GB/T 25102.8-2017 Active National standards

GB/T 25102.8-2017 Electroacoustics—Hearing aids—Part 8:Methods of measurement of performance characteristicsof hearing aids under simulated in situ working conditions

Publish Date: 2017-11-01 Implement Date: 2018-05-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 25102.8-2017

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Audio equipment, electroacoustic devices

ICS Name: Electroacoustics

Publish Date: 2017-11-01

Implement Date: 2018-05-01

Pages: 27 pages

Scope

This part of GB/T 25102 specifies the measurement method for simulating the acoustic impact of adult wearers on the performance of hearing aids. This part is applicable to establishing the performance measurement of hearing aids under simulated actual working conditions, proposes a simplified method for measuring the performance of hearing aids under simulated actual conditions, and provides a method for determining the directivity index (DI) of directional microphones in hearing aids in the horizontal direction. In addition, this part specifies the allowable deviations. Only when the actual measurement results of the test laboratory include the expanded uncertainty and completely fall within the allowable deviations extended according to the Umax value specified in this part, can it be proved that it complies with the provisions of this part.