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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
Cranes—Anchoring devices for in-service and out-of-service conditions —Part 4: Jib cranes
WITHDRAWN published on 13.10.2016
Selected format:Bolts,screws and studs--Nominal lengths and thread lengths for general purpose bolts
WITHDRAWN published on 22.5.1982
Selected format:Self-igniting light for lifebuoy and self-activating smoke signal
WITHDRAWN published on 31.12.2008
Selected format:General specifications of pyrotechnic distress signals for ships
WITHDRAWN published on 22.5.1991
Selected format:Self-igniting light and orange smoke signal for lifebuoys
WITHDRAWN published on 22.5.1991
Selected format:Red flare parachute signal for ships
WITHDRAWN published on 22.5.1991
Selected format:Red star rocket signal for ships
WITHDRAWN published on 22.5.1991
Selected format:Marine white hand flare
WITHDRAWN published on 22.5.1991
Selected format:White flare parachute signal for ships
WITHDRAWN published on 22.5.1991
Selected format:Explosive shell signal for ships
WITHDRAWN published on 22.5.1991
Selected format:Latest update: 2026-04-22 (Number of items: 2 274 512)
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