GB 12898-1991
Specifications for the third and fourth order leveling (English Version)

Standard No.

GB 12898-1991

Language

Chinese, Available in English version

Release Date

1991

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Status

Be replaced 2009-10

Replace By

GB/T 12898-2009

Latest

GB/T 12898-2009

Scope

This standard stipulates the layout principles, surveying methods and accuracy indicators for establishing the third and fourth grade leveling networks. This standard applies to the deployment and testing of the third and fourth grade leveling nets.

GB 12898-1991 history

• 2009 GB/T 12898-2009 Specifications for the third and fourth order leveling
• 1991 GB 12898-1991 Specifications for the third and fourth order leveling

GB 12898-1991 Specifications for the third and fourth order leveling was changed to GB/T 12898-2009 Specifications for the third and fourth order leveling.