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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
Criteria and classification for assessment of general quality of harbour tugs and sea-going tugs
WITHDRAWN published on 1.1.1989
Selected format:Panama chocks
WITHDRAWN published on 10.8.1989
Selected format:Ship boom davits for general use
WITHDRAWN published on 1.1.1989
Selected format:Safety shackles of buoy
WITHDRAWN published on 1.1.1989
Selected format:-
WITHDRAWN published on 1.1.1989
Selected format:International user classes of service in, and categories of access to, public data networks and integrated services digital networks(ISDNs)
WITHDRAWN published on 2.8.1999
Selected format:Grease nipples and lubricating cups technical specification
WITHDRAWN published on 1.1.1989
Selected format:-
WITHDRAWN published on 1.1.1989
Selected format:International data transmission services and optional user facilities in public data networks and ISDNs
WITHDRAWN published on 2.8.1999
Selected format:Packet assembly/disassembly facility(PAD) in a public data network
WITHDRAWN published on 11.11.1999
Selected format:Latest update: 2026-01-22 (Number of items: 2 257 357)
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