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GB/T 25102.1-2010 English PDF

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US$114.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 25102.1-2010: Electroacoustics -- Hearing aids -- Part 1: Hearing aids with induction pick-up coil input
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 25102.1-2010	114	Add to Cart	3 days	Electroacoustics -- Hearing aids -- Part 1: Hearing aids with induction pick-up coil input	Valid

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Basic data

Standard ID: GB/T 25102.1-2010 (GB/T25102.1-2010)
Description (Translated English): Electroacoustics -- Hearing aids -- Part 1: Hearing aids with induction pick-up coil input
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: M72
Classification of International Standard: 17.140.50
Word Count Estimation: 6,636
Date of Issue: 2010-09-02
Date of Implementation: 2011-04-01
Older Standard (superseded by this standard): GB/T 6658-1986
Quoted Standard: GB/T 11453-1989; GB/T 25102.100-2010; GB/T 25102.4-2010; IEC 60711-1981
Adopted Standard: IEC 60118-1-1999, IDT
Regulation (derived from): Announcement of Newly Approved National Standards No. 4 of 2010 (total 159)
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 use of a magnetic field in the audio induction telecoil -equipped hearing aids electro-acoustic performance measurement methods, induction telecoil feature is the use of a room measuring analog loop working condition, note: the magnetic field induction on the phone telecoil characteristics and use of this part of the test results may differ mattress,

GB/T 25102.1-2010: Electroacoustics -- Hearing aids -- Part 1: Hearing aids with induction pick-up coil input

---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.
Electroacoustics Hearing aids Part 1. Hearing aids with induction pick-up coil input ICS 17.140.50 M72 National Standards of People's Republic of China Replacing GB/T 6658-1986 Electric acoustic hearing aids Part 1. an induction coil pickup Input hearing aids Part 1. Hearingaidswithinductionpick-upcoilinput (IEC 60118-1.1999, Hearingaids-Part 1. Hearingaidswithinduction pick-upcoilinput, IDT) Issued on. 2010-09-02 2011-04-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

GB/T 25102 "electro-acoustics hearing" is divided into 14 parts. --- Part 0. Measurement of electroacoustical characteristics; --- Part 1. an induction pick-up coil input hearing aids; --- Part 2. AGC circuit having a hearing aid; --- Part 3. not entirely worn on the listener hearing aids; --- Part 4. Magnetic field strength in the hearing aid induction loop systems; --- Part 5. papillary insert earphone connector; --- Part 6. hearing input characteristics of the circuit; --- Part 7. When the hearing aid product delivery performance measurement quality inspection; --- Part 8. Methods for measuring performance of hearing aids under simulated actual working conditions; --- Part 9. Methods of measurement characteristics of hearing aids with bone vibrator output; --- Part 11. Symbols and marks of hearing aids and related equipment; --- Part 12. Dimensions of electrical connector system; --- Part 13. Electromagnetic compatibility (EMC); --- Part 14. Specification of a digital interface. This is Part 1 GB/T 25102 of. This section identical with IEC 60118-1.1999 "electroacoustic aids - Part 1. an induction hearing aid telecoil input Device "(in English). This Part replaces GB/T 6658-1986 "with a measurement method of electro-acoustic characteristics of hearing aids with induction pick - up coil input." Compared with the 1986 version, this section have a greater change, in addition to the original complements and editorial changes, but also increased the number of New technical content, to further strengthen the scientific and practical. The main changes are as follows. --- This section according to GB/T 1.1-2000 version made editorial changes; --- Increasing the content of terms and definitions (Excerpts 3.4,3.5,3.6); --- Added a chapter test conditions (Chapter 4 of this edition); --- Increasing the test project (Excerpts 5.5,5.6,5.7,5.8); --- Added a chapter equivalent sound input measurement requirements (Chapter 6 of this edition). This part is proposed by the Ministry of Industry and Information Technology of the People's Republic of China. This part of the National Standardization Technical Committee electro-acoustics (SAC/TC23). This section is responsible for drafting. Tianjin hearing plant, Institute of Otolaryngology, Chinese PLA General Hospital. The main drafters of this section. Tanghui De, Chen Hongwen, MO Qingrong, Han Ying root at dawn, Hebei fly. This section was first released in 1986, this is the first revision. Electric acoustic hearing aids Part 1. an induction coil pickup Input hearing aids

1 Scope

This section provides electro-acoustic performance with sensors measuring method used in the audio field telecoil in a hearing aid. Inductive pickup line Circle feature is the use of an analog circuit work in the state room measurements. NOTE. induction telecoil intrinsic magnetic field on the phone with the results obtained in this section measured may vary.

2 Normative references

The following documents contain provisions which, through reference GB/T 25102 in this section constitute provisions of this section. For dated references, All subsequent amendments (excluding corrections) or revisions do not apply to this section, however, encourage an agreement under this section Parties to study the latest versions of these documents. For undated reference documents, the latest versions apply to this section. GB/T 11453-1989 analog hearing aid performance under actual operating conditions of the measuring method (eqv IEC 60118-8. 1983) GB/T 25102.100-2010 electric acoustic hearing aids - Part 0. Measurement of electroacoustical characteristics (IEC 60118-0. 1983, IDT) GB/T 25102.4-2010 electroacoustic aids - Part 4. hearing aid induction loop system the magnetic field strength (IEC 60118-4. 2006, IDT) IEC 60711. 1981 measured using ear headset with a headset connected by plugging the ear simulator

3 Terms and Definitions

The following terms and definitions apply to this section. 3.1 Test points testpoint A position of a predetermined magnetic field strength. 3.2 Test space testspace Including test points, including a hearing test when put spatial location. 3.3 Frequency response frequencyresponse Under specified test conditions, the measured sound pressure level in the ear simulator can be expressed as a function of frequency. 3.4 Magneto - acoustic sensitivity magneto-acousticalsensitivity Point at a predetermined frequency and a substantially linear input/output conditions, the sound of hearing aids in the ear simulator pressure (Pa) and magnetic test point Field intensity (mA/m) ratio. 3.5 Magnetic - Sound sensitivity level magneto-acousticalsensitivitylevel; MASL Magneto - acoustic sensitivity with the reference sensitivity 20μPa/(1mA/m) ratio, access to the base 10 multiplied by 20, expressed in decibels (dB). Note. Depending on the measured values \u200b\u200bin this section, to calculate the magnetic - sound sensitivity level (MASL) use the following formula. MASL = output sound pressure level (SPL) -20lg (H/(1mA/m)) dB Where. The magnetic field strength H --- test point unit is mA per meter (mA/m). ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 25102.1-2010_English be delivered?

Answer: Upon your order, we will start to translate GB/T 25102.1-2010_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 25102.1-2010_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 25102.1-2010_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.