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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
Generic specification for camera tubes
WITHDRAWN published on 31.3.1989
Selected format:Blank detail specification for camera tubes
WITHDRAWN published on 31.3.1989
Selected format:-
WITHDRAWN published on 1.1.1982
Selected format:Aluminium piston—Reciprocating internal combustion engines—Technical specifications
WITHDRAWN published on 17.4.1993
Selected format:Internal combustion engines - Aluminium pistons - Specifications
WITHDRAWN published on 10.11.2010
Selected format:Methods of measurement for camera tubes
WITHDRAWN published on 31.3.1989
Selected format:General specification of mask alignment and exposure system
WITHDRAWN published on 1.1.1989
Selected format:Generic specification for AC plasma display devices
WITHDRAWN published on 31.3.1989
Selected format:Methods of measurement for AC plasma display devices
WITHDRAWN published on 31.3.1989
Selected format:Dimensions of reference gauges for cathode-ray tubes
WITHDRAWN published on 1.1.1989
Selected format:Latest update: 2026-01-23 (Number of items: 2 257 393)
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