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GB/T 4854.5-2008: Acoustics -- Reference zero for the calibration of audiometric equipment -- Part 5: Reference equivalent threshold sound pressure levels for pure tone in the frequency range 8 kHz to 16 kHz
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| GB/T 4854.5-2008 | English | 194 |
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Acoustics -- Reference zero for the calibration of audiometric equipment -- Part 5: Reference equivalent threshold sound pressure levels for pure tone in the frequency range 8 kHz to 16 kHz
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GB/T 4854.5-2008
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Basic data | Standard ID | GB/T 4854.5-2008 (GB/T4854.5-2008) | | Description (Translated English) | Acoustics -- Reference zero for the calibration of audiometric equipment -- Part 5: Reference equivalent threshold sound pressure levels for pure tone in the frequency range 8 kHz to 16 kHz | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | A59 | | Classification of International Standard | 17.140 | | Word Count Estimation | 10,157 | | Date of Issue | 2008-07-02 | | Date of Implementation | 2009-02-01 | | Adopted Standard | ISO 389-5-2006, IDT | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 11 of 2008 (No. 124 overall) | | 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 8kHz ~ 16kHz frequency range of pure tone reference equivalent threshold sound pressure levels (RETSPLs), a specific model for air conduction headset audiometer calibration. | GB/T 4854.5-2008: Acoustics -- Reference zero for the calibration of audiometric equipment -- Part 5: Reference equivalent threshold sound pressure levels for pure tone in the frequency range 8 kHz to 16 kHz
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Acoustics Reference zero for the calibration of audiometric equipment Part 5. Reference equivalent threshold sound pressure levels for pure tone in the frequency range 8 kHz to 16 kHz
ICS 17.140
A59
National Standards of People's Republic of China
GB/T 4854.5-2008/ISO 389-5.2006
Acoustics - Reference zero for the calibration of audiometric equipment
Part 5. 8 k H z ~ 16 k H z frequency
Range pure tone reference equivalent threshold sound pressure levels
(ISO 389-5.2006, IDT)
Posted 2008-07-02
2009-02-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
GB/T 4854 "acoustic calibration of audiometric equipment - Reference zero" includes eight parts.
--- GB/T 4854.1 acoustic calibration of audiometric equipment - Reference zero for Part 1. the ear headphones pure tone reference equivalent threshold sound
Pressure level;
--- GB/T 16402 Acoustics pure tones and insert earphones Reference equivalent threshold sound pressure levels;
--- GB/T 4854.3 acoustic calibration of audiometric equipment - Reference zero - Part 3. pure tones and bone vibrators Reference equivalent threshold force levels;
--- GB/T 4854.4 Acoustics - Reference zero for the calibration of audiometric equipment - Part 4. Reference levels for narrow-band masking noise;
--- GB/T 4854.5 acoustic calibration of audiometric equipment - Reference zero - Part 5. 8kHz ~ 16kHz frequency range of pure tones
Reference equivalent threshold sound pressure levels;
--- GB/T 4854.6 Acoustics - Reference zero for the calibration of audiometric equipment - Part 6. short test drive signal reference hearing threshold level;
--- GB/T 4854.7 Section 7 Reference zero acoustic calibrator audiometric equipment. free-field and diffuse - field listening base
Quasi hearing threshold;
--- GB/T 4854.8 acoustic calibration of audiometric equipment - Reference zero - Part 8. Headphones pure tone reference equivalent threshold sound
Pressure level.
Note. In developing this standard Part 2, our country has not yet formed a series of standards, the standard number is GB/T 16402, in the part of the revision of its
Standard will be changed to GB/T 4854.2.
This section GB/T 54854 Part of.
This part identical with ISO 389-5.2006 "Acoustics --- calibration of audiometric equipment - Reference zero --- Part 5. 8kHz ~
16kHz frequency range pure tone reference equivalent threshold sound pressure levels "(in English).
This section is equivalent to using international standards made editorial changes.
Appendix A of this section and Appendix B is an informative annex.
This section proposed by the Chinese Academy of Sciences.
The acoustics in part by the National Standardization Technical Committee (SAC/TC17) centralized.
This section drafted by. Institute of Otolaryngology, Chinese PLA General Hospital, Chinese Academy of Sciences Institute of Acoustics.
The main drafters of this section. Chen Hongwen, at dawn, Wu Wenming, Dai Genhua, Zhang Yu Wei.
This section first release.
GB/T 4854.5-2008/ISO 389-5.2006
Introduction
National Standard GB extended high frequency audiometry device/T 7341.4 has been promulgated. As the high-frequency range extending calibration audiometry using headphones
Adapter with IEC 60318-1 ear simulator used together to form the acoustic coupler calibration middle-ear headphones. The adapter has now become
International Standard IEC 60318-2 (will be included in the revised IEC 60318-1). This section describes specific model Headphones
And insert earphones reference equivalent threshold sound pressure levels, can be used for these models have been equipped with headphones calibrated audiometer, hearing threshold level in our country
Expression measurements values \u200b\u200bconsistent with internationally.
GB/T 4854.5-2008/ISO 389-5.2006
Acoustics - Reference zero for the calibration of audiometric equipment
Part 5. 8 k H z ~ 16 k H z frequency
Range pure tone reference equivalent threshold sound pressure levels
1 Scope
This section provides 8kHz ~ 16kHz frequency range pure tone reference equivalent threshold sound pressure levels (RETSPLs), for a particular type ear
Air conduction audiometer calibration machine.
NOTE. it gives a description and experimental conditions to determine the reference equivalent threshold sound pressure levels in Appendix A and reference.
2 Normative references
The following documents contain provisions which, through reference to GB/T 4854 to the present, constitute provisions of this section. For dated reference documents
Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section
Parties to research agreement to use the latest versions of these documents. For undated references, the latest version applies to
This section.
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 4854.1-2004, ISO 389-1.1998, IDT)
GB/T 16402 Acoustics pure tones and insert earphones Reference equivalent threshold sound pressure levels (GB/T 16402-1996, eqv ISO 389-2.
1994)
IEC 60318-11) electro-acoustics simulator head and ear - Part 1. Align the ear headphones ear simulator
IEC 60318-2.19982) electro-acoustics simulator head and ear - Part 2. Calibration extended high-frequency audiometry intermediate range headphones
Acoustic coupler
IEC 607113) and insert earphones measurement clogged ear simulator
3 Terms and Definitions
This part of GB/T 4854.1 and IEC 60318-1 terms and definitions in.
4. Technical Requirements
Reference equivalent threshold sound pressure levels (RETSPLs) headset model and calibration headset with an ear simulator and adapter related. Table 1 to
Out (ETYMOTICRESEARCHER-2 with ER1-14A type earplugs) and close to two different types of headphones [insert earphones
Predetermined value closed earphones (SENNHEISERHDA200)] of.
Headband SENNHEISERHDA200 type earphones clamping force should be (10.0 ± 1.0) N. When measuring headband clamping force, two ears
The distance between the machine should be 145mm; headband center (top) from the midpoint of the center of two headphones to be adjusted to 130mm.
Ear ETYMOTICRESEARCHER-2 plug-in headset, should be deep into a subject's ear canal, so earplugs
The outer end of the ear canal flush.
1) is being revised.
2) will be canceled, its content is included in the revised IEC 60318-1.
3) will become the IEC 60318-4.
GB/T 4854.5-2008/ISO 389-5.2006
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