GB/T 9389.1-2026
使用红外辐射传输音频和/或视频及相关信号 第1部分:总则
Transmission of audio and/or video and related signals using infra-red radiation—Part 1: General
- 实施日期
- 2027-02-01
- ICS 分类
- 17.140.50
组合使用关键词、标准类型、状态与 ICS 分类,快速定位所需国家标准。
找到 43 条
GB/T 9389.1-2026
Transmission of audio and/or video and related signals using infra-red radiation—Part 1: General
GB/T 15173-2026
Electroacoustics—Sound calibrators
GB/T 3241.2-2025
Electroacoustics—Octave-band and fractional-octave-band filters—Part 2: Pattern evaluation tests
GB/T 3241.1-2025
Electroacoustic—Octave-band and fractional-octave-band filters—Part 1: Specifications
GB/T 20441.8-2025
Electroacoustics—Measurement microphones—Part 8: Methods for determining the free-field sensitivity of working standard microphones by comparison
GB/T 20441.7-2025
Electroacoustics—Measurement microphones—Part 7: Values for the difference between free-field and pressure sensitivity levels of laboratory standard microphones
GB/T 7341.3-2024
Electroacoustics—Audiometric equipment—Part 3: Test signals of short duration
GB/T 3785.2-2023
Electroacoustics—Sound level meters—Part 2: Pattern evaluation tests
GB/T 3785.1-2023
Electroacoustics—Sound level meters—Part 1: Specifications
GB/T 42553-2023
Electroacoustics—Methods to determine corrections to obtain the free-field response of a sound level meter
GB/Z 40842-2021
General technical requirenments for electrolarynx
GB 9706.237-2020
Medical electrical equipment—Part 2-37: Particular requirements for the basic safety and essential performance of ultrasonic medical diagnostic and monitoring equipment
GB/T 7341.5-2018
Electroacoustics—Audiometric equipment—Part 5: Instruments for the measurement of aural acoustic impedance/admittance
GB/T 3785.3-2018
Electroacoustics—Sound level meters—Part 3: Periodic tests
GB/T 25102.12-2018
Electroacoustics—Hearing aids—Part 12: Dimensions of electrical connector systems
GB/T 20441.2-2018
Electroacoustics—Measurement microphones—Part 2: Primary method for pressure calibration of laboratory standard microphones by the reciprocity technique
GB/T 25102.8-2017
Electroacoustics—Hearing aids—Part 8: Methods of measurement of performance characteristics of hearing aids under simulated in situ working conditions
GB/T 25102.6-2017
Electroacoustic—Hearing aids—Part 6: Characteristics of electrical input circuits for hearing aids
GB/T 20441.6-2017
Electroacoustics—Measurement microphones—Part 6: Electrostatic actuators for determination of frequency response
GB/T 25498.5-2017
Electroacoustics—Simulators of human head and ear—Part 5:2 cm3 coupler for the measurement of hearing aids and earphones coupled to the ear by means of ear inserts