Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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GB/T 21232-2007 Acoustics - Guidelines for noise control in offices and workrooms by means of acoustical screens 270.0 via email in 1~3 business day valid
JJF 1277-1990 O.T.N.of the Secondary Standard for the Ultrasonic Power of Watt Level 90.0 via email in 1~3 business day valid
GB/T 16402-1996 Acoustics-Reference equivalent threshold sound pressure levels for pure tones and insert earphones 150.0 via email in 1~3 business day valid
JJG 746-1991 for Ultrasonic Inspection Instruments 105.0 via email in 1~3 business day abolished
GB/T 5111-1995 Acoustics-Measurement of noise emitted by railbound vehicles 90.0 via email in 1~3 business day abolished
JJG 992-2004 Verification Regulation of the Measurement Instruments of Sound Intensity 360.0 via email in 1~3 business day valid
GB/Z 27764-2011 Acoustics - Determination of sound transmission loss in impedance tubes - Transfer matrix method 450.0 via email in 1~3 business day valid
GB/T 15951-1995 Mechanical coupler for measurements on bone vibrators 165.0 via email in 1~3 business day valid
GB/T 1988 9.6-2005 GB/T 1988 9.6-2005 Acoustics - Measurement of sound insulation in buildings and of building elements - Part 6: Laboratory measurments of impact sound insulation of floors 180.0 via email in 1~3 business day valid
GB/T 1988 9.7-2005 GB/T 1988 9.7-2005 Acoustics - Measurement of sound insulation in buildings and of building elements - Part 7: Field measurements of impact sound insulation of floors 240.0 via email in 1~3 business day valid
JJG (电子) 12037-1991 DF-5990A Type Loudspeaker Resonance Frequency Gauge (Trial Implementation) 75.0 via email in 1~3 business day valid
GB/T 16538-2008 Acoustics - Determination of sound power levels of noise sources using sound pressure - Comparison method in situ 300.0 via email in 1~5 business day valid
GB/Z 21233-2007 Acoustics - Assessment of noise annoyance by means of social and socio-acoustics surveys 240.0 via email in 1~3 business day valid
JJF 1275-1990 ~ 45.0 via email in 1~3 business day valid
GB/T 4854.5-2008 Acoustics - Reference zero for the calibration of audiometric equipment- Part 5: Reference equivalent threshold sound pressure levels for pure tone in the frequency range 8 kHz to 16 120.0 via email in 1~3 business day valid
JJG 990-2004 Verification Regulation for Acoustic Detector 240.0 via email in 1~3 business day valid
GB/T 17252-1998 Acoustics - Characteristics and measurements of ultrasonic piezoelectric transducers up to 100 kHz 150.0 via email in 1~3 business day valid
GB/T 1988 9.8-2006 GB/T 1988 9.8-2006 Acoustics - Measurement of sound insulation in buildings and of building elements - Part 8 : Laboratory measurements of the reduction of transmitted impact noise by floor coverings via email in 1~3 business day valid
JJF 1146-2006 Calibration Specification for Acoustic Characteristcs of Anechoic Water Tanker 240.0 via email in 1~3 business day valid
GB/T 15173-2010 Electroacoustics—Sound calibrators 990.0 via email in 1~3 business day valid
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