EVALUATION OF HUMAN EXPOSURE TO ELECTROMAGNETIC FIELDS FROM SHORT RANGE DEVICES (SRDS) IN VARIOUS APPLICATIONS OVER THE FREQUENCY RANGE 0 GHZ TO 300 GHZ - PART 1: FIELDS PRODUCED BY DEVICES USED FOR ELECTRONIC ARTICLE SURVEILLANCE, RADIO FREQUENCY IDENTIFICATION AND SIMILAR SYSTEMS
International Electrotechnical Committee
FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms, definitions, and abbreviations
3.1 Quantities
3.2 Constants
3.3 Terms and definitions
4 Measurements and calculations for equipment evaluation
4.1 Introduction
4.2 Evaluation against reference values
4.2.1 General
4.2.2 Direct measurement for comparison against reference
values
4.2.3 Spatial measurements for comparison against
reference values
4.2.4 Modelling and analysis including field non-uniformity
4.3 Specific absorption rate (SAR) measurements
4.3.1 General
4.3.2 Internal electric field strength measurements
4.3.3 Internal temperature measurements
4.3.4 Calorimetric measurements of heat transfer
4.3.5 Phantom models and fluid
4.4 Numerical evaluations for comparison against basic
restrictions
4.4.1 General
4.4.2 Evaluations using homogeneous models
4.4.3 Special case of inductive near-field exposure 100
kHz to 50 MHz
4.4.4 Frequencies > 50 MHz
4.4.5 Localised SAR (100 kHz to 10 GHz)
4.5 Evaluations using non-homogeneous models for
comparison against basic restrictions
4.5.1 General
4.5.2 Anatomical body models
4.5.3 Calculation/modelling method
4.5.4 Position of the body in relation to the unit under
evaluation
4.6 Measurement of limb and touch currents
5 Measurements for field monitoring
5.1 General
5.2 Field measurements
5.2.1 Measurement where persons spend significant periods
of time
5.2.2 Detailed measurements for non-transitory exposure
5.3 Additional evaluation
6 Exposure from sources with multiple frequencies or
complex waveforms
7 Exposure from multiple sources
8 Uncertainty
8.1 General
8.2 Evaluating uncertainties
8.2.1 Individual uncertainties
8.2.2 Combining uncertainties
8.3 Examples of typical uncertainty components
8.3.1 Measurement
8.3.2 Numerical calculation
8.4 Overall uncertainties
9 Evaluation report
Annex A (informative) Characteristics of equipment
Annex B (informative) Information for numerical modelling
Annex C (informative) A simplified method for summation of
multiple sources
Annex D (informative) Uncertainty
Bibliography
Presents procedures for the evaluation of human exposure to electromagnetic fields (EMFs) from devices used in electronic article surveillance (EAS), radio frequency identification (RFID) and similar applications.
| Document Type | Standard |
| Status | Current |
| Publisher | International Electrotechnical Committee |
| Committee | TC 106 |
