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JJG 2038-2004 Verification Scheme of Measuring Instruments for Audiometry (USD) via email in 1-3 business day VALID
GB/T 14369-2011 Acoustics—Measurement methods of insertion loss,echo reduction and sound absorption coefficient for underwater acoustical material samples (USD) via email in 1-3 business day VALID
GB/T 17249.3-2012 Acoustics - Recommended practice for the design of low-noise workplaces containing machinery - Part 3: Sound propagation and noise prediction in workrooms (USD) via email in 1-5 business day VALID
GB/T 25077-2010 Acoustics—Materials for acoustical applications—Determination of airflow resistance (USD) via email in 1-3 business day VALID
GB/T 31004.1-2014 Acoustics—Measurement of sound insulation in buildings and of building elements using sound intensity—Part 1:Laboratory measurements (USD) via email in 1-3 business day VALID
GB/T 3222.2-2009 Acoustics—Description measurement and assessment of environmental noise—Part 2:Determination of environmental noise levels (USD) via email in 1-5 business day VALID
GB/T 7164-2004 Radiation detectors for nuclear reactors Characteristics and test methods (USD) via email in 1-3 business day VALID
GB/T 5265-2009 Acoustics—Measurement of underwater noise (USD) via email in 1-3 business day VALID
GB/T 3768-2017 Acoustics—Determination of sound power levels and sound energy levels ofnoise sources using sound pressure—Survey method using an envelopingmeasurement surface over a reflecting plane (USD) via email in 1-5 business day VALID
JJF 1146-2006 Calibration Specification for Acoustic Characteristcs of Anechoic Water Tanker (USD) via email in 1-3 business day VALID
GB/T 3449-2011 Acoustics—Measurement of noise inside railbound vehicles (USD) via email in 1-3 business day VALID
GB/T 15173-1994 Sound calibrators via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 37242-2018 Robot noise test method (USD) via email in 1-3 business day VALID
GB/T 20249-2006 Acoustics - Definitions and measurement methods for the transmitted fields of focusing ultrasonic transducers via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 32522-2016 (USD) via email in 1-5 business day VALID
GB/T 5266-2006 Acoustics—Measurements of the longitudinal wave velocity and attenuation coefficient for underwater acoustical materials—Pulse tube method via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
DZ/T 0292-2016 Technical regulations for application of marine multibeam bathymetric survey via email in VALID please email coc@codeofchina.com for quotation
GB/T 32706-2016 Safety requirements for laboratory instruments and equipments—Noise measuring instruments (USD) via email in 1-8 business day VALID
GB/T 22159.4-2017 Acoustics and vibration—Laboratory measurement of vibro-acoustic transfer properties of resilient elements—Part 4:Dynamic stiffness of elements other than resilient supports for translatory motion (USD) via email in 1-5 business day VALID
GB/T 25079-2010 Acoustics—Applicationofnew measurementmethodsin (USD) via email in 1-3 business day VALID
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