GB/T 13989-2012
ActiveSubdivision and numbering for the national primary scale topographic maps
国家基本比例尺地形图分幅和编号
Application Summary AI generated
This standard specifies the rules for subdividing and numbering topographic maps at China's national primary scales, such as 1:500,000, 1:250,000, and 1:10,000. It is applied by mapping agencies, surveyors, and GIS professionals to ensure consistent map sheet identification and organization across the country. The standard is essential for managing, cataloging, and referencing large-scale topographic map series used in land planning, infrastructure development, and geographic information systems.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.