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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
Leveling agent O
WITHDRAWN published on 1.1.1988
Selected format:Dispersing agent MF
WITHDRAWN published on 1.1.1988
Selected format:Dispersing agent N
WITHDRAWN published on 1.1.1988
Selected format:Floor hinges
WITHDRAWN published on 1.1.1988
Selected format:Bolts for side hung aluminium alloy doors
WITHDRAWN published on 1.1.1988
Selected format:Fasteners for side hung aluminium alloy windows
WITHDRAWN published on 1.1.1988
Selected format:Casement stays for aluminium alloy window
WITHDRAWN published on 1.1.1988
Selected format:Specifications for construction and acceptance of industrial automation instrumentation
WITHDRAWN published on 1.1.1986
Selected format:Stainless steel friction stays for aluminium windows
WITHDRAWN published on 1.1.1988
Selected format:Handles for aluminium alloy doors and windows
WITHDRAWN published on 1.1.1988
Selected format:Latest update: 2026-03-13 (Number of items: 2 266 261)
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