L31 电声器件 标准查询与下载
共找到 394 条与 电声器件 相关的标准，共 27 页
Technical requirements for measuring standard device of carbon transmitters
- ICS
- 33.050.10
- CCS
- L31
- 发布
- 1987-09-01
- 实施
- 1988-01-01
This standard specifies methods of measurement of the characteristics of hearings aids using bone vibrator output. These methods, which are chosen to be practical and reproducible and are based on selected fixed parameters, will produce a suitable basis for the exchange of information or for direct comparison of the electroacoustical characteristics of hearing aids using bone vibrator output.
Hearing aids; methods of measurement of characteristics of hearing aids with bone vibrator output; identical with IEC 60118-9, edition 1985
- ICS
- 11.180.15
- CCS
- L31
- 发布
- 1987-06
- 实施
Hearing aids Part 7:Measurement of performance characteristics of hearing aids for quality inspection for delivery purposes
Hearing Aids Part 7: Measurement of Performance Characteristics of Hearing Aids for Quality Inspection for Delivery Purposes
- ICS
- 11
- CCS
- L31
- 发布
- 1987-01-01
- 实施
Preferred Earhook Nozzle Thread for Postauricular Hearing Aids
Preferred Earhook Nozzle Thread for Postauricular Hearing Aids
- ICS
- 17.140
- CCS
- L31
- 发布
- 1987-01-01
- 实施
Hearing aids; part 9: methods of measurement of characteristics of hearing aids with bone vibrator output
- ICS
- CCS
- L31
- 发布
- 1987
- 实施
This standard describes a preferred thread for earhook nozzles on postauricular hearing aids. The need for such a standard arises from the wide variety of earhooks that hearing aid dispensers are required to keep in inventory to utilize different postauricular hearing aids from several manufacturers. This standard applies only to those postauricular hearing aids which utilize screw-on threads.
Preferred Earhook Nozzle Thread for Postauricular Hearing Aids
- ICS
- 11.180.15
- CCS
- L31
- 发布
- 1987
- 实施
This standard describes a preferred thread for earhook nozzles on postauricular hearing aids. The need for such a standard arises from the wide variety of earhooks that hearing aid dispensers are required to keep in inventory to utilize different postaur
Preferred Earhook Nozzle Thread for Postauricular Hearing Aids
- ICS
- 17.140.50
- CCS
- L31
- 发布
- 1987
- 实施
Covers bone vibrators which are integral with, not integral with , or attachments to hearing aids, and specifies the methods of measuring the hearing aid output and expresses the input/output ratio as an acousto-mechanical sensitivity level measured on a mechanical coupler.
Hearing aids - Methods for measurement of characteristics of hearing aids with bone vibrator output
- ICS
- 11.180.15
- CCS
- L31
- 发布
- 1986-11-28
- 实施
- 1986-11-28
Hearing aids. Definitions and measuring methods.
- ICS
- 17.140.50;31.220.10
- CCS
- L31
- 发布
- 1986-08-01
- 实施
- 1986-08-20
Hearing aids. Part 10 : Guide to hearing aid standards
- ICS
- 17.140.50
- CCS
- L31
- 发布
- 1986
- 实施
Describes test methods which simulate the acoustical effects of the presence of a median adult wearer on the performance of a hearing aid, by using a manikin (head and torso simulator) to provide realistic, in situ, test conditions.
Hearing aids - Methods for measurement of the performance characteristics of hearing aids under simulated in situ working conditions
- ICS
- 11.180.15
- CCS
- L31
- 发布
- 1985-02-28
- 实施
- 1985-02-28
Hearing aids; part 7: measurement of performance characteristics of hearing aids for quality inspection for delivery purposes
- ICS
- CCS
- L31
- 发布
- 1985
- 实施
The methods described will produce a suitable basis for the exchange of information or for direct comparison of the electroacoustical characteristics of the device. These methods are chosen to be practical and reproducible and are based on selected fixed
Hearing aids. Part 9 : Methods of measurement of characteristics of hearing aids with bone vibrator output
- ICS
- 11.180.15
- CCS
- L31
- 发布
- 1985
- 实施
Hearing aids; part 5: nipples for insert earphones
- ICS
- CCS
- L31
- 发布
- 1985
- 实施
Hearing aids; part 11: symbols and other markings on hearing aids and related equipment
- ICS
- CCS
- L31
- 发布
- 1985
- 实施
Specifies those dimensions which are essential in order to ensure the interchangeability of insert earphones as used with earmoulds or other attachments to the ear.
Hearing aids. Specification for dimensions of the nipple and sealing device for insert earphones
- ICS
- 11.180.15
- CCS
- L31
- 发布
- 1984-03-30
- 实施
- 1984-03-30
Describes the measurement of physical performance characteristics of air-conduction hearing aids based on a free-field technique and measured with an ear simulator.
Hearing aids - Methods for measurement of electroacoustical characteristics
- ICS
- 11.180.15
- CCS
- L31
- 发布
- 1984-03-30
- 实施
- 1984-03-30
Specifies symbols and other markings for the switches and controls on hearing aids and related equipment for the benefit of users and those involved in the fitting of such equipment.
Hearing aids - Specification for symbols and other markings on hearing aids and related equipment
- ICS
- 11.180.15
- CCS
- L31
- 发布
- 1984-03-30
- 实施
- 1984-03-30
Hearing aids; part 3: hearing aids equipment not entirely worn on the listener
- ICS
- CCS
- L31
- 发布
- 1984
- 实施
