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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
General specification for marinesatellite-omega integrated navigator
WITHDRAWN published on 20.6.1988
Selected format:STZ3 type connector for electronic measurement instrument
WITHDRAWN published on 17.6.1988
Selected format:-
WITHDRAWN published on 1.1.1988
Selected format:Potassium silicate solution for use in electronic industry-Generality for analytical methods
WITHDRAWN published on 1.1.1988
Selected format:Potassium silicate solution for use in electronic industry--The methods of determination for potassium carbonate
WITHDRAWN published on 1.1.1988
Selected format:Potassium silicate solution for use in electronic industry--The methods of determination for total alkalinity
WITHDRAWN published on 1.1.1988
Selected format:Potassium silicate solution for use in electronic industry--The methods of determination for silica content
WITHDRAWN published on 1.1.1988
Selected format:Potassium silicate solution for use in electronic industry--The methods of calculation for concenfration and modulus
WITHDRAWN published on 1.1.1988
Selected format:Potassium silicate solution for use in electronic industry--The methods of determination for iron
WITHDRAWN published on 1.1.1988
Selected format:Potassium silicate solution for use in electronic industry--The methods of determination for copper
WITHDRAWN published on 1.1.1988
Selected format:Latest update: 2026-03-13 (Number of items: 2 266 261)
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