GB 12340-1990
Replaced
GB/T 20256-2019
Active
National standards
GB/T 20256-2019 Specifications for the gravimetry control
GB/T 20256-2019 Specifications for the gravimetry control
Price:
$ 93.00
Basic Information
Standard Code:
GB/T 20256-2019
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Geodetic and oceanographic mapping
ICS Name:
Astronomy, geodesy, and geography
Publish Date:
2019-03-25
Implement Date:
2019-10-01
Pages:
49 pages
Scope
This standard specifies the principles for establishing gravity control networks (points) across the country, absolute gravity measurement, relative gravity measurement, plane coordinate and elevation determination, data processing, and acceptance inspection of results, among other aspects.
This standard is applicable to the construction of national gravity control networks, and the measurement of reference points, basic points, first-order points, and corresponding tie points.
Development Information
Replace the following standards
Referenced Standards
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