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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
Protection against lightning—Part 2:Risk management
WITHDRAWN published on 24.4.2008
Selected format:Protection against lightning—Part 3:Physical damage to structures and life hazard
WITHDRAWN published on 24.4.2008
Selected format:Protection against lightning—Part 4:Electrical and electronic systems within structures
WITHDRAWN published on 24.4.2008
Selected format:Health informatics - Public key infrastructure(PKI) - Part 1: Overview of digital certificate services
WITHDRAWN published on 11.4.2008
Selected format:Health informatics - Public key infrastructure (PKI) - Part 2: Certificate profile
WITHDRAWN published on 11.4.2008
Selected format:Health informatics - Public key infrastructure - Part 3: Policy management of certification authority
WITHDRAWN published on 11.4.2008
Selected format:Technical specification about the type parameter and performance of small hydraulic turbines
WITHDRAWN published on 4.5.2008
Selected format:Fundamental technical requirements for small hydraulic turbines
WITHDRAWN published on 4.5.2008
Selected format:Fundamental technical requirementsfor small hydraulic turbines
WITHDRAWN published on 4.5.2008
Selected format:Determination of head rice yield of paddy
WITHDRAWN published on 4.5.2008
Selected format:Latest update: 2026-06-12 (Number of items: 2 281 969)
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