GB 12340-1990
Replaced
GB 22021-2008
Active
National standards
force_standard
GB 22021-2008 Basic specifications for national geodesy
GB 22021-2008 Basic specifications for national geodesy
Basic Information
Standard Code:
GB 22021-2008
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
yes
CCS Name:
Geodetic and oceanographic mapping
ICS Name:
Astronomy, geodesy, and geography
Publish Date:
2008-06-20
Implement Date:
2008-12-01
Pages:
11 pages
Scope
This standard specifies the basic technical indicators and requirements for establishing and maintaining geodetic control networks, elevation control networks, and gravity control networks, and determining the apparent geoid in order to establish unified national geodetic reference systems, elevation reference systems, and corresponding depth reference systems and gravity reference systems for both land and sea areas. This standard applies to geodetic surveying activities conducted within the territory of the People's Republic of China and other maritime areas under its jurisdiction.
Development Information
Related Standards
GB 12341-1990
Replaced
GB 12341-1990 1:25000, 1:50000 and 1:100000 topographic maps—Specifications for aerophotogrammetric field work
GB/T 13605-1992
Abolished
GB/T 13605-1992 Coordinatograph
GB/T 13977-1992
Replaced
GB/T 13977-1992 Specifications for aerophotogrammetric field work 1:5000, 1:10000 topographic maps
GB/T 13989-1992
Replaced
GB/T 13989-1992 Subdivision and numbering for the national primary scale topographic maps
GB/T 13990-1992
Replaced