| Standard No. |
Title |
Price(USD) |
Delivery |
Status |
Add To Cart |
| GB/T 12060.16-2017 |
Sound system equipment—Part 16:Objective rating of speech intelligibility by speech transmission index |
 (USD) |
via email in
1-8 business day
|
VALID
|
|
| JJG 2038-1989 |
Measuring Instruments for Audiometry |
 (USD) |
via email in
1-3 business day
|
ABOLISHED
|
|
| GB/T 20441.2-2018 |
Electroacoustics—Measurement microphones—Part 2:Primary method for pressure calibration of laboratory standard microphones by the reciprocity technique |
 (USD) |
via email in
1-5 business day
|
VALID
|
|
| GB/T 4854.5-2008 |
Acoustics - Reference zero for the calibration of audiometric equipment- Part 5: Reference equivalent threshold sound pressure levels for pure tone in the frequency range 8 kHz to 16 kHz |
 (USD) |
via email in
1-3 business day
|
VALID
|
|
| JJF 1167-2007 |
Calibration Specification for Psophometers |
 (USD) |
via email in
1-3 business day
|
VALID
|
|
| GB/T 16407-1996 |
Acoustics—Characteristics and measurements of field of pressure pulse lithotripters |
|
via email in
1-3 business day
|
ABOLISHED
|
please email coc@codeofchina.com for quotation
|
| GB/T 15485-1995 |
Acoustics－Methods for the calculation of the articulation index of speech |
|
via email in
1-3 business day
|
ABOLISHED
|
please email coc@codeofchina.com for quotation
|
| JJG 699-1990 |
Integrating Soune level Meters |
 (USD) |
via email in
1-3 business day
|
ABOLISHED
|
|
| JJF 1165-2007 |
Calibration Specification for SINAD Meters |
 (USD) |
via email in
1-3 business day
|
VALID
|
|
| JJG 994-2004 |
Verification Regulation of Digital Audio Generators |
 (USD) |
via email in
1-3 business day
|
VALID
|
|
| GB/T 20441.1-2010 |
Electroacoustics - Measurement microphones - Part 1: Specifications for laboratory standard microphones |
 (USD) |
via email in
1-3 business day
|
VALID
|
|
| JJF 1147-2006 |
Calibration Specfication for Acoustic Performance of Anechoic Rooms and Hemi-anechoic Rooms |
 (USD) |
via email in
1-3 business day
|
VALID
|
|
| JJG (民航) 0080-2005 |
Verification Regulation of Model 01-0328-00 IDENT TONE GENERATOR |
 (USD) |
via email in
1-3 business day
|
VALID
|
|
| GB/T 18696.2-2002 |
Acoustics--Determinatio of sound absorption coefficient and impedance in impedance tubes--Part 2:Transfer function method |
|
via email in
1-3 business day
|
VALID
|
please email coc@codeofchina.com for quotation
|
| JJG (船舶) 7-1991 |
|
|
via email in
|
VALID
|
please email coc@codeofchina.com for quotation
|
| JJF 1034-1992 |
Metrological Terms For Acoustics |
 (USD) |
via email in
1-3 business day
|
ABOLISHED
|
|
| GB/T 7341.4-1998 |
Audiometers-Part 4 : Equipment for extended high-frequency audiometry |
|
via email in
1-3 business day
|
VALID
|
please email coc@codeofchina.com for quotation
|
| GB/T 16402-1996 |
Acoustics-Reference equivalent threshold sound pressure levels for pure tones and insert earphones |
|
via email in
1-3 business day
|
VALID
|
please email coc@codeofchina.com for quotation
|
| GB/T 4854.1-2004 |
Acoustics?Reference zero for the calibration of audiometric equipment?Part 1:Reference equivalent threshold sound pressure levels for pure tones and supra-aural earphones |
|
via email in
1-3 business day
|
VALID
|
please email coc@codeofchina.com for quotation
|
| JJG 394-1997 |
Verification regulation of ultrasonic source for ultrasonic doppler fetal monitor |
 (USD) |
via email in
1-3 business day
|
VALID
|
|
|
|
