| Standard No. |
Title |
Price(USD) |
Delivery |
Status |
Add To Cart |
| GB/T 17697-1999 |
Acoustics--Determination of sound power radiated into a duct by fans--In -duct method |
|
via email in
1-3 business day
|
ABOLISHED
|
please email coc@codeofchina.com for quotation
|
| GB/T 15484-1995 |
Acoustics－Description and measurement of physical properties of sonic booms |
|
via email in
1-3 business day
|
VALID
|
please email coc@codeofchina.com for quotation
|
| GB/T 7341.1-1998 |
Audiometers-Part 1 : Pure-tone audiometers |
|
via email in
1-3 business day
|
ABOLISHED
|
please email coc@codeofchina.com for quotation
|
| JJF 1274-1990 |
~ |
 (USD) |
via email in
1 business day
|
VALID
|
|
| GB/Z 38251-2019 |
Acoustics—Calculation of sound attenuation during propagation for electrical converter station—Engineering method |
 (USD) |
via email in
1-5 business day
|
VALID
|
|
| JJG 806-1993 |
UItrasonic Souce of Ultrasonic Therapeutic Equipment for Medical Use |
 (USD) |
via email in
1 business day
|
VALID
|
|
| GB/T 15953-1995 |
Instruments for the measurement of aural acoustic impedance/admittance |
|
via email in
1-3 business day
|
ABOLISHED
|
please email coc@codeofchina.com for quotation
|
| JJG 710-1994 |
Verivication Regulation of Working Measuring Vibration Instrument |
 (USD) |
via email in
1-3 business day
|
ABOLISHED
|
|
| GB/T 16404.2-1999 |
Acoustics—Determination of sound power levels of noise sources using sound intensity—Part 2：Measurement by scanning |
|
via email in
1-3 business day
|
VALID
|
please email coc@codeofchina.com for quotation
|
| JJG (船舶) 6-1991 |
|
|
via email in
|
VALID
|
please email coc@codeofchina.com for quotation
|
| GB/T 17247.1-2000 |
Acoustics--Attenuation of sound during propagation outdoors--Part 1:Calculation of the absorption of sound by the atmosphere |
 (USD) |
via email in
1-5 business day
|
VALID
|
|
| JJF 1306-1990 |
O.T.N. of 3cm，5cm Coaxial Thermal Noise Primary Standard |
 (USD) |
via email in
1 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 |
|
via email in
1-3 business day
|
ABOLISHED
|
please email coc@codeofchina.com for quotation
|
| JJG 778-1992 |
Noise level Statistical Analyzers |
 (USD) |
via email in
1-3 business day
|
ABOLISHED
|
|
| JJG 869-1994 |
Verification Regulation of Electro-acoustical Measurement Instruments for Telephone set |
 (USD) |
via email in
1-3 business day
|
ABOLISHED
|
|
| GB/T 22157-2018 |
Acoustics—Specification of test tracks for measuring noise emitted by road vehicles and their tyres |
 (USD) |
via email in
1-5 business day
|
VALID
|
|
| GB/Z 27764-2011 |
Acoustics—Determination of sound transmission loss in impedance tubes—Transfer matrix method |
 (USD) |
via email in
1-5 business day
|
VALID
|
|
| JJG 388-1985 |
Audiometers |
 (USD) |
via email in
1-3 business day
|
ABOLISHED
|
|
| JJG 990-2004 |
Verification Regulation for Acoustic Detector |
 (USD) |
via email in
1-3 business day
|
VALID
|
|
| JJG 199-1996 |
Vdrification Regulation of Tone Burst Generators |
 (USD) |
via email in
1-3 business day
|
VALID
|
|
|
|
