| Standard No. |
Title |
Price(USD) |
Delivery |
Status |
Add to Cart |
| GB 11450.4-1989 |
Hollow metallic waveguides-Part 4: Relevant specifications for circular waveguides |
$90.00 |
via email in 1~3 business day |
valid,,1990-3-1 |
|
| GB 11450.5-1989 |
Hollow metallic waveguides Part 6: Relevant specifications for medium flat rectangulare waveguides |
$30.00 |
via email in 1~3 business day |
valid,,1990-3-1 |
|
| GB 11450.6-1989 |
Hollow metallic waveguides Part 7: Relevant specifications for square waveguides |
$45.00 |
via email in 1~3 business day |
valid,,1990-3-1 |
|
| GB 11451-1989 |
Flexible waveguide assembly performance |
$150.00 |
via email in 1~3 business day |
valid,,1990-3-1 |
|
| GB 11604-1989 |
Test methods for measuring radio interference from high voltage equipment |
$60.00 |
immediately |
abolished2016-04-01,2016-4-1,1990-3-1 |
|
| GB 12021.7-1989 |
The limited value and testing method of electrical energy consumption for broadcasting receiver of colour and monochromic television |
$224.00 |
via email in 1~3 business day |
abolished2006-03-01,2006-3-1,1990-1-2 |
|
| GB 12021.7-2005 |
Limited values of energy efficiency and evaluating values of energy conservation for color television broadcasting receivers |
$150.00 |
via email in 1~3 business day |
abolished2017-03-23 ,,2006-3-1 |
|
| GB 12021.8-1989 |
The limited value of efficiency and methods of measurement on radio receivers and recorder |
$180.00 |
via email in 1~3 business day |
abolished2005-10-14 ,,1990-12-1 |
|
| GB 12048-1989 |
Requirements for clock and synchronization equipment used in the digital network |
$100.00 |
via email in 1~3 business day |
valid,,1990-7-1 |
|
| GB 12062-1989 |
Minimum performance requirements on high fidelity audio combination equipment |
$225.00 |
via email in 1~3 business day |
abolished2014-07-15,2014-7-15,1990-7-1 |
|
| GB 12120-1989 |
General specification of primary enroute surveillance radar for air traffic control |
$180.00 |
via email in 1~3 business day |
abolished2005-10-14,,1990-7-1 |
|
| GB 12183-1990 |
General specification of airborne transponders for air traffic control |
$180.00 |
via email in 1~3 business day |
abolished2019-01-01,2019-1-1,1990-8-1 |
|
| GB 12189-1990 |
General specification for television broadcasting exciter |
$150.00 |
via email in 1~3 business day |
abolished2017-12-15,,1990-8-1 |
|
| GB 12269-1990 |
Generic specification for radio-frequency cables |
$180.00 |
via email in 1~3 business day |
abolished2014-06-15,2014-6-15,1990-10-1 |
|
| GB 12281-1990 |
Requirements for the interconnections and matching of color television broadcast receivers and other equipment |
$90.00 |
via email in 1~3 business day |
abolished2017-12-15,,1990-10-1 |
|
| GB 12323-1990 |
Technical requirements of compatibility for television receivers with cable distribution systems |
$60.00 |
via email in 1~3 business day |
abolished2005-10-14,,1990-1-2 |
|
| GB 12338-1990 |
Methods of measurement for monochrome universal CCTV camera |
$60.00 |
via email in 1~3 business day |
abolished2018-05-01,2018-5-1,1990-12-1 |
|
| GB 12401-1990 |
Specification of antenna (including feed network) and servo system used in domestic satellite communication earth stations |
$165.00 |
via email in 1~3 business day |
valid,,1991-5-1 |
|
| GB 12449-1990 |
Interface for using dedicated interconnections between sound and television broadcasting transmitting equipment and supervisory equipment |
$180.00 |
via email in 1~3 business day |
valid,,1991-5-1 |
|
| GB 12498-1990 |
Generic specification of rubidium frequency standards |
$90.00 |
via email in 1~3 business day |
abolished2013-06-01,2013-6-1,1991-5-1 |
|
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