BSI PD IEC/TS 61340-4-2:2013
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Electrostatics – Standard test methods for specific applications. Electrostatic properties of garments
| Published By | Publication Date | Number of Pages |
| BSI | 2013 | 56 |
This part of IEC 61340, which is a technical specification, 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.
The test methods described are suitable for evaluating garments worn on or about the upper and lower body, including headwear, but excluding footwear, which is covered in other parts of IEC 61340 (see IEC 61340-4-3 and IEC 61340-4-5)[1]1, and excluding gloves and finger cots.
The test methods described may not be suitable for evaluating garments and garment materials in relation to safety of personnel.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 4 | English CONTENTS |
| 6 | FOREWORD |
| 8 | INTRODUCTION |
| 9 | 1 Scope 2 Normative references |
| 10 | 3 Terms and definitions 4 Atmosphere for conditioning and testing |
| 11 | 5 Preparation of samples and test materials 5.1 Samples 5.2 Test equipment and materials 6 Test methods 6.1 General |
| 12 | 6.2 Resistance and resistivity 6.2.1 Selection of the appropriate resistance measurement test method Tables Table 1 – Suitability of test methods for garments and garment materials Table 2 – Test method standards for resistance measurements |
| 13 | 6.2.2 Conversion to resistivity values 6.3 Charge decay time 6.3.1 Selection of the appropriate charge decay time test method |
| 14 | 6.3.2 Corona charging method 6.3.3 Induction charging method 6.3.4 Charge decay by conduction through a garment to a human body 6.3.5 Surface potential suppression of isolated garments 6.4 Measurement of electrostatic discharges |
| 15 | 6.5 Field suppression 6.6 Tribocharging tests 6.6.1 General |
| 16 | 6.6.2 Tribocharging by removal of garments 6.6.3 Tribocharging the outer surface of garments 6.6.4 Tribocharging using seats 6.7 Clinging tests 6.8 Capacitance loading |
| 18 | Annex A (normative) Tribocharging by removal of garments |
| 19 | Figures Figure A.1 – Test equipment for measuring body voltageand charge on removed garments |
| 22 | Annex B (normative) Tribocharging using seats |
| 24 | Figure B.1 – Example of test equipment set up for measuringbody voltage when rising from a seat |
| 26 | Figure B.2 – Typical body voltage recordings |
| 27 | Annex C (normative) Test of chargeability |
| 28 | Figure C.1 – Diagram of the test stand with a mannequin |
| 29 | Figure C.2 – Measuring scheme with a mannequin and Faraday cage Figure C.3 – Measuring scheme with a mannequin and net table |
| 30 | Figure C.4 – Net table used to measure the charging level of clothes |
| 31 | Figure C.5 – Measuring scheme with a test person and net table |
| 34 | Figure C.6 – Possible ways of taking off clothes from the mannequin trunk or from the test person |
| 36 | Figure C.7 – Diagram of the stand for testing mechanical tribocharging on the outer surface of clothing |
| 37 | Figure C.8 – Diagram of the system for measurement of the test person charging level resulting from manual rubbing of its clothing |
| 39 | Annex D (normative) Capacitance loading |
| 40 | Figure D.1 – Example of an arrangement for measurement of corona charge decay and arrangements for ‘open backing’ and ‘earthed backing’ |
| 42 | Figure D.2 – Equipment for charge decay time calibration |
| 43 | Figure D.3 – Arrangement for measuring received charge |
| 47 | Figure D.4 – Example of variation of capacitance loading with quantity of corona |
| 50 | Figure D.5 – Adjustment of factor for matching induction to conduction measurements |
| 51 | Annex E (informative) Simple tribocharging tests |
| 52 | Bibliography |
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BSI PD IEC/TS 61340-4-2:2013
Electrostatics – Standard test methods for specific applications. Electrostatic properties of garments Published By Publication…
