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GA/T 914-2010 English PDF

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GA/T 914-2010: Forensic medical assessment of the hearing disorders
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PDF similar to GA/T 914-2010


Standard similar to GA/T 914-2010

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Basic data

Standard ID GA/T 914-2010 (GA/T914-2010)
Description (Translated English) Forensic medical assessment of the hearing disorders
Sector / Industry Public Security (Police) Industry Standard (Recommended)
Classification of Chinese Standard A92
Classification of International Standard 13.310
Word Count Estimation 18,190
Date of Issue 2010-11-22
Date of Implementation 2010-12-01
Quoted Standard GB/T 4854.1; GB/T 7341.1-1998; GB/T 7582-2004; GB/T 7583-1987; GB 9706.1-2007; GB/T 15953-1995; GB/T 16403-1996
Regulation (derived from) Industry Standard Record Announcement No
Issuing agency(ies) Ministry of Public Security
Summary This standard specifies the basic principles, requirements, and methods of forensic assessment of hearing impairment. This standard applies to all kinds of hearing impairment and disability rating of the degree of forensic assessment, the other involved in the assessment of hearing impairment can also refer to the use.

GA/T 914-2010: Forensic medical assessment of the hearing disorders

---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.
Forensic medical assessment of the hearing disorders ICS 13.310 A92 People's Republic of China Public Security Industry Standards Forensic assessment hearing impaired Issued on. 2010-11-22 2010-12-01 implementation People's Republic of China Ministry of Public Security

Table of Contents

Preface Ⅰ 1 Scope 1 2 Normative references 1 3 Terms and definitions 4 1 General 5 different types of hearing impairment criteria 2 6 hearing impaired Evaluation Method 5 7 Annex 6 Appendix A (normative) Hearing Laboratory Practice 7 Annex B (informative) hearing impairment and causality judgment Severity Level 14

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. Please note that some of the content of this document may involve patents. Release mechanism of the present document does not assume responsibility for the identification of these patents. This standard by the National Standardization Technical Committee Technical Criminal forensic examination at the Technical Committee (SAC/TC179/SC6) proposed and Centralized. This standard was drafted. the Ministry of Justice of Forensic Science and Technology Institute. The main drafters of this standard. Fan Lihua, Zhuguang You, Yang Xiaoping, late release Lu, Dong Daan, Li Xingqi. Forensic assessment hearing impaired

1 Scope

This standard specifies the basic principles of hearing forensic assessment, requirements and methods. This standard applies to all types of hearing damage and disability grade level forensic evaluation, the other relates to the hearing impaired can be assessed Senate According to use.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 4854.1 acoustic calibration of audiometric equipment - Reference zero - Part 1. the ear headphones pure tone reference equivalent threshold sound pressure levels GB/T 7341.1-1998 Audiometers - Part 1. pure tone audiometer GB/T 7582-2004 Acoustics hearing thresholds and the statistical distribution of their age GB/T 7583-1987 Acoustics pure tone air conduction audiometry hearing protection GB 9706.1-2007 Medical electrical equipment - Part 1. General requirements for safety GB/T 15953-1995 ear acoustic impedance/admittance measuring instrument GB/T 16403-1996 Acoustics pure tone audiometry method air conduction and bone conduction threshold audiometry basic

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 Hearing impairment hearingdisorders Due to injury or disease and other causes of the structural integrity of the auditory system anatomical destruction or dysfunction, hearing loss occurs Or lose. 3.2 Hearing threshold hearingthreshold Under specified conditions, the subject of repeated trials can make the lowest sound pressure level of 50% correctly perceived. 3.3 Pure tone hearing level hearinglevel At a predetermined frequency using a predetermined type of headphones and regulations to use the headset produces a predetermined acoustic coupling cavity or ear simulation SPL pure tone and the corresponding reference equivalent threshold sound pressure level difference. 3.4 Hearing threshold level hearingthresholdlevel At a predetermined frequency using a predetermined type of headphones, listening with a hearing threshold level representation.

4 General

4.1 Assessment Principles 4.1.1 should use clinical audiology and forensic theory and technology, combined with the practice of Forensic Sciences, a comprehensive analysis, comprehensive evaluation.

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