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GB/T 4854.9-2016 English PDF

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US$234.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 4854.9-2016: Acoustics -- Reference zero for the calibration of audiometric equipment -- Part 9: Preferred test conditions for the determination of reference hearing threshold levels
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 4854.9-2016	234	Add to Cart	3 days	Acoustics -- Reference zero for the calibration of audiometric equipment -- Part 9: Preferred test conditions for the determination of reference hearing threshold levels	Valid

Similar standards

GB/T 3222.2 GB/T 3222.1 GB/T 4854.7 GB/T 3241.2 GB/T 4854.3 GB/T 4854.6

Basic data

Standard ID: GB/T 4854.9-2016 (GB/T4854.9-2016)
Description (Translated English): Acoustics -- Reference zero for the calibration of audiometric equipment -- Part 9: Preferred test conditions for the determination of reference hearing threshold levels
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: A59
Classification of International Standard: 17.140
Word Count Estimation: 12,124
Date of Issue: 2016-02-24
Date of Implementation: 2016-09-01
Quoted Standard: GB/T 4854.1-2004; GB/T 7341.1-2010; ISO 389-2; ISO 389-3; ISO 389-6; ISO 389-7; ISO 389-8; ISO 8253-1-2010; ISO 8253-2-2009; ISO/IEC Guide 98-3; IEC 60318-1; IEC 60318-3; IEC 60318-4; IEC 60318-5; IEC 60318-6; IEC 60645-3; IEC 60645-4
Adopted Standard: ISO 389-9-2009, IDT
Regulation (derived from): National Standard Announcement No
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 test conditions for determining a subject hearing threshold for establishing a reference threshold level.

GB/T 4854.9-2016: Acoustics -- Reference zero for the calibration of audiometric equipment -- Part 9: Preferred test conditions for the determination of reference hearing threshold levels

---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.
Acoustics - Reference zero for the calibration of audiometric equipment - Part 9. Preferred test conditions for the determination of reference hearing threshold levels ICS 17.140 A59 National Standards of People's Republic of China Acoustics Calibrate the baseline zero level of the audiometric device Part 9. Determine the preferred test conditions for the baseline hearing threshold Acoustics-Referencezeroforthecalibrationofaudiometricequipment-Part 9. (ISO 389-9..2009, IDT) 2016-02-24 released 2016-09-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Management Committee released

Foreword

GB/T 4854 "Reference zero level for acoustic calibration audiometric equipment" is divided into the following sections. - Part 1. Pressure ear type earphone pure tone reference equivalent threshold sound pressure level; --- acoustic plug-in headphones pure tone reference equivalent threshold sound pressure level; - Part 3. bone tone pure tone reference equivalent threshold level; - Part 4. Reference level for narrowband masking noise; - Part 5. 8 kHz to 16 kHz frequency range pure tone reference equivalent threshold sound pressure level; - Part 6. Baseline hearing thresholds for short time test signals; - Part 7. Benchmark hearing thresholds for free field and diffuse field audiometry; - Part 8. Monocular headphones - Pure tone reference equivalent threshold sound pressure level; Part 9. Determine the preferred test conditions for the baseline hearing threshold. Note. In the development of the second part of the standard, has not yet formed China's multi-part of the standard, the standard number GB/T 16402, in the part of the amendment, Its standard number will be changed to GB/T 4854.2. This part is part 9 of GB/T 4854. This part is drafted in accordance with the rules given in GB/T 1.1-2009. This part uses the translation method equivalent to ISO 389-9..2009 "Acoustics calibration audiometric equipment, the zero level of the ninth part. determine the base Quasi-threshold level of the preferred test conditions. " In this part of the normative reference to the international documents have a consistent correspondence between the following documents. GB/T 4854.3-1998 Acoustics Calibration Benchmarking of audiometric equipment Part 3. Bone shock absorber pure tone reference equivalent threshold Force level (eqvISO 389-3..1994); GB/T 4854.6-2014 Baseline zero level of acoustic calibration audiometric equipment Part 6. Benchmark for short-range test signals Listening threshold (ISO 389-6..2007, IDT); GB/T 4854.7-2008 Baseline zero level of acoustic calibration audiometric equipment Part 7. Free field and diffusion field audiometry Baseline hearing threshold (ISO 389-7..2005, IDT); GB/T 4854.8-2007 Acoustics Calibration Benchmarks for audiometric equipment - Part 8. Monocular headphones, pure tone, etc. Efficiency threshold pressure level (ISO 389-8..2004, IDT); Hearing meters - Part 4. Equipment for extending high - frequency audiometry (idt, IEC 60645-4..1994); GB/T 7341.4-1998; Acoustics - Methods of audiometry - Part 2. Sound field audiometry with pure tone and narrowband test signals (eqv, ISO 8253-2..1992); Acoustic plug - in headphones - Pure tone reference equivalent threshold sound pressure level (eqv, ISO 389-2..1994); GB/T 16402-1996; Acoustics - Methods of audiometry - Part 1. Pure tone and bone conduction thresholds - Basic audiometry (eqv, ISO 8253-1. 1989). This part is presented by the Chinese Academy of Sciences. This section is under the jurisdiction of the National Acoustics Standardization Technical Committee (SAC/TC17). This part of the drafting unit. People's Liberation Army General Hospital Institute of Otolaryngology, Chinese Academy of Sciences Institute of Acoustics, Air Force Aviation Medical Research Institute. The main drafters of this part. Yu Ning, Chen Hongwen, Wu Wenming, Yu Liming, Ji Fei, Yang Jun, Li Xiaodong, Lu Yadong, Yu Wenbin. Acoustics Calibrate the baseline zero level of the audiometric device Part 9. Determine the preferred test conditions for the baseline hearing threshold

1 Scope

This part of GB/T 4854 specifies the test conditions for determining the subject's hearing threshold for establishing the baseline threshold level.

2 normative reference documents

The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article Pieces. For undated references, the latest edition (including all modifications) applies to this document. GB/T 4854.1-2004 Baseline zero level for acoustics calibration audiometric equipment - Part 1. Pure tone reference equivalent threshold for ear plugs Sound pressure level (ISO 389-1..1998, IDT) GB/T 7341.1-2010 Electroacoustic audiometry equipment - Part 1. Pure tone audiometer (IEC 60645-1..2001, IDT) ISO 389-2 Acoustics Calibration Benchmarking of audiometric equipment Part 2. Plug-in headphones Pure tone reference equivalent threshold sound pressure level (Acoustics-Referencezer oforthecalibrationofaudiometricequipment-Part 2. Referenceequivalent thresholdsoundpressurelevelsforpuretonesandinsertearphones) ISO 389-3 Acoustics Calibration Benchmarking of audiometric equipment Part 3. Bone shock absorber pure tone reference equivalent threshold level (Acoustics-Referencezer oforthecalibration ofaudiometricequipment-Part 3. Reference equivalentthresholdforcelevelsforpuretonesandbonevibrators) ISO 389-6 Acoustics Calibration Benchmarks for audiometric equipment - Part 6. Baseline hearing thresholds for short time test signals Lt;/RTI & ofhearingfortestsignalsofshortduration) ISO 389-7 Acoustics Calibration Benchmarks for audiometric equipment Part 7. Benchmark thresholds for free field and diffuse field audiometry (Acoustics-Referencezer oforthecalibrationofaudiometricequipment-Part 7. Referencethreshold ofhearingunderfree-fieldanddiffuse-fieldlisteningconditions) ISO 389-8 Acoustics Calibration Benchmarks for audiometric equipment Part 8. Earmuff headphones Pure tone reference equivalent Threshold sound pressure level (Acoustics-Referencezer oforthe calibration ofaudiometric equipment-Part 8. Reference equivalentthresholdsoundpressurelevelsforpuretonesandcircumauralearphones) ISO 8253-1..2010 Acoustics - Part 1. Pure tone and bone conduction thresholds Basic audiometry (Acoustics- Audiometrictestmethods-Part 1. Pure-toneair andboneconductionaudiometry) ISO 8253-2..2009 Acoustics - Methods of audiometry - Part 2. Sound field audiometry with pure tone and narrowband test signals (Acoustics- Audiometrictestmethods-Part 2. Soundfieldaudiometrywithpure-toneandnarrow-bandtestsig- nals ISO /IEC Guide 98-3 Measurement Uncertainty Part 3. Measurement Uncertainty Expression Guidelines [Uncertaintyofmeasure- ment-Part 3. Guidetotheexpessionofuncertaintyinmeasurement (GUM..1995)] IEC 60318-1 Electroacoustic head and ear simulator - Part 1. Alert simulator for calibrating headphones and earphones (Electroacoustics-Simulatorsofhumanheadandear-Part 1. Earsimulatorforthecalibrationofsu- pra-auralandcircumauralearphones) IEC 60318-3 Electroacoustic head and ear simulator Part 3. Calibration of the audible coupler for headphones, ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 4854.9-2016_English be delivered?

Answer: Upon your order, we will start to translate GB/T 4854.9-2016_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 4854.9-2016_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 4854.9-2016_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.