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GB/T 28446.1-2012 English PDF

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GB/T 28446.1-2012: Human exposure to radio frequency fields from hand-held and body-mounted wireless communication devices -- Human models, instrumentation, and procedures -- Part 1: Procedure to determine the specific absorption rate (SAR) for hand-held devices used in clo
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GB/T 28446.1-2012English1674 Add to Cart 5 days [Need to translate] Human exposure to radio frequency fields from hand-held and body-mounted wireless communication devices -- Human models, instrumentation, and procedures -- Part 1: Procedure to determine the specific absorption rate (SAR) for hand-held devices used in clo Valid GB/T 28446.1-2012

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Basic data

Standard ID GB/T 28446.1-2012 (GB/T28446.1-2012)
Description (Translated English) Human exposure to radio frequency fields from hand-held and body-mounted wireless communication devices -- Human models, instrumentation, and procedures -- Part 1: Procedure to determine the specific absorption rate (SAR) for hand-held devices used in clo
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard L06
Classification of International Standard 17.240
Word Count Estimation 84,879
Quoted Standard ISO/IEC GUIDE-1995; ISO/IEC 17025-1999
Adopted Standard IEC 62209-1-2005, IDT
Regulation (derived from) National Standards Bulletin No. 13 of 2012
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary This standard specifies the use of emission portion close to the ear using a handheld wireless communication device specific absorption rate assessment procedures. This section applies to the operating frequency range of 300 MHz ~ 3 GHz arbitrary electrom

GB/T 28446.1-2012: Human exposure to radio frequency fields from hand-held and body-mounted wireless communication devices -- Human models, instrumentation, and procedures -- Part 1: Procedure to determine the specific absorption rate (SAR) for hand-held devices used in clo



---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS17.240 L06 National Standards of People's Republic of China GB/T 28446.1-2012/IEC 62209-1.2005 Hand-held and body-worn use wireless communication devices The body's electromagnetic radiation Human models, instrumentation, and procedures Part 1. close to the ear using a handheld wireless SAR assessment procedures communication device (frequency range 300MHz ~ 3GHz) wirelesscommunicationdevices-Humanmodels, instrumentation, and procedures-Part 1. Proceduretodeterminethespecificabsorptionrate (SAR) (IEC 62209-1.2005, IDT) Issued on. 2012-10-01 2012-06-29 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Table of Contents

Introduction Ⅲ 1 Scope 1 2 Normative references 1 3 Terms and definitions 4 Symbols and abbreviations 8 4.1 8 physical 4.2 constant 8 9 4.3 Acronym 5 Measurement System Specification 9 5.1 General requirements 9 5.2 Model Specifications (shell and liquid) 9 5.3 SAR measurement equipment specifications 12 13 5.4 Scanning System Specifications 5.5 Equipment specifications jig 13 5.6 Measurement of liquid dielectric properties 13 6 SAR assessment procedures 13 6.1 Preparation for measurement 13 17 measuring 6.2 to be executed 6.3 Measurement procedure 18 Post-processing of the measured data 6.4 SAR 19 7 Evaluation of Uncertainty 19 7.1 General considerations 19 7.2 Uncertainty components distribution 21 7.3 Evaluation of Uncertainty 29 8 requires measurement report 31 8.1 Overview 31 8.2 Measurement report content should be recorded in 31 Appendix A (normative) model Specifications 32 Calibration and Uncertainty Appendix B (normative) evaluation of the measuring instrument 37 Processing and Evaluation of Uncertainty Appendix C (normative) after 49 Annex D (normative appendix) SAR measurement system verification system 53 Annex E (informative) inter-laboratory comparison 59 Defined in Appendix F (informative) model coordinate system and the coordinate system of the device under test 61 Annex G (informative) Calibration dipole 62 Appendix H (informative) flat model 64 GB/T 28446.1-2012/IEC 62209-1.2005 Annex I (informative) Recommended head tissue simulant liquid formulations of 66 Appendix J (informative) to evaluate the measurement uncertainty and dielectric properties of the liquid 68 References 76 GB/T 28446.1-2012/IEC 62209-1.2005

Foreword

GB/T 28446 "hand-held and body-worn wireless communication devices use electromagnetic radiation on the human body mannequins, instruments and procedures" points Into two parts. --- Part 1. close to the hand-held wireless communication devices use at the ear of the SAR assessment procedures (frequency range 300MHz ~ 3GHz); --- Part 2. hand-held and body-worn device in human head and evaluate SAR procedures within the body (frequency range of 300MHz ~ 6GHz). This is Part 1 GB/T 28446 in. Rules in this section in accordance with GB/T 1.1-2009 given draft. This section is GB 21288-2007 standard measurement method "local mobile phone electromagnetic radiation exposure limits," the. This section uses the translation method identical with IEC 62209-1.2005 electricity "Handheld and wireless communication devices use a body-worn on the human body Magnetic irradiation Human models, instrumentation, and procedures - Part 1. close to the hand-held wireless communication devices use at the ear of the SAR assessment procedures (frequency Frequency range 300MHz ~ 3GHz) ". This part made the following editorial changes. --- For ease of reading, increase the number of formulas in the text. This part of the National human exposure related to electric, magnetic and electromagnetic field evaluation method Standardization Technical Working Group and centralized. This section drafted by. China Institute of Metrology, Telecommunications Research Institute of the Ministry of Industry and Information Technology, Qingdao Haier Communications Limited. The main drafters of this section. Tengjun Heng, Lubing Song, Qi Dian Yuan, Shen Qing Fei, Song Chunguang. GB/T 28446.1-2012/IEC 62209-1.2005 Hand-held and body-worn use wireless communication devices The body's electromagnetic radiation Human models, instrumentation, and procedures Part 1. close to the ear using a handheld wireless SAR assessment procedures communication device (frequency range 300MHz ~ 3GHz)

1 Scope

This section GB/T 28446 provisions emission portion near the handheld wireless communication device ear of specific absorption rate when using Review Estimation procedures. This section applies to any electromagnetic fields in the frequency range 300MHz ~ 3GHz transmitting devices, such as mobile phones, cordless Telephone. The purpose of this section is to demonstrate how to measure the SAR value of the device under test according to the corresponding limit.

2 Normative references

The following documents for the application of this Act is essential. For dated references, only the dated edition applies to this article Member. For undated references, the latest edition (including any amendments) applies to this document. ISO /IEC Guide.1995 Evaluation and Expression of Uncertainty in Measurement (Guidetotheexpressionofuncertaintyinmeas- urement) ISO /IEC 17025.1999 Testing and Calibration Laboratory Accreditation Standards (Generalrequirementsforthecompetenceof testingandcalibrationlaboratories)

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 Attenuation coefficient attenuationcoeffcicent Mathematics is used to indicate the attenuation factor affected the human head or body tissue resulting from the presence of the source and the particular point. 3.2 Time average absorbed power average (temporal) absorbedpower Time average absorbed power value according to equation (1) is given by. Pavg = 1t2-t1∫ t2 t1 P (t) dt (1) Where. Pavg --- average power in watts (W); --- Initial time T1 of electromagnetic radiation, in seconds (S); Deadline t2 --- electromagnetic radiation, in seconds (s); t2-t1 --- electromagnetic radiation time in seconds (S); P (t) --- instantly absorbed power in watts (W). GB/T 28446.1-2012/IEC 62209-1.2005

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