BS EN 61340-2-1:2015
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Electrostatics – Measurement methods. Ability of materials and products to dissipate static electric charge
| Published By | Publication Date | Number of Pages |
| BSI | 2015 | 28 |
This part of IEC 61340 describes test methods for measuring the rate of dissipation of static charge of insulating and static dissipative materials and products.
It includes a generic description of test methods and detailed test procedures for specific applications.
The two test methods for measuring charge decay time, one using corona charging and one using a charged metal plate are different and may not give equivalent results. Nevertheless, each method has a range of applications for which it is best suited. The corona charging method is suitable for evaluating the ability of materials, e.g. textiles, packaging, etc., to dissipate charge from their own surfaces. The charged metal plate method is suitable for evaluating the ability of materials and objects such as gloves, finger cots, hand tools, etc. to dissipate charge from conductive objects placed on or in contact with them. The charged plate method may not be suitable for evaluating the ability of materials to dissipate charge from their own surfaces.
In addition to its general application, this horizontal standard is also intended for use by technical committees in the preparation of standards in accordance with the principles laid down in IEC Guide 108 .
One of the responsibilities of a technical committee is, wherever applicable, to make use of horizontal standards in the preparation of its publications. The contents of this horizontal standard shall not apply unless specifically referred to or included in the relevant publications.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 4 | European foreword Endorsement notice |
| 5 | Annex ZA (normative) Normative references to international publications with their corresponding European publications |
| 6 | English CONTENTS |
| 8 | FOREWORD |
| 10 | INTRODUCTION |
| 11 | 1 Scope 2 Normative references 3 Terms and definitions |
| 12 | 4 Method of measurement of charge decay 4.1 Principles |
| 13 | 4.2 Environmental conditions |
| 14 | 4.3 Apparatus for measurement of corona charge decay 4.3.1 Physical design features Figures Figure 1 – Example of an arrangement for measurement of dissipation of charge using corona charging |
| 15 | 4.3.2 Containment of test material 4.3.3 Corona charge deposition 4.3.4 Fieldmeter |
| 16 | 4.4 Apparatus for measurement of contact charge decay 4.4.1 Physical design features Figure 2 – Example of an arrangement for measurement of dissipation of charge using a charged plate |
| 17 | 4.4.2 Charge decay time (tsd) Figure 3 – Charged plate detail Figure 4 – Charge decay time (tsd) and offset voltage (U0) |
| 18 | 5 Practical application of test methods and procedures 5.1 General 5.2 Charge decay test for textile materials 5.2.1 Selection of test method 5.2.2 Test surface preparation 5.2.3 Testing |
| 19 | 5.2.4 Results 5.2.5 Test report 5.3 Charge decay test via gloves, finger cots or tools 5.3.1 Selection of test method 5.3.2 Common steps in testing |
| 20 | 5.3.3 Test procedure for charge decay properties of finger cots as worn 5.3.4 Test procedure for the charge decay properties of gloves as worn 5.3.5 Test report for finger cots or gloves |
| 21 | 5.3.6 Test procedure for the charge decay properties of tools 5.3.7 Test report for tools 5.4 Null test for CPM |
| 23 | Annex A (normative) Performance verification of measuring instrumentation A.1 Verification of corona charge decay measuring instrumentation A.1.1 Aspects to be verified A.1.2 Surface potential sensitivity verification A.1.3 Decay time verification A.1.4 Verification procedure |
| 24 | A.2 Methods for verification of the capacitance of an isolated conductive plate A.2.1 General A.2.2 Capacitance meter method A.2.3 Charge measuring method A.2.3.1 General A.2.3.2 Equipment A.2.3.3 Procedure |
| 25 | A.2.4 Charge-sharing method Figure A.1 – Equivalent circuit for CPM and reference capacitor |
| 26 | Bibliography |
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