| Standard No. |
Title |
Price(USD) |
Delivery |
Status |
Add To Cart |
| GB/T 25498.5-2017 |
Electroacoustics--Simulators of human head and ear--Part 5: 2 cm3 coupler for the measurement of hearingaids and earphones coupled to the ear by means of ear inserts |
 (USD) |
via email in
1 business day
|
VALID
|
|
| GB/T 21231.1-2018 |
Acoustics—Measurement of airborne noise emitted andstructure-borne vibration induced by small air-moving devices—Part 1:Airborne noise measurement |
 (USD) |
via email in
1-5 business day
|
VALID
|
|
| JJG (民航) 002-1994 |
|
 (USD) |
via email in
1-3 business day
|
VALID
|
|
| JJG 529-1988 |
Randon Vibration Test System |
 (USD) |
via email in
1-3 business day
|
ABOLISHED
|
|
| GB/T 17248.5-2018 |
Acoustics—Noise emitted by machinery and equipment—Determination of emission sound pressure levels at a work station and at other specified positions applying accurate environmental corrections |
 (USD) |
via email in
1-5 business day
|
VALID
|
|
| GB/T 21231-2007 |
Acoustics - Method for the measurement of airborne noise emitted by small air-moving devices |
|
via email in
1-3 business day
|
ABOLISHED
|
please email coc@codeofchina.com for quotation
|
| GB/T 20441.6-2017 |
Electroacoustics—Measurement microphones—Part 6:Electrostatic actuators for determination of frequency response |
 (USD) |
via email in
1-3 business day
|
VALID
|
|
| GB/T 4854.6-2014 |
Acoustics—Reference zero for the calibration of audiometric equipment—Part 6:Reference hearing threshold levels for test signals of short duration |
 (USD) |
via email in
1-3 business day
|
VALID
|
|
| GB/T 3785.2-2010 |
Electroacoustics—Sound level meters—Part 2:Pattern evaluation tests |
 (USD) |
via email in
1-3 business day
|
VALID
|
|
| GB/T 17248.2-2018 |
Acoustics—Noise emitted by machinery and equipment—Determination of emission sound pressure levels at a work station and at other specified positions in an essentially free field over a reflecting plane with negligible environmental corrections |
 (USD) |
via email in
1-5 business day
|
VALID
|
|
| JJF 1269-1990 |
O.T.N. of the Primary Standard for the Sound Pressure of Reciprocity Technique |
 (USD) |
via email in
1 business day
|
VALID
|
|
| GB/T 3769-2010 |
Electroacoustics - Scales and sizes for plotting frequency characteristics and polar diagrams |
 (USD) |
via email in
1-3 business day
|
VALID
|
|
| GB/T 3785.1-2010 |
Electroacoustics—Sound level meters—Part 1:Specifications |
 (USD) |
via email in
1-5 business day
|
VALID
|
|
| GB/Z 21233-2007 |
Acoustics - Assessment of noise annoyance by means of social and socio-acoustics surveys |
 (USD) |
via email in
1-3 business day
|
VALID
|
|
| GB/T 35426.1-2017 |
Acoustics―Determination of dynamic stiffness―Part 1:Materials used under floating floors in dwellings |
 (USD) |
via email in
1 business day
|
VALID
|
|
| GB/T 7341.1-2010 |
Electroacoustics—Audiological equipment—Part 1:Pure-tone audiometers |
 (USD) |
via email in
1-3 business day
|
VALID
|
|
| JJG 1019-2007 |
Verification Regulation of Working Standard Microphones (Coupler Comparison Method) |
 (USD) |
via email in
1-3 business day
|
VALID
|
|
| GB/T 14368-1993 |
Acoustics－STANDARD ultrasonic power source |
|
via email in
1-3 business day
|
VALID
|
please email coc@codeofchina.com for quotation
|
| JJG 175-1998 |
Verification Regulation of Measuring Condenser Microphones |
 (USD) |
via email in
1-3 business day
|
ABOLISHED
|
|
| GB/T 22159.2-2012 |
Acoustics and vibration—Laboratory measurement of vibro-acoustic transfer properties of resilient elements—Part 2:Direct method for determination of the dynamic stiffness of resilient supports for translatory motion |
 (USD) |
via email in
1-3 business day
|
VALID
|
|
|
|
