GB/T 12898-2009: Specifications for the third and fourth order leveling

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Scope

This standard specifies the principles for the establishment of the third and
fourth order leveling network, leveling methods, precision indicators and
technical requirements.
This standard applies to the deployment of the third and fourth order leveling
network.

Basic Data

Standard ID	GB/T 12898-2009 (GB/T12898-2009)
Description (Translated English)	Specifications for the third and fourth order leveling
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	A76
Classification of International Standard	07.040
Word Count Estimation	66,687
Date of Issue	2009-05-06
Date of Implementation	2009-10-01
Older Standard (superseded by this standard)	GB 12898-1991
Quoted Standard	GB/T 3161; GB/T 10156; GB/T 12897-2006; GB/T 16818; CH/T 1001; CH 1002; CH 1003; CH/T 1004; CH/T 2004; CH/T 2006; JJG 8; JJG 425; JJG 414; JJG 703; JJF 1118
Regulation (derived from)	Announcement of Newly Approved National Standards No. 6, 2009 (No. 146 overall)
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary	This standard specifies the establishment of three, four leveling network layout principles, sampling methods, precision indicators and technical requirements. This standard applies to three, four, etc. measured level net cloth.