| 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 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 3785.2-2010 |
Electroacoustics—Sound level meters—Part 2:Pattern evaluation tests |
 (USD) |
via email in
1-3 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/T 15261-2008 |
Measurement methods for acoustic properties of ultrasonically tissue-mimicking materials |
 (USD) |
via email in
1-3 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
|
|
| GB/T 25102.8-2017 |
Electroacoustics—Hearing aids—Part 8:Methods of measurement of performance characteristicsof hearing aids under simulated in situ working conditions |
 (USD) |
via email in
1-3 business day
|
VALID
|
|
| GB 9706.9-2008 |
Medical electrical equipment - Part 2-37: Particular requirements for the safety of ultrasonic medical diagnostic and monitoring equipment |
 (USD) |
via email in
1-8 business day
|
VALID
|
|
| GB/T 25102.7-2017 |
Electroacoustics--Hearing aids--Part 7: Measurement of the performance characteristics of hearing aids for production, supply and delivery quality assurance purposes |
 (USD) |
via email in
1 business day
|
VALID
|
|
| GB/T 7341.5-2018 |
Electroacoustics—Audiometric equipment—Part 5:Instruments for the measurement of aural acoustic impedance/admittance |
 (USD) |
via email in
1-3 business day
|
VALID
|
|
| GB/T 25498.3-2010 |
Electroacoustics - Simulators of human head and ear - Part 3: Acoustic coupler for the calibration of supra-aural earphones used in audiometry |
 (USD) |
via email in
1-3 business day
|
VALID
|
|
| GB/T 25102.4-2010 |
Electroacoustics—Hearing aids—Part 4:Induction loop systems for hearing aid purposes—Magnetic field strength |
 (USD) |
via email in
1-5 business day
|
VALID
|
|
| YY/T 0850-2011 |
Guide for evaluation of uncertainty in measurement of ultrasonic diagnostic and monitoring equipment acoustic output characteristics |
 (USD) |
via email in
1-3 business day
|
VALID
|
|
| GB/T 25102.12-2018 |
Electroacoustics—Hearing aids—Part 12:Dimensions of electrical connector systems |
 (USD) |
via email in
1 business day
|
VALID
|
|
| YY/T 0642-2008 |
Ultrasonics - Field characterization -Test methods for the determination of thermal and mechanical indices related to medical diagnostic ultrasonic fields |
|
via email in
1-3 business day
|
ABOLISHED
|
please email coc@codeofchina.com for quotation
|
| GB/T 25102.2-2010 |
Electroacoustics—Hearing aids—Part 2:Hearing aids with automatic gain control circuits |
 (USD) |
via email in
1-3 business day
|
VALID
|
|
| GB/T 15173-2010 |
Electroacoustics—Sound calibrators |
 (USD) |
via email in
1-8 business day
|
VALID
|
|
| GB/T 20441.5-2017 |
Electroacoustics—Measurement microphones—Part 5:Methods for pressure calibration of workingstandard microphones by comparison |
 (USD) |
via email in
1-3 business day
|
VALID
|
|
| GB/T 20441.4-2006 |
Measurement microphones—Part 4: Specifications for working standard microphones |
 (USD) |
via email in
1-3 business day
|
VALID
|
|
|
|
