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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
Ultimate analysis of coal
WITHDRAWN published on 1.1.1991
Selected format:Ultimate analysis of coal
WITHDRAWN published on 12.11.2001
Selected format:Measurement procedures for silencers
WITHDRAWN published on 1.1.1984
Selected format:Codes for family relationship
WITHDRAWN published on 26.11.1984
Selected format:Codes for political parties and groups
WITHDRAWN published on 26.11.1984
Selected format:Codes for personal class status
WITHDRAWN published on 26.11.1984
Selected format:Codes for class origin of family
WITHDRAWN published on 26.11.1984
Selected format:Codes for marriage conditions
WITHDRAWN published on 26.11.1984
Selected format:Codes for state of health
WITHDRAWN published on 26.11.1984
Selected format:Specification for mould-proof packaging
WITHDRAWN published on 1.1.1984
Selected format:Latest update: 2025-09-14 (Number of items: 2 232 183)
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