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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
Detail specification for electronic component--Ambient-rated bipolar transistors for low and high-frequency amplification type 3CG21B, 3CG21C
WITHDRAWN published on 1.1.1986
Selected format:Detail specification for electronic component--Ambient-rated bipolar transistors for low and high-frequency amplification type 3CX201A, 3CX201B, 3CX201C
WITHDRAWN published on 1.1.1986
Selected format:Detail specification for electronic component--Ambient-rated bipolar transistors for low and high-frequency amplification type 3DX201A, 3DX201B, 3DX201C
WITHDRAWN published on 1.1.1986
Selected format:Terms for glass in electronic techniques
WITHDRAWN published on 1.1.1986
Selected format:Designation method for glass in electronic techniques
WITHDRAWN published on 1.1.1986
Selected format:Chemical reagents;Sodium nitrate
WITHDRAWN published on 1.9.1992
Selected format:Specification for laser radiation power and energy measuring equipment
WITHDRAWN published on 1.1.1986
Selected format:-
WITHDRAWN published on 1.1.1986
Selected format:Frequency response of telephone set
WITHDRAWN published on 1.1.1986
Selected format:Electromagnetic environment requirements for aeronautical radionavigation stations
WITHDRAWN published on 6.5.1986
Selected format:Latest update: 2026-04-16 (Number of items: 2 272 849)
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