GB 7231-1987Basic identification colours and code indications for industrial pipelines (English PDF)
工业管路的基本识别色和识别符号
GB 7231 | Evolution and historical versions
| Std ID | Title | Status |
|---|---|---|
| GB 7231-2003 | Basic indentification colors and code indications and safety sign for industrial pipelines | Obsolete |
| GB 7231-1987 | Basic identification colours and code indications for industrial pipelines | Obsolete |
GB 7231-1987 is obsolete. It has been replaced by GB 7231-2003. This page sells the obsolete edition, for projects and contracts that still cite it.
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Issued by
National Bureau of Standards
Level / Type
National · Mandatory
Issue date
February 4, 1987
Implementation date
October 1, 1987
Scope
GB 7231-1987 is the English-translated version of 工业管路的基本识别色和识别符号.
GB 7231-1987 is the Chinese national standard "Basic identification colours and code indications for industrial pipelines". It was issued on February 4, 1987 by the National Bureau of Standards, and took effect on October 1, 1987. It is obsolete: it has been replaced by GB 7231-2003.
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Document preview — GB 7231-1987
National Standard of the People's Republic of China
Issued by: National Bureau of Standards
Contents
- Document data
1 Document data
Sector: National standard (Mandatory).
Issuing body: National Bureau of Standards.
Date of issue: 1987-02-04.
Date of implementation: 1987-10-01.
Status: obsolete, replaced by GB 7231-2003.
......
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 7231-1987
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