GB 12897-1991Specification for the first and second order leveling (English PDF)
国家一、二等水准测量规范
GB 12897 | Evolution and historical versions
| Std ID | Title | Status |
|---|---|---|
| GB/T 12897-2006 | Specifications for the first and second order leveling | Valid |
| GB 12897-1991 | Specification for the first and second order leveling | Obsolete |
GB 12897-1991 is obsolete. It has been replaced by GB/T 12897-2006. This page sells the obsolete edition, for projects and contracts that still cite it.
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Issued by
State Quality Technical Supervision Bureau
Level / Type
National · Mandatory
Issue date
May 5, 1991
Implementation date
January 1, 1992
Scope
GB 12897-1991 is the English-translated version of 国家一、二等水准测量规范.
GB 12897-1991 is the Chinese national standard "Specification for the first and second order leveling". It was issued on May 5, 1991 by the State Quality Technical Supervision Bureau, and took effect on January 1, 1992. It is obsolete: it has been replaced by GB/T 12897-2006.
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Document preview — GB 12897-1991
National Standard of the People's Republic of China
Issued by: State Quality Technical Supervision Bureau
Contents
- Document data
1 Document data
Sector: National standard (Mandatory).
Issuing body: State Quality Technical Supervision Bureau.
Date of issue: 1991-05-05.
Date of implementation: 1992-01-01.
Status: obsolete, replaced by GB/T 12897-2006.
......
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 12897-1991
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