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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
Specification for aerial photography of 1:500 1:1000 1:2000 scale topographic maps
WITHDRAWN published on 19.4.2005
Selected format:Quantities, units and symbols of fishing gear and materials for fishing gear
WITHDRAWN published on 23.10.1986
Selected format:Quantities,units and symbols of fishing gear and materials for fishing gear
WITHDRAWN published on 21.7.2006
Selected format:Fishing nets--Method of measure for mesh size
WITHDRAWN published on 23.10.1986
Selected format:Pre-tension for determination of the mesh size
WITHDRAWN published on 23.10.1986
Selected format:Types of synthetic diamond micropowder and cubic boron nitride micropowder
WITHDRAWN published on 1.11.1986
Selected format:Grain size and particle distribution of synthetic diamond micropowder and cubic boron nitride micropowder
WITHDRAWN published on 1.1.1986
Selected format:Checking method for particle distribution of synthetic diamond micropowder and cubic boron nitride micropowder
WITHDRAWN published on 1.1.1986
Selected format:Determination for impurities in synthetic diamond micropowder and cubic boron nitride micropowder
WITHDRAWN published on 1.1.1986
Selected format:Marking and packing for synthetic diamond micropowder and cubic boron nitride micropowder
WITHDRAWN published on 1.1.1986
Selected format:Latest update: 2026-06-21 (Number of items: 2 283 476)
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