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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
Technical drawings—Projection methods
WITHDRAWN published on 9.11.1993
Selected format:Nondestructive testing symbols for welds
WITHDRAWN published on 9.11.1993
Selected format:Plastics—Determination of compressive elastic modulus
WITHDRAWN published on 9.11.1993
Selected format:Bucket wheel stacker reclaimer—Types and basic parameters
WITHDRAWN published on 9.11.1993
Selected format:Bucket wheel stacker reclaimer—Type and basic parameters
WITHDRAWN published on 16.6.2011
Selected format:Bucket wheel stacker reclaimer—Type and basic parameters
WITHDRAWN published on 16.6.2011
Selected format:Code for the measurement of ship vibration
WITHDRAWN published on 9.11.1993
Selected format:Code for the measurement of local vibration of ship
WITHDRAWN published on 9.11.1993
Selected format:Method for the test of feed microscopy
WITHDRAWN published on 6.11.1993
Selected format:Test method of feed microscopy
WITHDRAWN published on 2.7.2002
Selected format:Latest update: 2026-05-15 (Number of items: 2 278 685)
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