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Position: Search valid to be valid superseded to be superseded abolished to be abolished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 4963-1985 Normal equal-loudness contours for pure tones under free field listening conditions $90.00 via email in 1~3 business day abolished
GB 4964-1985 Measurement of noise emitted by vessels on inland water ways and harbours $120.00 via email in 1~3 business day abolished
GB 5266-1985 Measurement of the longitudinal wave velocity and attenuation for underwater acoustical materials; Pulse-tube method $120.00 via email in 1~3 business day abolished
GB 5979-1986 Regulation on noise levels on board sea-going ships $84.00 immediately valid
GB 5980-2000 Regulation on noise levels on board inland ships $184.00 via email in 1~3 business day abolished
GB 5980-2009 Regulation on noise levels on board inland ships $80.00 via email in 1~3 business day valid
GB 6882-1986 Acoustics; Determination of sound power levels of noise sources; Precision methods for anechoic and semi-anechoic rooms $270.00 via email in 1~3 business day abolished
GB 7342-1987 IEC provisional reference coupler for the calibration of earphones used in audiometry $45.00 via email in 1~3 business day abolished
GB 7441-1987 Noise measurement method for the power plant turbine generator $90.00 via email in 1~3 business day abolished
GB 7786-1987 Limits of sound power level for noise emitted by air compressors (for power source use) and diaphragm compressors $220.00 via email in 1~3 business day abolished
GB 7966-1987 Acoustics; Ultrasonic power measurement in the frequency range 0.5~10MHz $165.00 via email in 1~3 business day abolished
GB 9660-1988 Environment standard and measurement of aircraft noise around airport $70.00 via email in 1~3 business day valid
GB 9661-1988 Measurement of aircraft noise around airport $120.00 via email in 1~3 business day valid
GB 9706.237-2020 Medical electrical equipment—Part 2-37: Particular requirements for the basic safety and essential performance of ultrasonic medical diagnostic and monitoring equipment $500.00 via email in 1~5 business day valid
GB 9911-1988 Measurement method of airborne noise emitted by marine diesel engine $240.00 via email in 1~3 business day abolished
GB/T 11452-1989 Guide to hearing aid standards $240.00 via email in 1~3 business day abolished
GB/T 11454-1989 Magnetic field strength in audio-frequency induction loops for hearing aid purposes $180.00 via email in 1~3 business day abolished
GB/T 11670-1989 Acoustics--Characteristics and specifications for laboratory standard condenser microphones $410.00 via email in 1~3 business day abolished
GB/T 12060.16-2017 Sound system equipment-Part 16:Objective rating of speech intelligibility by speech transmission index $750.00 via email in 1~3 business day valid
GB/T 12303-1990 Measurement of sound pressure level for sound signal appliances by seagoing vessel $224.00 via email in 1~3 business day superseded
* Related standard quantity: * Page quantity: * Current: * First Previous [1][2][3][4][5][6][7][8][9][10][11] Next End



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. 2008-2040