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Technical specification for forensic clinical identification of hearing dysfunction
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Basic data
| Standard ID | GB/T 43640-2024 (GB/T43640-2024) |
| Description (Translated English) | Technical specification for forensic clinical identification of hearing dysfunction |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | C06 |
| Classification of International Standard | 07.140 |
| Word Count Estimation | 22,256 |
| Date of Issue | 2024-03-15 |
| Date of Implementation | 2024-07-01 |
| Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration |
GB/T 43640-2024: Technical specification for forensic clinical identification of hearing dysfunction
---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.
ICS 07.140
CCSC06
National Standards of People's Republic of China
Technical specification for forensic clinical identification of hearing impairment
Released on 2024-03-15
2024-07-01 Implementation
State Administration for Market Regulation
The National Standardization Administration issued
Table of Contents
Preface III
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 Abbreviations 1
5 Identification Principles 2
5.1 Basic Principles 2
5.2 Principles of result evaluation 2
6 Identification Requirements 2
6.1 Identification timing 2
6.2 Identification Step 2
7 Inspection and evaluation methods 3
7.1 Ear examination 3
7.2 Auditory function test 3
7.3 Assessment of the degree of hearing impairment 3
Appendix A (Normative) Auditory Function Testing Laboratory Specifications 5
A.1 Environmental Requirements 5
A.2 Instrument requirements 5
A.3 Detection Method 6
Appendix B (Normative) Common injuries and diseases related to the identification of auditory dysfunction 12
B.1 Traumatic hearing impairment12
B.2 Some ear diseases related to hearing impairment14
Reference 17
Foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents"
Drafting.
Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.
This document is proposed and coordinated by the Ministry of Justice of the People's Republic of China.
This document was drafted by. Forensic Science Research Institute, Sichuan University, Eye, Ear, Nose and Throat Hospital Affiliated to Fudan University, and PLA General Hospital.
The main drafters of this document are. Yang Xiaoping, Chen Fang, Liu Xia, Fan Lihua, Deng Zhenhua, Li Huawei, Ji Fei, and Wang Yunfeng.
Technical specification for forensic clinical identification of hearing impairment
1 Scope
This document establishes the principles of forensic clinical evaluation of hearing impairment, specifies the requirements for evaluation, and describes the procedures for testing and evaluating hearing function.
specific method.
This document is applicable to forensic clinical identification involving auditory dysfunction in various human injury cases.
2 Normative references
The contents of the following documents constitute the essential clauses of this document through normative references in this document.
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document.
GB/T 7582 Statistical distribution of the relationship between acoustic hearing threshold and age
GB/T 16296.1 Acoustic audiometry methods Part 1.Pure tone air conduction and bone conduction audiometry
SF/T 0112 Implementation Specification for Forensic Clinical Imaging Examination
3 Terms and definitions
The terms and definitions defined in GB/T 16296.1 and the following apply to this document.
3.1
hearing threshold
The lowest sound pressure level or vibration force level at which a predetermined percentage of the correct perceptual response can be achieved in repeated tests under specified conditions.
Note. The predetermined percentage is usually taken as 50%.
3.2
At the specified frequency, using the specified type of transducer, in the specified wearing method, the transducer is placed in the specified ear simulator or force coupling
The sound pressure level or vibration force level generated in the instrument is deducted from the corresponding reference equivalent threshold sound pressure level or reference equivalent threshold vibration force level.
3.3
At a specified frequency, for a specified type of headphones, the hearing level is used to express the hearing threshold of a given ear at this frequency.
3.4
hearing dysfunctionhearingdysfunction
Due to various reasons such as injury or disease, the anatomical integrity of the auditory system is destroyed, resulting in hearing loss or loss.
3.5
Use the theories and techniques of forensic clinical medicine, otology, and audiology to conduct ear examinations and test and evaluate auditory functions.
4 Abbreviations
The following abbreviations apply to this document.
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