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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
Dental rotary instruments--Nominal sizes and designation
WITHDRAWN published on 1.1.1985
Selected format:Code for construction of oil and gas transmission pipeline aerial crossing engineering
WITHDRAWN published on 1.1.2008
Selected format:Code for construction and acceptance of electronic information system room
WITHDRAWN published on 12.11.2008
Selected format:Code for construction and acceptance of electronic information system room
WITHDRAWN published on 1.1.2015
Selected format:Code for design of vibration isolation
WITHDRAWN published on 27.11.2008
Selected format:Code for design of heating ventilation and air conditioning of coal industry
WITHDRAWN published on 27.11.2008
Selected format:Code for design of environmental protection of rubber factory
WITHDRAWN published on 1.1.2008
Selected format:Dental hand pieces--Coupling dimensions
WITHDRAWN published on 1.1.1985
Selected format:Seismic technical code for oil and gas transmission pipeline engineering
WITHDRAWN published on 27.11.2008
Selected format:Code for design of the gas drainage engineering of coal mine
WITHDRAWN published on 1.1.2008
Selected format:Latest update: 2025-12-29 (Number of items: 2 253 390)
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