Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
LoginRegister
Position: Search valid to be valid superseded to be superseded abolished to be abolished
Standard No. Title Price(USD) Delivery Status Add to Cart
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
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
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
GBJ 122-1988 of noise produced by industrial enterprises 240.0 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threshold of hearing under free-field and diffuse-field listening conditions 195.0 via email in 1~3 business day superseded
GB/T 17696-1999 Acoustics--Audiometric test methods--Part 3:Speech audiometry 225.0 via email in 1~3 business day valid
GB/T 6881.1-2002 Acoustics--Determination of sound power levels of noise sources using sound pressure--Precision methods for reverberation rooms 360.0 via email in 1~3 business day valid
GB/T 3768-1996 Acoustics--Determination of sound power levels of noise sources using sound pressure--Survey method using an enveloping measurement surface over a reflecting plane 360.0 via email in 1~5 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 270.0 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 19886-2005 Acoustics—Guidelines for noise control by enclosures and cabins 570.0 via email in 1~3 business day valid
GB/T 7965-2002 Acoustics - Measurement of underwater sound transducers 375.0 via email in 1~3 business day valid
GB/T 1988 7-2005 GB/T 1988 7-2005 Acoustics - Measurement of the in situ sound attenuation of a removable screen 165.0 via email in 1~3 business day valid
JJG 994-2004 Verification Regulation of Digital Audio Generators 225.0 via email in 1~3 business day valid
GB/T 16407-1996 Acoustics―Characteristics and measurements of field of pressure pulse lithotripters 120.0 via email in 1~3 business day superseded
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/T 16407-2006 Acoustics - Characteristics and measurements of field of Pressurepulse lithotripters 270.0 via email in 1~3 business day valid
GB/T 7341.4-1998 - Part 4: Equipment for extended high-frequency audiometry 120.0 via email in 1~3 business day valid
GB/T 19890-2005 Acoustics-High intensity focused ultrasound(HIFU)measurements of acoustic power and field characteristics 225.0 via email in 1~3 business day valid
GB/T 15611-1995 Acoustics - Calibration of high frequency hydrophone 135.0 via email in 1~3 business day valid
About Us | Contact Us | Payment
Tel: +86-10-8572 5655 | Fax: +86-10-8581 9515 | Email: coc@codeofchina.com | Send me a messageQQ: 672269886
Copyright: Codeofchina Inc 2008-2020