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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
Marine atmosphere condenser
WITHDRAWN published on 1.1.1989
Selected format:Quality classification of electro-hydraulic servo valve for ship
WITHDRAWN published on 1.1.1989
Selected format:General specification of electro-hydraulic servo valve for ship
WITHDRAWN published on 31.3.1989
Selected format:Three pointer type ship clinometer
WITHDRAWN published on 1.1.1989
Selected format:General specifications of marine autopilot with magnetic compass
WITHDRAWN published on 31.3.1989
Selected format:Ship steel dog steps
WITHDRAWN published on 1.1.1989
Selected format:General specification for marine hardwares
WITHDRAWN published on 1.1.1989
Selected format:Cast aluminium-silicon alloys--Modification
WITHDRAWN published on 1.1.1989
Selected format:Cast aluminium-silicon alloys--Burning
WITHDRAWN published on 1.1.1989
Selected format:Cast aluminium alloys--Pinhole
WITHDRAWN published on 1.1.1989
Selected format:Latest update: 2026-04-05 (Number of items: 2 271 011)
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