code of china Chinese Classification Professional Classification ICS Classification Latest News

LoginRegister
Position: Standard Search VALID TO BE VALID SUPERSEDED TO BE SUPERSEDED ABOLISHED TO BE ABOLISHED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 19889.8-2006 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 on a heavyweight standard floor via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 19890-2005 Acoustics-High intensity focused ultrasound(HIFU)measurements of acoustic power and field characteristics via email in VALID please email coc@codeofchina.com for quotation
GB/T 14366-2017 Acoustics—Estimation of noise-induced hearing loss (USD) 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 (USD) via email in 1 business day VALID
JJG (机械) 96-1992 (USD) via email in 1-3 business day VALID
GB/T 19889.1-2005 Acoustics—Stationary audible warning devices used outdoors—Part 1:Field measurements for determination of sound emission quantities via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 16540-1996 Acoustics-Measurement and characterisation of ultrasonic fields in the frequency range 0.5MHz to 15MHz-Hydrophone method via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
JJG 481-1987 Condenser Microphones (Free-Field Comparison Method) (USD) via email in 1-3 business day ABOLISHED
GB/T 6882-2008 Acoustics - Determination of sound power levels of noise sources using pressure - Precision methods for anechoic and hemi-anechoic rooms (USD) via email in 1-5 business day ABOLISHED
GB/T 17697-2014 Acoustics—Determination of sound power radiated into a duct by fans and other air-moving devices—In-duct method (USD) via email in 1-8 business day VALID
GB/T 14365-2017 Acoustics—Measurements of sound pressure level emitted by stationary road vehicles (USD) via email in 1-3 business day VALID
JJG 721-1991 500MHz Phase Noise Measurement Set (Phase Detector Method) (USD) via email in 1-3 business day ABOLISHED
JJF 1145-2006 Calibration Specification for Electret Microphone Instrument (USD) via email in 1-3 business day VALID
GB/T 36079-2018 Acoustics—Procedures for determination of transmission loss, flow noise and total pressure loss coefficient for arrayed element dissipative silencers—Equivalent measurement (USD) via email in 1 business day VALID
GB/T 19889.10-2006 Acoustics―Measurement of sound insulation in buildings and of building elements―Part 10:Laboratory measurements of airborne sound insulation of small building elements via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 20248-2006 Acoustics - Measurement of sound pressure levels in the interior of aircraft during flight via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
JJG (铁道) 169-1998 (USD) via email in 1-3 business day
GB/T 16404.3-2006 Acoustics - Determination of sound power levels of noise sources using sound intensity - Part 3: Precision method for measurement by scanning via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 17247.2-1998 Acoustics—Attenuation of sound during propagation outdoors--Part 2:General method of calculation via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
JJG 665-1990 Ultrasonic Power Meter for Milliwatt level (USD) via email in 1-3 business day ABOLISHED
About Us | Contact Us | Terms of Service | Privacy | Cancellation & Refund Policy | Payment
Tel:+86-10-8572 5655 Fax:+86-10-8581 9515 Email: coc@codeofchina.com QQ: 672269886
Copyright:TransForyou Co., Ltd. 2008-2020