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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
Glass Mosaic
WITHDRAWN published on 1.1.1987
Selected format:Sodium hydroxide for industrial use--Determination of carbonates content--Titrimetric method
WITHDRAWN published on 21.4.1987
Selected format:Sodium hydroxide for industrial use—Determination of carbonates content—Titrimetric method
WITHDRAWN published on 25.8.2003
Selected format:-
WITHDRAWN published on 1.1.1987
Selected format:Ramie
WITHDRAWN published on 17.5.1999
Selected format:Hexagon socket set screws with flat point
WITHDRAWN published on 1.1.1985
Selected format:-
WITHDRAWN published on 1.1.1985
Selected format:Hexagon socket set screws with flat point
WITHDRAWN published on 26.9.2000
Selected format:Bobbins for 16mm motion picture projectors--Dimentions
WITHDRAWN published on 20.4.1987
Selected format:Spindle for 16 mm motion picture projector reels—Dimensions
WITHDRAWN published on 31.5.2005
Selected format:Latest update: 2026-03-30 (Number of items: 2 269 988)
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