GB/T 25982-2024 Limits and measurement methods for bus interior noise

GB/T 25982-2010 Permissible levels and test methods of bus internal noise

GB/T 3241-2010 Electroacoustics—Octave-band and fractional-octave-band filters GB/T 3730.1-2001 Motor vehicles and trailers—Types—Terms and definitions GB/T 3730.1-2022 Terms and definitions of motor vehicles,trailers and combination vehicle—Part 1:Types GB/T 3785.1-2023 Electroacoustics—Sound level meters—Part 1:Specifications GB/T 3947-1996 Acoustical terminology GB/T 8170-1987 Rules for rounding off of numberical values GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values GB/T 15089-2001 Classification of power-driven vehicles and trailers GB/T 15173-2010 Electroacoustics—Sound calibrators GB/T 19596-2004 Terminology of electric vehicles GB/T 19596-2017 Terminology of electric vehicles