GB/T 4760-1995 Acoustics—Measurement procedure for silencers

GB 4760-1984

GBJ 76 GB/T 3102.1-1993 Quantities and units—Space and time GB/T 3102.2-1993 Quantities and units—Periodic and related phenomena GB/T 3102.3-1993 Quantities and units—Mechanics GB/T 3102.4-1993 Quantities and units—Heat GB/T 3102.5-1993 Quantities and units—Electricity and magnetism GB/T 3102.6-1993 Quantities and units—Light and related electromagnetic radiations GB/T 3102.7-1993 Quantities and units—Acoustics GB/T 3102.8-1993 Quantities and units—Physical chemistry and molecular physics GB/T 3102.9-1993 Quantities and units—Atomic and nuclear physics GB/T 3102.10-1993 Quantities and units—Nuclear reactions and ionizing radiation GB/T 3102.11-1993 Mathematical signs and symbols for use in the physical sciences and technology GB/T 3102.12-1993 Characteristic numbers GB/T 3102.13-1993 Quantities and units—Solid state physics GB/T 3238-1982 Acoustical levels and refrence quantities GB/T 3240-1982 Preferred frequencies for the acoustical measurement 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 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 3947-1996 Acoustical terminology GB/T 6881-2023 Acoustics—Determination of sound power levels and sound energy levels of noise sources using sound pressure—Precision methods for reverberation test rooms GB/T 6881.1-2002 Acoustics—Determination of sound power levels of noise sources using sound pressure—Precision methods for reverberation rooms GB/T 6881.2-2002 Acoustics—Determination of sound power levels of noise sources—Engineering methods for small,movable sources in reverberant field—Part 1:Comparison method for hard-walled test rooms GB/T 6881.2-2017 Acoustics—Determination of sound power levels and sound energy levels of noise sources using sound pressure—Engineering methods for small movable sources in reverberant fields—Comparison method for a hard-walled test room GB/T 6881.3-2002 Acoustics—Determination of sound power levels of noise sources-using sound pressure—Engineering metheds for small,movable sources in reverberant fields—Part 2:Methods for special reverberation test rooms GB/T 6882-1986 Acoustics—Determination of sound power levels of noise sources—Precision methods for anechoic and semi-anechoic rooms GB/T 6882-2008 Acoustics—Determination of sound power levels of noise sources using pressure—Precision methods for anechoic and hemi-anechoic rooms GB/T 6882-2016 Acoustics—Determination of sound power levels and sound energy levels of noise sources using sound pressure—Precision methods for anechoic rooms and hemi-anechoic rooms 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 7325-1991