GB/T 11455-1989
AbolishedHearing aid equipment not entirely wornon the listener
不完全佩戴在听者身上的助听设备
Application Summary AI generated
GB/T 11455-1989 specifies technical requirements and test methods for hearing aid equipment that is not entirely worn on the listener, such as body-worn or tabletop devices. It is applied in the manufacturing and quality inspection of assistive listening systems used in classrooms, theaters, or home environments where the primary unit is separate from the user. The standard ensures consistent acoustic performance and safety for devices that transmit sound via cords or wireless links rather than being fully ear-level.
Related Standards
GB/T 7164-2004
Radiation detectors for nuclear reactors--Characteristics and test methods
GB/T 18696.1-2004
Acoustics--Determination of sound absorption coefficient and impedance in impedance tubes--Part 1:Method using standing wave ratio
GB/Z 27764-2011
Acoustics - Determination of sound transmission loss in impedance tubes - Transfer matrix method
GB/Z 38251-2019
Acoustics—Calculation of sound attenuation during propagation for electrical converter station—Engineering method
GB/Z 40842-2021
General technical requirenments for electrolarynx
GB/Z 41283.3-2026
Acoustics—Soundscape—Part 3: Data analysis
GB/Z 7584.5-2026
Acoustics—Hearing protectors—Part 5: Method for estimation of noise reduction using fitting by inexperienced test subjects
GB/Z 41283.2-2026
Acoustics—Soundscape—Part 2: Data collection and reporting requirements
Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.