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JJG 388-2012 English PDF

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Upon your order, we will start to translate JJG 388-2012_English as soon as possible, and keep you informed of the progress. The lead time is typically 3 ~ 5 working days. The lengthier the document the longer the lead time.

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Q: Should I purchase the latest version JJG 388-2012?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version JJG 388-2012 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.

US$699.00 · In stock
Delivery: <= 5 days. True-PDF full-copy in English will be manually translated and delivered via email.
JJG 388-2012: Verification Regulation of Audiological Equipment. Pure-tone Audiometers
Status: Valid

JJG 388: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJG 388-2012	699	Add to Cart	5 days	Verification Regulation of Audiological Equipment. Pure-tone Audiometers	Valid
JJG 388-2001	1229	Add to Cart	7 days	Verification regulation of pure-tone audiometers	Valid
JJG 388-1985	399	Add to Cart	3 days	(Trial audiometer test procedures)	Obsolete

Similar standards

GB/T 3222.2 GB/T 3222.1 JJG 188 JJG 921 JJG 778 JJG 185

Basic data

Standard ID: JJG 388-2012 (JJG388-2012)
Description (Translated English): Verification Regulation of Audiological Equipment. Pure-tone Audiometers
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A59
Classification of International Standard: 17.040
Word Count Estimation: 30,310
Older Standard (superseded by this standard): JJG 388-2001
Quoted Standard: JJG 389-2003; JJG 449-2001; JJG 798-1992; JJF 1001-2011; JJF 1034-2005; GB 3102.7-1993; GB/T 3241-2010; GB/T 4854.1-2004; GB/T 4854.3-1998; GB/T 4854.4-1999; GB/T 7341.1-2010; GB/T 15951-1995; GB/T 16296-1996; GB/T 16402-1996; GB/T 25498.1-2010; GB/T 2549
Regulation (derived from): State Administration of Quality Supervision, Inspection and Quarantine Notice 2012 No. 63;
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine
Summary: This standard applies to pure tone audiometer initial verification, testing and use of follow-up checks.

JJG 388-2012: Verification Regulation of Audiological Equipment. Pure-tone Audiometers

---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.
Verification Regulation of Audiological Equipment.Pure-tone Audiometers State verification procedures People's Republic of China Pure tone audiometry equipment audiometer Issued on. 2012-04-17 2012-10-17 implementation The State Administration of Quality Supervision, Inspection and Quarantine released Pure tone audiometry equipment audiometer Verification Regulation Replacing JJG 388-2001 Test section Focal point. the National Committee of the acoustic measurement technology Drafting unit. Hubei Provincial Institute of Measurement and Testing Hubei Provincial Quality and Technical Supervision China Institute of Metrology Beijing Institute of Metrology The measurement procedure commissioned the National Technical Committee is responsible for interpreting acoustics The drafters of the regulations. Chen Yanming (Hubei Institute of Measurement and Testing) Yao Qiuping (Hubei Institute of Measurement and Testing) When the root of fire (Hubei Provincial Quality and Technical Supervision) Zhong Bo (China Institute of Metrology) Wei (Beijing Institute of Metrology)

Introduction (Ⅱ) 1 Scope (1) 2. References (1) 3 terminology and units of measurement (2) 4 Overview (2) 5 metering performance requirements (2) 5.1 frequency and hearing level range (2) 5.2 Frequency accuracy (3) 5.3 Total harmonic distortion (3) Frequency change rate 5.4 (3) 5.5 Reference equivalent threshold sound pressure levels and hearing Reference equivalent threshold force levels for accuracy (3) 5.6 Hearing level control accuracy (3) 5.7 masking noise level range (3) 5.8 masker spectrum (3) 5.9 masking sound level accuracy (3) 5.10 masking sound level controller accuracy (3) 5.11 air conduction headphones (3) 5.12 bone vibrators (4) 5.13 undesired sound (4) 6 General Requirements (4) 6.1 nameplate, signs and instructions (4) 6.2 Basic functional requirements (5) 6.3 Transfer Language (6) between the subject and the operator 6.4 Warm-up time (6) 6.5 marks (6) 7 control of measuring instruments (6) 7.1 test conditions (6) 7.2 Verification Project (6) 7.3 test items and test methods (7) 7.4 test results processing (10) 7.5 test cycle (11) Appendix A hearing threshold reference equivalent sound pressure level (zero air conduction hearing level) (12) Appendix B Reference equivalent threshold force levels (bone conduction hearing zero-order) (15) Appendix C narrowband masking noise reference level (16) Appendix D calibration certificate and test results notice (within the page) format (17) Test results Appendix E Uncertainty Evaluation Examples (19)

Introduction

Prepared on the basis of this procedure is that JJF1002-2010 "national verification procedures to write the rules." According to the national standard Quasi GB/T 7341.1-2010 "electro-acoustics audiometric equipment - Part 1. pure tone audiometer" (equivalent to using IEC 60645-1.2001 Electroacoustics-Audiologicalequipment-Part 1. Pure-toneaudi- ometers), in conjunction with the current diagnosis, hearing protection and rehabilitation for the purpose of audiometric equipment expanded rapidly, the Audiometer as an independent functional unit takes into account the performance, to meet the evolving pure tone audiometer was developed, in the main With international standards, the basic equivalent national standards on technical indicators. This procedure is based on GB/T 7341.1-2010 "electro-acoustics audiometric equipment - Part 1. pure tone audiometer" as Basis for JJG 388-2001 "pure tone audiometer" be revised. Compared with JJG 388-2001, the main technical Changes are as follows. --- Original procedure split into test procedures and type of evaluation outline technical specifications; --- The artificial ear acoustic coupler unified with the ear simulator to describe; --- In accordance with GB/T 7341.1-2010 standards and procedures relevant to the original terms have been adjusted, such as The bone conduction headset to bone vibration, simulation mastoid to force coupler; --- Stressing that this procedure does not involve the type of content evaluation, and delete the original statutes pure tone switches to safety Seek, humidity and temperature adaptability, the power supply voltage, electrostatic charge electromagnetic interference and other issues involving the external signal input unit type Evaluation of technical content and style "type evaluation test program"; type evaluation test program as a national technical regulations Fan develop additional; --- Revising internal calibration certificate/page format test results according to JJF1002-2010 notice requirements. Previous version JJG 388-2001 regulations on the release of. --- JJG 388-1985 "audiometer" (Trial). Pure tone audiometry equipment audiometer Verification Regulation

1 Scope

The order applies to pure tone audiometer initial verification, subsequent verification and the use of checks. 2. References This procedure references the following documents. JJG 389-2003 artificial ear JJG 449-2001 octave and 1/3 octave filters JJG 798-1992 standard simulation mastoid JJF1001-2011 common measurement terms and definitions JJF1034-2005 acoustic measurement terminology and definitions GB 3102.7-1993 Quantities and units of acoustics GB/T 3241-2010 electro-acoustics octave and fractional octave filters GB/T 4854.1-2004 Acoustics calibration of audiometric equipment - Part 1 - Reference zero pressure pure ear headphones Reference equivalent threshold sound pressure level GB/T 4854.3-1998 Acoustics calibration of audiometric equipment - Part 3 - Reference zero for pure tones and bone vibrators group Quasi-equivalent threshold force levels GB/T 4854.4-1999 Acoustics calibration of audiometric equipment - Reference zero narrowband masking noise - Part 4 The reference level GB/T 7341.1-2010 electro-acoustics audiometric equipment - Part 1. pure tone audiometer GB/T 15951-1995 force measurements on bone vibrators coupler GB/T 16296-1996 Acoustics - Audiometric test methods - Part 2 with pure tone and narrow-band test signals sound field Audiometry GB/T 16402-1996 Acoustics pure tones and insert earphones Reference equivalent threshold sound pressure levels GB/T 25498.1-2010 electro-acoustics simulator head and ear simulator - Part 1. Pressure calibration ear type Headset with the ear simulator GB/T 25498.3-2010 electro-acoustics simulator head and ear simulator - Part 3. Calibration pressure ear type Audiometry headphones acoustic coupler IEC 60318-4.2010 electric acoustic simulator of human head and ear - Part 4. earplugs coupled to the human ear Headset with ear plugs measuring simulator (Electroacoustics-Simulatorsofhumanheadandear-Part 4. Occluded-earsimulatorforthemeasurementofearphonescoupledtotheearbymeansof earinserts) IEC 60318-5.2006 electric acoustic simulator of human head and ear - Part 5. in-ear hearing aids and headsets Measuring 2cm3 coupler (Electroacoustics-Simulatorsofhumanheadandear-Part 5. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of JJG 388-2012_English be delivered?

Answer: Upon your order, we will start to translate JJG 388-2012_English as soon as possible, and keep you informed of the progress. The lead time is typically 3 ~ 5 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of JJG 388-2012_English with my colleagues?

Answer: Yes. The purchased PDF of JJG 388-2012_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.

Question 5: Should I purchase the latest version JJG 388-2012?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version JJG 388-2012 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.