GB/T 131-1993
Replaced
LY/T 1821-2009
Active
Industry standards-Forestry
LY/T 1821-2009 Cartographic symbols for forestry maps
LY/T 1821-2009 Cartographic symbols for forestry maps
Basic Information
Standard Code:
LY/T 1821-2009
Standard Type:
Industry standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
Basic standards and general methods
ICS Name:
Comprehensive Technical Drawing
Publish Date:
2009-06-18
Implement Date:
2009-10-01
Pages:
96 pages
Scope
This standard specifies the grades, specifications, and colors of various land features, topographic elements, and annotations used in forestry mapping, as well as the basic methods of their application. This standard is applicable to the mapping of topographic maps, forestry surveys, planning and design, and the compilation of geographic base maps in forestry work.
Development Information
Referenced Standards
Related Standards
GB/T 16675.1-1996
Replaced
GB/T 16675.1-1996 Technical drawings—Simplified representation—Part 1:Pictorial presentation
GB/T 16675.2-1996
Replaced
GB/T 16675.2-1996 Technical drawings—Simplified representation—Part 2:Dimensioning
GB/T 16949-1997
Abolished
GB/T 16949-1997 Templates for lettering and symbols—General principles, identification markings and the size of the slot widths
GB/T 4459.3-2000
Active
GB/T 4459.3-2000 Mechanical drawings—Representation of splines
GB/T 18594-2001
Active