GB 12898-1991Specifications for the third and fourth order leveling (English PDF)
国家三、四等水准测量规范
GB 12898 | Evolution and historical versions
| Std ID | Title | Status |
|---|---|---|
| GB/T 12898-2009 | Specifications for the third and fourth order leveling | Valid |
| GB 12898-1991 | Specifications for the third and fourth order leveling | Obsolete |
GB 12898-1991 is obsolete. It has been replaced by GB/T 12898-2009. This page sells the obsolete edition, for projects and contracts that still cite it.
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Issued by
China State Bureau of Technical Supervision
Level / Type
National · Mandatory
Issue date
May 5, 1991
Implementation date
January 1, 1992
Scope
GB 12898-1991 is the English-translated version of 国家三、四等水准测量规范.
GB 12898-1991 is the Chinese national standard "Specifications for the third and fourth order leveling". It was issued on May 5, 1991 by the China State Bureau of Technical Supervision, and took effect on January 1, 1992. It is obsolete: it has been replaced by GB/T 12898-2009.
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Document preview — GB 12898-1991
National Standard of the People's Republic of China
Issued by: China State Bureau of Technical Supervision
Contents
- Document data
1 Document data
Sector: National standard (Mandatory).
Issuing body: China State Bureau of Technical Supervision.
Date of issue: 1991-05-05.
Date of implementation: 1992-01-01.
Status: obsolete, replaced by GB/T 12898-2009.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — all pages — is available in the English PDF.
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GB 12898-1991
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