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 260.0 via email in 1~3 business day valid
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 18083-2000 Health protection zone standards for industrial enterprises by noise 45.0 via email in 1 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 16 110.0 via email in 1~3 business day valid
GB/T 25612-2010 Earth-moving machinery—Determination of sound power level—Stationary test conditions 345.0 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
JJF 1191-2008 Calibration Specification for Acoustic Performance of Audiometry Rooms 360.0 via email in 1~5 business day valid
GB/T 4854.7-1999 Acoustics-Reference zero for the calibration of audiometric equipment-Part 7:Reference threshold of hearing under free-field and diffuse-field listening conditions 195.0 via email in 1~3 business day abolished
GB/T 32523-2016 210.0 via email in 1~3 business day valid
GB/T 5898-2004 Measurement of noise emitted by rock drilling machines and pneumatic tools―Engineering method 240.0 via email in 1~3 business day abolished
GB/T 17696-1999 Acoustics--Audiometric test methods--Part 3:Speech audiometry 225.0 via email in 1~3 business day valid
GB/T 21231-2007 Acoustics - Method for the measurement of airborne noise emitted by small air-moving devices 345.0 via email in 1~3 business day valid
GB/T 17248.5-1999 Acoustics--Noise emitted by machinery and equipment--Measurement of emission sound pressure levels at a work station and at other specified positions--Method requiring environmental corrections 300.0 via email in 1~3 business day valid
GB/T 3767-2016 930.0 via email in 1~10 business day valid
GB/T 6881.3-2002 Acoustics--Determination of sound power levels of noise sources-using sound pressure--Engineering methods for small,movable sources in reverberant field--Part 2:Methods for special re 260.0 via email in 1~3 business day valid
GB/T 20243.1-2006 Acoustics—Measurement of the influence of road surface on traffic onise Part 1:Statistical Pass-By method 210.0 via email in 1~3 business day valid
GB/T 15173-1994 Sound calibrators 90.0 via email in 1~3 business day abolished
GB/T 14369-2011 Acoustics—Measurement methods of insertion loss,echo reduction and sound absorption coefficient for underwater acoustical material samples 270.0 via email in 1~3 business day valid
GB/T 19886-2005 Acoustics—Guidelines for noise control by enclosures and cabins 550.0 via email in 1~3 business day valid
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