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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
Microprocessor system bus - 8-bit and 16-bit data (MULTIBUS ) - Part 2: Mechanical and pin descriptions for the system bus configuration, with edge connectors(direct)
Standard published on 6.8.2008
Selected format:Microprocessor system bus - 8-bit and 16-bit data (MULTIBUS ) - Part 3: Mechanical and pin descriptions for the Eurocard configuration with pin and socket (indirect) connectors
Standard published on 6.8.2008
Selected format:Slotted set screws with long dog point
Standard published on 28.12.2018
Selected format:Test method for autoclave expansion of cement
Standard published on 26.10.2024
Selected format:Blank detail specification for microprocessor semiconductor integrated circuits
Standard published on 25.3.1987
Selected format:Valves for liquefied petroleum gas cylinders
Standard published on 27.11.2023
Selected format:Conversion between the 7-bit coded character set for information processing interchange and the 5-unit code for the telegraph service
Standard published on 27.3.1987
Selected format:Information processing--Coding of machine readable characters (MICR and OCR)
Standard published on 24.3.1987
Selected format:Micrographics - Graphical symbols for use in microfilming
Standard published on 30.12.2008
Selected format:Micrographics--Microfilming for ancient books on 16mm roll film
Standard published on 15.3.2004
Selected format:Latest update: 2026-06-10 (Number of items: 2 281 585)
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