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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
Classification of dense shaped refractory products—Alumina-silica
WITHDRAWN published on 8.5.2008
Selected format:Refractory materials—Determination of thermal conductivity—Hot-wire method(parallel)
WITHDRAWN published on 11.11.1997
Selected format:Technical directives for the division of marine functional zonation
WITHDRAWN published on 12.11.1997
Selected format:Consumer pack of grain
WITHDRAWN published on 12.11.1997
Selected format:Requirement for store""s shopping environment and marketing installation
WITHDRAWN published on 12.11.1997
Selected format:Requirements for store""s shopping environments and facilities
WITHDRAWN published on 30.12.2008
Selected format:Cutting tools—Designation of high-speed steel groups
WITHDRAWN published on 13.11.1997
Selected format:Spot drills
WITHDRAWN published on 13.11.1997
Selected format:Technical requirements and measuring mehods for cordless telephone sets access to PSTN
WITHDRAWN published on 25.11.1997
Selected format:Requirement for 160kbit/s subscriber line digital multigain equipment joined to national public telecommunication network
WITHDRAWN published on 25.11.1997
Selected format:Latest update: 2026-04-21 (Number of items: 2 274 412)
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