-Aug-2021
Technical Committee
Current Stage
PPUB - Publication issued
Completion Date
30-Aug-2021
Ref Project

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IEC TS 61340-5-4:2021 - Electrostatics - Part 5-4: Protection of electronic devices from electrostatic phenomena - Compliance verification
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IEC TS 61340-5-4
Edition 1.0 2021-08
TECHNICAL
SPECIFICATION
colour
inside
Electrostatics –
Part 5-4: Protection of electronic devices from electrostatic phenomena –
Compliance verification
IEC TS 61340-5-4:2021-08(en)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC TS 61340-5-4
Edition 1.0 2021-08
TECHNICAL
SPECIFICATION
colour
inside
Electrostatics –
Part 5-4: Protection of electronic devices from electrostatic phenomena –
Compliance verification
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 17.220.99; 29.020 ISBN 978-2-8322-1017-5

Warning! Make sure that you obtained this publication from an authorized distributor.

® Registered trademark of the International Electrotechnical Commission
---------------------- Page: 3 ----------------------
– 2 – IEC TS 61340-5-4:2021  IEC 2021
CONTENTS

FOREWORD ........................................................................................................................... 9

INTRODUCTION ................................................................................................................... 11

1 Scope ............................................................................................................................ 12

2 Normative references .................................................................................................... 12

3 Terms and definitions .................................................................................................... 12

4 Personnel safety ............................................................................................................ 13

5 Test methods and test frequency ................................................................................... 13

6 Test equipment .............................................................................................................. 13

6.1 Selection of test equipment ................................................................................... 13

6.2 AC outlet analyzer (or mains socket tester) ........................................................... 13

6.3 AC circuit tester (impedance meter) ...................................................................... 14

6.4 Charged plate monitor (CPM) ................................................................................ 14

6.4.1 CPM requirements ......................................................................................... 14

6.4.2 Portable CPM kit............................................................................................ 14

6.5 Concentric ring electrode assembly ...................................................................... 14

6.6 Resistance measuring apparatus (ohmmeter) ....................................................... 14

6.7 Low resistance meter ............................................................................................ 15

6.8 Electrostatic field meter ........................................................................................ 15

6.9 Electrostatic voltmeter .......................................................................................... 15

6.10 Footwear electrode ............................................................................................... 15

6.11 Hand-held electrode .............................................................................................. 15

6.12 Resistance measurement electrode(s) .................................................................. 15

6.13 Insulative support surface ..................................................................................... 16

6.14 Integrated measurement instrument for wrist strap systems or person-

footwear systems .................................................................................................. 16

6.15 Two-point probe .................................................................................................... 16

6.16 User specified electrodes ...................................................................................... 16

7 Grounding/bonding ........................................................................................................ 17

7.1 Equipment ground and responsibility for checking systems ................................... 17

7.2 Objective .............................................................................................................. 17

7.3 Test equipment ..................................................................................................... 18

7.4 Test procedure for wrist strap bonding points ........................................................ 18

7.5 Troubleshooting wrist strap bonding point failures ................................................. 18

8 Work surfaces ............................................................................................................... 19

8.1 Basis of test procedure ......................................................................................... 19

8.2 Objective .............................................................................................................. 19

8.3 Test equipment ..................................................................................................... 19

8.4 Test procedure ...................................................................................................... 20

8.5 Troubleshooting .................................................................................................... 21

8.5.1 Visual and mechanical check ......................................................................... 21

8.5.2 Electrical test ................................................................................................. 21

9 Wrist strap system ......................................................................................................... 22

9.1 Basis of test procedure ......................................................................................... 22

9.2 Objective .............................................................................................................. 22

9.3 Test equipment ..................................................................................................... 22

9.4 Test procedure ...................................................................................................... 22

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IEC TS 61340-5-4:2021  IEC 2021 – 3 –

9.4.1 Testing with integrated measurement instrument ........................................... 22

9.4.2 Testing with resistance measuring apparatus................................................. 23

9.5 Troubleshooting .................................................................................................... 25

10 Person-footwear system ................................................................................................ 25

10.1 Basis of test procedure ......................................................................................... 25

10.2 Objective .............................................................................................................. 26

10.3 Test equipment ..................................................................................................... 26

10.4 Test procedure ...................................................................................................... 26

10.4.1 Testing with integrated measurement instrument ........................................... 26

10.4.2 Testing with resistance measuring apparatus................................................. 26

10.5 Troubleshooting .................................................................................................... 27

11 Flooring ......................................................................................................................... 28

11.1 Basis of test procedure ......................................................................................... 28

11.2 Objective .............................................................................................................. 28

11.3 Test equipment ..................................................................................................... 28

11.4 Test procedure ...................................................................................................... 28

11.5 Troubleshooting .................................................................................................... 29

12 Person-footwear-flooring system measurement of resistance to ground ......................... 29

12.1 Basis of test procedure ......................................................................................... 29

12.2 Objective .............................................................................................................. 29

12.3 Test equipment ..................................................................................................... 29

12.4 Test procedure ...................................................................................................... 30

12.5 Troubleshooting .................................................................................................... 31

13 Seating .......................................................................................................................... 31

13.1 Basis of test procedure ......................................................................................... 31

13.2 Objective .............................................................................................................. 31

13.3 Test equipment ..................................................................................................... 31

13.4 Test procedure ...................................................................................................... 31

13.5 Troubleshooting .................................................................................................... 33

14 Air ionizers .................................................................................................................... 33

14.1 Basis of test procedure ......................................................................................... 33

14.2 Objective .............................................................................................................. 33

14.3 Test equipment ..................................................................................................... 33

14.4 Test procedure ...................................................................................................... 34

14.4.1 Initial test set-up ............................................................................................ 34

14.4.2 Discharge time test ........................................................................................ 34

14.4.3 Offset voltage test (ion balance) .................................................................... 34

14.5 Troubleshooting .................................................................................................... 34

15 Mobile equipment .......................................................................................................... 35

15.1 Basis of test procedure ......................................................................................... 35

15.2 Objective .............................................................................................................. 35

15.3 Test equipment ..................................................................................................... 35

15.4 Test procedure ...................................................................................................... 35

15.5 Troubleshooting .................................................................................................... 36

16 Groundable static control garment system ..................................................................... 37

16.1 Basis of test procedure ......................................................................................... 37

16.2 Objective .............................................................................................................. 37

16.3 Test equipment ..................................................................................................... 37

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– 4 – IEC TS 61340-5-4:2021  IEC 2021

16.4 Test procedure ...................................................................................................... 38

16.4.1 Testing with integrated measurement instrument ........................................... 38

16.4.2 Testing with resistance measuring apparatus................................................. 38

16.5 Troubleshooting .................................................................................................... 39

17 Static control garments and groundable static control garments..................................... 40

17.1 Point-to-point test method ..................................................................................... 40

17.1.1 Basis of test procedure .................................................................................. 40

17.1.2 Objective ....................................................................................................... 40

17.1.3 Test equipment .............................................................................................. 40

17.1.4 Test procedure .............................................................................................. 40

17.1.5 Troubleshooting ............................................................................................. 41

17.2 Hanging clamp method ......................................................................................... 42

17.2.1 Basis of test procedure .................................................................................. 42

17.2.2 Objective ....................................................................................................... 42

17.2.3 Test equipment .............................................................................................. 42

17.2.4 Test procedure .............................................................................................. 42

17.2.5 Troubleshooting ............................................................................................. 43

18 Packaging ..................................................................................................................... 44

18.1 Basis of test procedure ......................................................................................... 44

18.2 Objective .............................................................................................................. 44

18.3 Test equipment ..................................................................................................... 44

18.4 Test procedure ...................................................................................................... 45

18.4.1 Surface resistance using an integrated resistance measuring instrument ....... 45

18.4.2 Surface resistance using a concentric ring electrode assembly or two

SRBs ............................................................................................................. 45

18.4.3 Surface resistance using a resistance measuring apparatus and two-

point probe .................................................................................................... 46

18.4.4 Point-to-point resistance using a resistance measuring apparatus and

resistance measurement electrodes ............................................................... 47

18.4.5 Volume resistance using resistance measuring apparatus or integrated

resistance measuring instrument ................................................................... 48

18.5 Troubleshooting (surface, point-to-point and volume resistance) ........................... 49

19 Process essential insulators ........................................................................................ 50

19.1 Basis of test procedure ......................................................................................... 50

19.2 Objective .............................................................................................................. 50

19.3 Test equipment ..................................................................................................... 50

19.4 Test procedure ...................................................................................................... 50

19.4.1 Measuring electrostatic field strength at the site of the ESD sensitive

device (ESDS) from electrostatic field source ................................................ 50

19.4.2 Measurement of surface voltage of a process essential insulator ................... 50

19.5 Troubleshooting .................................................................................................... 51

20 Process essential isolated conductors ........................................................................... 51

20.1 Basis of test procedure ......................................................................................... 51

20.2 Objective .............................................................................................................. 51

20.3 Test equipment ..................................................................................................... 51

20.4 Test procedures .................................................................................................... 52

20.5 Troubleshooting .................................................................................................... 52

Annex A (informative) Test frequency ................................................................................. 53

Annex B (informative) Verification of compliance verification test equipment ....................... 54

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IEC TS 61340-5-4:2021  IEC 2021 – 5 –

B.1 General ................................................................................................................. 54

B.2 Charged plate monitor .......................................................................................... 54

B.2.1 Common problems ......................................................................................... 54

B.2.2 Basic charged plate monitor checks ............................................................... 54

B.2.3 Visual checks in the position of measurement ................................................ 54

B.3 Electrodes ............................................................................................................ 55

B.3.1 Common problems ......................................................................................... 55

B.3.2 Visual checks ................................................................................................ 55

B.3.3 Electrode resistance test ............................................................................... 55

B.3.4 Electrode leakage test ................................................................................... 55

B.3.5 Electrode test with known resistance ............................................................. 55

B.4 Resistance measuring apparatus .......................................................................... 56

B.4.1 Common problems ......................................................................................... 56

B.4.2 Testing for leakage within the meter and leads .............................................. 56

B.5 Insulative support surface ..................................................................................... 56

B.5.1 Common problems ......................................................................................... 56

B.5.2 Testing insulative surface resistance ............................................................. 56

B.6 Electrostatic field meter ........................................................................................ 56

B.6.1 Common problems ......................................................................................... 56

B.6.2 Visual and other pre-use checks .................................................................... 57

B.6.3 Checking field meter grounding ..................................................................... 57

B.6.4 Checking the electrostatic field meter operation ............................................. 57

B.7 Electrostatic voltmeter .......................................................................................... 58

B.7.1 Common problems ......................................................................................... 58

B.7.2 Visual and other pre-use checks .................................................................... 58

B.7.3 Checking voltmeter grounding ....................................................................... 58

B.7.4 Checking voltmeter operation ........................................................................ 58

Annex C (informative) Other test methods for static control garments .................................. 60

C.1 General considerations for other test methods ...................................................... 60

C.2 Precautions to be observed when conducting tests ............................................... 60

C.3 Tribocharging tests for garments ........................................................................... 60

C.3.1 Objectives ..................................................................................................... 60

C.3.2 Test equipment for body voltage measurements ............................................ 60

C.3.3 Test procedure for body voltage measurements ............................................. 61

C.3.4 Test equipment for measuring charge on garments ........................................ 64

C.3.5 Test procedure for measuring charge on garments ........................................ 65

C.3.6 Test equipment for measuring electrostatic field or surface voltage on

garments ....................................................................................................... 65

C.3.7 Test procedure for measuring electrostatic field or surface voltage on

garments ....................................................................................................... 66

C.3.8 Troubleshooting tribocharging tests ............................................................... 66

C.4 Charge decay time tests for garments ................................................................... 67

C.4.1 Objective ....................................................................................................... 67

C.4.2 Test equipment for measuring charge decay time after tribocharging ............. 67

C.4.3 Test procedure for measuring charge decay time after tribocharging ............. 67

C.4.4 Test equipment for measuring charge decay time after corona charging ........ 68

C.4.5 Test procedure for measuring charge decay time after corona charging ......... 68

C.4.6 Test equipment for measuring charge decay time after connection to a

DC high-voltage supply .................................................................................. 69

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– 6 – IEC TS 61340-5-4:2021  IEC 2021
C.4.7 Test procedure for measuring charge decay time after connection to a

DC high-voltage supply .................................................................................. 69

C.5 Field suppression tests for garments ..................................................................... 70

C.6 Capacitance loading tests for garments ................................................................ 70

Annex D (informative) Person-footwear-flooring system measurement of body voltage ........ 71

D.1 Basis of test procedure ......................................................................................... 71

D.2 Objective .............................................................................................................. 71

D.3 Test equipment ..................................................................................................... 71

D.4 Test procedure ...................................................................................................... 71

D.5 Troubleshooting .................................................................................................... 71

Annex E (informative) Electrical soldering/desoldering hand tools ....................................... 73

E.1 Basis of test procedure ......................................................................................... 73

E.2 Objective .............................................................................................................. 73

E.3 Test equipment ..................................................................................................... 73

E.4 Test procedure ...................................................................................................... 74

E.4.1 Soldering/desoldering hand tool tip voltage test procedure (hot iron)

using integrated tester or AC millivoltmeter .................................................... 74

E.4.2 Soldering/desoldering hand tool resistance to ground (hot iron) ..................... 74

E.4.3 Soldering/desoldering hand tool resistance to ground (cold iron) ................... 74

E.4.4 Soldering/desoldering hand tool resistance to ground (hot iron) using

low resistance meter ...................................................................................... 75

E.5 Troubleshooting .................................................................................................... 75

Annex F (informative) Hand tools ........................................................................................ 76

F.1 Basis of test procedure ......................................................................................... 76

F.2 Objective .............................................................................................................. 76

F.3 Test equipment ..................................................................................................... 76

F.3.1 Resistance measurements ............................................................................. 76

F.3.2 Charge decay time measurements ................................................................. 76

F.4 Test procedure for hand tool resistance measurements ........................................ 76

F.5 Test procedure for hand tool resistance to ground measurements ......................... 77

F.6 Test procedure for charge decay time measurements ........................................... 78

F.7 Troubleshooting .................................................................................................... 79

Annex G (informative) Constant (continuous) monitors ..............................

...

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