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JJF 1592-2016: Program of Pattern Evaluation of Pure-tone Audiometers
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JJF 1592-2016	English	1019	Add to Cart	6 days [Need to translate]	Program of Pattern Evaluation of Pure-tone Audiometers

JJF 1592-2016: Program of Pattern Evaluation of Pure-tone Audiometers

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Program of Pattern Evaluation of Pure-tone Audiometers National Metrological Technical Code of the People's Republic of China Pure tone audiometer type evaluation outline 2016-11-25 release 2017-02-25 Implementation State Administration of Quality Supervision, Inspection and Quarantine issued Pure tone audiometer type evaluation outline Instead of JJG388-2001 Type evaluation part Coordinate unit. National Acoustics Metrology Technical Committee Drafting unit. China Institute of Metrology Zhejiang Institute of Metrology Jilin Institute of Metrology This specification entrusts the National Acoustics Metrology Technical Committee to explain The drafters of this specification. Zhong Bo (China Institute of Metrology) Qiu Jianmin (Zhejiang Institute of Metrology) Yan Youyu (Jilin Institute of Metrology) Zhang hongyu (Zhejiang Institute of Metrology) Xu Huan (China Institute of Metrology) Zheng Yunshan (China Institute of Metrology) Sang Shuaijun (Zhejiang Institute of Metrology)

table of Contents

Introduction (Ⅲ) 1 Scope (1) 2 References (1) 3 Overview (1) 4 legal management requirements (2) 4.1 Unit of measurement (2) 4.2 Accuracy class (2) 4.3 Metrology and marking of metrological instruments (2) 4.4 Seal structure (2) 4.5 Key components and materials (2) 5 Metering requirements (2) 5.1 Frequency and hearing level range (2) 5.2 Frequency Accuracy (3) 5.3 Total Harmonic Distortion (3) 5.4 Frequency change rate (3) 5.5 Reference Equivalent Hearing Sound Pressure Level and Reference Equivalent Listening Threshold Level Accuracy (3) 5.6 Hearing level controller accuracy (4) 5.7 pure tone switch (4) 5.8 Masking noise level range (5) 5.9 Masking noise spectrum (5) 5.10 Masking noise level accuracy (5) 5.11 Masking Noise Level Controller Accuracy (5) 5.12 Air lead earphone (5) 5.13 Resonator (5) 5.14 Responder Response System (5) 5.15 Warm-up time (5) 5.16 unwanted sound (5) 5.17 External signal source (6) 6 General technical requirements (6) 6.1 Appearance and structure (6) 6.2 Functional requirements (6) 6.3 Electrical safety requirements (8) 6.4 Climate and Environmental Requirements (9) 6.5 Mechanical Environmental Requirements (9) 6.6 Power Adaptability Requirements (9) 6.7 Electromagnetic compatibility requirements (9) 7 type evaluation items list (10) 8 the number of samples provided and the use of the prototype (11) 9 Test methods and conditions for test items and data processing and eligibility criteria (11) 9.1 Environmental conditions for testing (11) 9.2 Test methods (12) 9.3 Electrical safety test (19) 9.4 Climate and Environmental Tests (21) 9.5 Mechanical Environmental Testing (21) 9.6 Power Adaptability Test (22) 9.7 Electromagnetic compatibility test (23) The principle of determining the results of the 10 type evaluation (24) 11 Metering devices and equipment for test items (24) Appendix A pure tone hearing meter type evaluation of the original record format (26)

Introduction

JJF 1002-2010 "Rules for the preparation of national metrological verification procedures", JJF 1001-2011 "General measurement terms and Definition "and JJF 1059.1-2012" measurement uncertainty assessment and representation "together constitute the basis for the development of this specification Series specification. This specification in accordance with GB/T 7341.1-2010 "electro-acoustic audiometry equipment Part 1. pure tone hearing meter" Content requirements compiled from the same time referred to the JJG388-2012 "audio-visual equipment pure tone hearing meter", to pure The performance of the audiometer makes an objective, comprehensive and effective evaluation. The structure of this specification is arranged according to JJF 1016-2014 "Guidelines for the preparation of the outline of measurement instruments" The chapters are in accordance with JJF 1015-2014 "General Specifications for Metrological Apparatus Evaluation" and JJF 1002-2010 " Quantity verification procedures for the preparation of rules "provisions of the preparation. The release of this specification will replace the JJG388-2001 "pure tone audiometer" in the type of evaluation of the content. Pure tone audiometer type evaluation outline

1 Scope

This specification applies to the classification of the class code for the 28120200 pure tone audiometer type evaluation.

2 reference file

JJG38825 listening device pure tone hearing meter Terminology and definitions of acoustical metrology nouns JJF 1034-2005 GB 4824 Industrial, scientific and medical (ISM) RF equipment Disturbance characteristics Limits and methods of measurement Electromagnetism audiometry equipment - Part 1. Pure tone audiometer GB/T 7341.1-2010 Medical electrical equipment - Part 1. General requirements for safety GB 9706.1-2007 Environmental requirements and test methods for medical appliances GB/T 14710-2009 Electromagnetic compatibility - Testing and measurement techniques - Electrostatic discharge immunity test GB/T 17626.2-2006 GB/T 17626.3-2006 Electromagnetic compatibility test and measurement technology Radio frequency electromagnetic radiation immunity test GB/T 17626.4-2008 Electromagnetic compatibility test and measurement techniques Electrical fast transient burst immunity test GB/T 17626.5-2008 Electromagnetic compatibility test and measurement technology Surge (impact) immunity test Electromagnetic compatibility (EMC) - Testing and measurement techniques - Power frequency magnetic field immunity test GB/T 17626.8-2006 GB/T 17626.11-2008 Electromagnetic compatibility test and measurement techniques Voltage sags, short interruptions and voltages Variant immunity test The terms of the above documents are the terms of this specification by reference to this specification. Any reference to the date of the text , All subsequent amendments (excluding corrigenda) or modified versions are not applicable to this specification, Period of the reference document, the latest version of which applies to this specification.

3 Overview

A pure tone audiometer is a measuring instrument used to determine the human ear hearing threshold and provide a basis for diagnosing auditory disease. widely For hospitals, rehabilitation centers, deaf schools, mining, military and disease prevention and control centers and other institutions. According to the lowest strong System of functional requirements, pure tone hearing score is divided into four different types. 1 type --- for advanced clinical diagnosis/research; 2 type --- for clinical diagnosis; 3 type --- for basic diagnosis; 4 type --- for screening/monitoring. These four types And their application of the scope of the design. Pure tone hearing meter composition and basic working principle shown in Figure 1. Figure 1 pure tone hearing meter composition and working principle ...