GB/T 7584.1-2004 Acoustics-Hearing Protectors—Part 1:Subjective method for the measurement of sound attenuation

GB/T 7584-1987 Acoustics—Measurement of sound attenuation of hearing protectors—Subjective method GB/T 5893.3-1986

ISO 354:2003 GB/T 3241-1998 Octave-band and fractional-octave-band filters GB/T 3241-2010 Electroacoustics—Octave-band and fractional-octave-band filters GB/T 3769-1983 Scales and sizes for plotting frequency characteristics and polar diagrams GB/T 3769-2010 Electroacoustics—Scales and sizes for plotting frequency characteristics and polar diagrams GB/T 3785-1983 Electric, sonic properties and measuring methods for sound level meters GB/T 3785.1-2010 Electroacoustics—Sound level meters—Part 1:Specifications GB/T 3785.1-2023 Electroacoustics—Sound level meters—Part 1:Specifications GB/T 3785.2-2010 Electroacoustics—Sound level meters—Part 2:Pattern evaluation tests GB/T 3785.2-2023 Electroacoustics—Sound level meters—Part 2:Pattern evaluation tests GB/T 3785.3-2018 Electroacoustics—Sound level meters—Part 3:Periodic tests GB/T 7341.1-1998 Audiometers Part 1:Pure-tone audiometers GB/T 7341.1-2010 Electroacoustics—Audiological equipment—Part 1:Pure-tone audiometers GB/T 16296-1996 Acoustics—Audiometric test methods—Part 2:Sound field audiometry with pure tone and narrow-band test signals GB/T 16296.1-2018 Acoustics—Audiometric test methods—Part 1:Pure-tone air and bone conduction audiometry GB/T 16296.2-2016 Acoustics—Audiometric test methods—Part 2:Sound-field audiometry with pure-tone and narrow-band test signals GB/T 16296.3-2017 Acoustics—Audiometric test methods—Part 3:Speech audiometry GB/T 17181-1997 Integrating-averaging sound level meters GB/T 3241.2-2025 Electroacoustics—Octave-band and fractional-octave-band filters—Part 2:Pattern evaluation tests GB/T 3241.1-2025 Electroacoustics—Octave-band and fractional-octave-band filters—Part 1:Specifications

ISO 4869-1:1990