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Position: Standard Search VALID TO BE VALID SUPERSEDED TO BE SUPERSEDED ABOLISHED TO BE ABOLISHED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 4854.4-1999 Acoustics-Reference zero for the calibration of audiometric equipment-Part 4:Reference levels for narrow-band masking noise via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 5265-1985 Measurement of underwater noise 90 (USD) via email in 1-3 business day ABOLISHED
GB/T 3947-1996 Acoustical terminology via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
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 180 (USD) via email in 1-3 business day VALID
GB/T 14573.2-1993 Acoustics. Statistical methods for determining and verifying stated noise emission values of machinery and equipment. Part 2: Methods for stated values for individual machines 30 (USD) via email in 1-3 business day VALID
JB/T 7558-1994 1695 (USD) via email in 1-10 business day ABOLISHED
GB 5266-1985 Measurement of the longitudinal wave velocity and attenuation for underwater acoustical materials; Pulse-tube method 135 (USD) via email in 1-3 business day ABOLISHED
GB/T 31228-2014 Instrumented nanoindentation test—Terminology 300 (USD) via email in 1-3 business day VALID
GB/T 4854.1-1999 Acoustics--Reference zero for the calibration of audiometric equipment--Part 1: Reference equivalent threshold sound pressure levels for pure tones and supra-aural earphones 165 (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