Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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GB 11669-1989 105.0 via email in 1~3 business day superseded
GB/T 14573.1-1993 Statistical methods for determining and verifying stated noise emission values of machinery and equipment. Part 1: General considerations and definitions 45.0 via email in 1~3 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 18022-2000 Acoustics - Methods for measuring the longitudinal sound speed and attenuation coefficient of rubbers and plastics in the frequency range 1 MHz to 10 MHz 150.0 via email in 1~3 business day valid
GB 3768-1983 135.0 via email in 1~3 business day superseded
GB/T 12800-1991 Acoustics-Audible emergency evacuation signal 90.0 via email in 1~3 business day valid
GB/T 30113.1-2013 Optical Measurement Methods on Flow Field in Microgravity Fluid Physics - Part 1: Shadowgraph and Schlieren 210.0 via email in 1~3 business day valid
GB/T 25898-2010 Instrumented nanoindentation test—Indentation hardness and modulus of thin film 240.0 via email in 1~3 business day valid
GB/T 3238-1982 Acoustical levels and reference quantities 30.0 via email in 1~3 business day valid
JB/T 7705-1995 Abrasion test method for loose abrasive grains Rubber wheel method 530.0 via email in 1~3 business day abolished
GB 4963-1985 Normal equal-loudness contours for pure tones under free field listening conditions 90.0 via email in 1~3 business day superseded
GB/T 14574-1993 Acoustics. Noise labelling of machinery and equipment 90.0 via email in 1~3 business day abolished
GB/T 7582-1987 Acoustics; Threshold of hearing by air conduction as a function of age and sex for otologically normal persons 105.0 via email in 1~3 business day superseded
QJ 1293A-1998 Parameter Symbol of Aerodynamics 330.0 via email in 1~5 business day valid
GB/T 14573.3-1993 methods for determining and verifying stated noise emission values of machinery and equipment. Part 3: Simple (transition) method for determining and verifying labelled va 30.0 via email in 1~3 business day valid
GB/T 3223-1994 Acoustics--Free-field calibration method of underwater sound transducers 270.0 via email in 1~3 business day valid
GB/T 22458-2008 General rules of instrumented nanoindentation test 540.0 via email in 1~3 business day valid
GB 5266-1985 Measurement of the longitudinal wave velocity and attenuation for underwater acoustical materials; Pulse-tube method 120.0 via email in 1~3 business day superseded
GB 1251.1-1989 Danger signals for work places-Auditory danger signals 165.0 via email in 1~3 business day superseded
GB 3767-1983 210.0 via email in 1~3 business day superseded
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