| Standard No. |
Title |
Price(USD) |
Delivery |
Status |
Add To Cart |
| GBJ 87-1985 |
Specifications for the design of noise control system in industrial enterprises |
600 (USD) |
via email in
1-5 business day
|
|
|
| JJG 994-2004 |
Verification Regulation of Digital Audio Generators |
255 (USD) |
via email in
1-3 business day
|
VALID
|
|
| JJG 991-2004 |
Verification Regulation of Aural Impedance Audiometers |
345 (USD) |
via email in
1-3 business day
|
ABOLISHED
|
|
| GB/Z 27764-2011 |
Acoustics—Determination of sound transmission loss in impedance tubes—Transfer matrix method |
480 (USD) |
via email in
1-5 business day
|
VALID
|
|
| GBJ 122-1988 |
measurement of noise produced by industrial enterprises |
285 (USD) |
via email in
1-3 business day
|
VALID
|
|
|
|
