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Standards GB are Chinese national standards, which are issued by China's Standardization Administration Office (SAC).
Chinese national standards are used all over China commonly labeled as GB standards. They determine the united production requirements regarding product safety and quality .
GB standards are often modified or created according to the international standards of ISO, IEC or any other international level.
Although, they are largely harmonized, GB standards may differ from international standards .
Approximately 15% of all GB standards are obligatory and they can be identified according to the prefix GB, after which the code of the standards follows:
GB – Obligatory national standards
GB/T – Optional national standards
GB/Z – National steering technical document
Preparation of documents used in electrotechnology—Part 1:General requirements
WITHDRAWN published on 25.12.1997
Selected format:Preparation of documents used in electrotechnology—Part 1:Rules
WITHDRAWN published on 24.3.2008
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WITHDRAWN published on 1.1.1986
Selected format:Preparation of documents used in electrotechnology—Part 2:Function-oriented diagrams
WITHDRAWN published on 25.12.1997
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WITHDRAWN published on 1.1.1986
Selected format:Preparation of documents used in electrotechnology—Part 3:Connection diagrams, tables and lists
WITHDRAWN published on 25.12.1997
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WITHDRAWN published on 1.1.1986
Selected format:Preparation of documents used in electrotechnology—Part 4:Location and installation documents
WITHDRAWN published on 22.2.2002
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WITHDRAWN published on 1.1.1986
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WITHDRAWN published on 1.1.1986
Selected format:Latest update: 2026-04-08 (Number of items: 2 271 105)
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