| Standard No. |
Title |
Price(USD) |
Delivery |
Status |
Add To Cart |
| GB/T 3767-1996 |
Acoustics—Determination of sound power levels of noise sources using sound pressure—Engineering merthod in an essentially free field over a reflecting plane |
|
via email in
1-3 business day
|
ABOLISHED
|
please email coc@codeofchina.com for quotation
|
| JJG 2050-1990 |
Measuring Instruments for Ultrasonic Power |
 (USD) |
via email in
1 business day
|
VALID
|
|
| JJG 991-2004 |
Verification Regulation of Aural Impedance Audiometers |
 (USD) |
via email in
1-3 business day
|
ABOLISHED
|
|
| JJG 665-2004 |
Verification Regulation of Ultrasonic Power Meter for Milliwatt Level |
 (USD) |
via email in
1-3 business day
|
VALID
|
|
| JJG 185-1997 |
Verification Regulation of Measuring Hydrophone in the Frequency Range 500Hz to 1 MHz |
 (USD) |
via email in
1-3 business day
|
ABOLISHED
|
|
| GB/T 20246-2006 |
Acoustics—Determination of sound power levels of multisource industrial plants for evaluation of sound pressure levels in the environment—Engineering method |
|
via email in
1-3 business day
|
VALID
|
please email coc@codeofchina.com for quotation
|
| GB/T 5111-2011 |
Acoustics—Measurement of noise emitted by railbound vehicle |
 (USD) |
via email in
1-5 business day
|
VALID
|
|
| JJG 389-2003 |
Verification Regulation of Artificial Ears |
 (USD) |
via email in
1-3 business day
|
VALID
|
|
| GB/T 20431-2006 |
Acoustics―Guidelines for noise control by silencers |
|
via email in
1-3 business day
|
VALID
|
please email coc@codeofchina.com for quotation
|
| JJG (电子) 12036-1991 |
|
 (USD) |
via email in
1-3 business day
|
VALID
|
|
| JJG 790-1992 |
standard Condenser Microphones |
 (USD) |
via email in
1-3 business day
|
ABOLISHED
|
|
| JJG 388-2001 |
Verification Regulation of Pure-tone Audiometers |
 (USD) |
via email in
1-5 business day
|
ABOLISHED
|
|
| GB/T 22159.5-2017 |
Acoustics and vibration—Laboratory measurement of vibro-acoustic transfer properties of resilient elements—Part 5:Driving point method for determination of the low-frequency transfer stiffness of resilient supports for translatory motion |
 (USD) |
via email in
1-3 business day
|
VALID
|
|
| GB/T 19889.5-2006 |
Acoustics―Measurement of sound insulation in buildings and of building elements―Part 5: Field measurements of airborne sound insulation of facade elements and facades |
|
via email in
1-3 business day
|
VALID
|
please email coc@codeofchina.com for quotation
|
| JJG 389-1985 |
Artificial Ears |
 (USD) |
via email in
1-3 business day
|
ABOLISHED
|
|
| GB/T 17248.4-1998 |
Acoustics--Noise emitted by machinery and equipment--Determination of emission sound pressure level at a workstation and at other specified position from the sound power level |
|
via email in
1-3 business day
|
VALID
|
please email coc@codeofchina.com for quotation
|
| GB/T 15611-1995 |
Acoustics－Calibration of high frequency hydrophone |
|
via email in
1-3 business day
|
VALID
|
please email coc@codeofchina.com for quotation
|
| GB/T 4854.7-2008 |
Acoustics - Reference zero for the calibration of audiometric equipment - Part 7: Reference threshold of hearing under free-field and diffuse-field listening conditions |
 (USD) |
via email in
1-3 business day
|
VALID
|
|
| JJG 790-2005 |
Verification Regulation of Laboratory Standard Microphones (Coupler Reciprocity Method) |
 (USD) |
via email in
1-3 business day
|
VALID
|
|
| GB/T 19889.2-2005 |
Acoustics-Measurement of sound insulation in buildings and of building elements-Part2:Determination,verification and application of precision data |
 (USD) |
via email in
1-3 business day
|
VALID
|
|
|
|
