GB/T 32524.2-2016 Acoustics—Determination of sound power level and directivity character of power capacitor using sound pressure—Part 2：Engineering methods for an essentially free field over a reflecting plane

GB/T 32524.1-2016 Acoustics—Determination of sound power level and directivity character of power capacitor unit using sound pressure—Part 1:Precision method for hemi-anechoic rooms

GB/T 3767-2016 Acoustics—Determination of sound power levels and sound energy levels of noise sources using sound pressure—Engineering methods for an essentially free field over a reflecting plane GB/T 4129-2003 Acoustics—Requirements for the performance and calibration of reference sound sources used for the determination of sound power levels GB 26861-2011 Safety code of electric power industry—Part of high voltage laboratory 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 3785.1-2010 Electroacoustics—Sound level meters—Part 1:Specifications GB/T 3785.1-2023 Electroacoustics—Sound level meters—Part 1:Specifications 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 15173-1994 Sound calibrators GB/T 15173-2010 Electroacoustics—Sound calibrators GB/T 16538-1996 Acoustics—Determination of sound power levels of noise sources using sound pressure—Survey method using a reference sound source GB/T 16538-2008 Acoustics—Determination of sound power levels of noise sources using sound pressure—Comparison method in situ GB/T 16927.1-1997 High-voltage test techniques Part 1:General test requirements GB/T 16927.1-2011 High-voltage test techniques—Part 1:General definitions and test requirements GB/T 19052-2003 Acoustics—Noise emitted by machinery and equipment—Rules for the drafting and presentation of a noise test code GB/T 20993-2007 DC filter capacitors for HVDC transmission systems GB/T 20993-2012 DC filter capacitors and neutral bus surge capacitors for HVDC transmission system GB/T 20994-2007 Shunt capacitors and AC filter capacitors for HVDC transmission systems 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 GB/T 15173-2026 Electroacoustics—Sound calibrators