GB/T 41886-2022 Requirements for cabin acoustic design of transport aircraft

ISO 9921 CCAR-25-R4 CCAR-33-R2 GB/T 3767-1996 Acoustics—Determination of sound power levels of noise sources using sound pressure—Engineering method in an essentially free field over a reflecting plane 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 3947-1996 Acoustical terminology GB/T 6881.1-2002 Acoustics—Determination of sound power levels of noise sources using sound pressure—Precision methods for reverberation 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 16405-1996 Acoustics—Measurement of insertion loss of ducted silencers without flow—Laboratory survey method 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 18696.1-2004 Acoustics—Determination of sound absorption coefficient and impedance in impedance tubes—Part 1:Method using standing wave ratio GB/T 18696.2-2002 Acoustics—Determination of sound absorption coefficient and impedance in impedance tubes—Part 2:Transfer function method GB/T 20247-2006 Acoustics—Measurement of sound absorption in a reverberation room GB/T 20248-2006 Acoustics—Measurement of sound pressure levels in the interior of aircraft during flight GB/T 25516-2010 Acoustics—Laboratory measurement procedures for ducted silencers and air—Terminal units loss,flow noise and total pressure loss HB 8525-2017 HB 8525-2017 Civil Aircraft Development Procedure HB 7126-1994 Measurements of sound absorption coefficient for mixed-echo chamber of aviation materials and components GB/T 16405-2025 Acoustics—Measurement of insertion loss of ducted silencers without flow—Laboratory survey method