Standard No.:	GB 12343-1990
English Name:	Compilation specifications for 1: 25000, 1: 50000 topographic maps
Chinese Name:	1:25000、1:50000地形图编绘规范
Chinese Classification:	A79    Map printing
Professional Classification:	GB    National Standard
Issued by:	SQTSB
Issued on:	1990-06-04
Implemented on:	1990-12-1
Status:	abolished
Superseded by:	GB/T 12343.1-2008 Compilation specifications for national fundamental scale maps - Part 1:compilation specifications for 1:25 000 1:50 000 1:100 000 topographic maps
Superseded on:	2008-12-1
Abolished on:	2008-12-01
Language:	English
File Format:	PDF
Word Count:	9500 words
Price(USD):	280.00
Delivery:	via email in 1~3 business day

本标准规定了编绘1：250 00、1：50 000国家基本比例尺地形图的数学基础、精度、编辑工作、技术方法和地图内容各要素的综合指标。
本标准适用于国民经济建设各部门编绘1 : 25 000,1 : 50 000地形图。编绘专题地图的地理底图，亦可参照使用。