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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 bio-taxonomic codes
WITHDRAWN published on 11.8.1999
Selected format:Guidelines for radiotherapy treatment rooms design
WITHDRAWN published on 11.8.1999
Selected format:The recording and exchange of broadcasting programs (magnetic tape sound recording)
WITHDRAWN published on 25.10.1979
Selected format:Determination of polyethylene glycol in polyethoxylated nonionic surfactants by HPLC
WITHDRAWN published on 12.8.1999
Selected format:Determination of silver in silver jewellery alloys—Volumetric (potentiometric) method using potassium bromide
WITHDRAWN published on 12.8.1999
Selected format:Silver jewellery alloys—Determination of silver—Volumetric(potentionmetric)method using potassium bromide
WITHDRAWN published on 31.12.2008
Selected format:General specification for water extinguishing agent series
WITHDRAWN published on 30.8.1999
Selected format:Clothes—Survey method for human body head round and size designation for headwear
WITHDRAWN published on 31.8.1999
Selected format:The specification for the ships"" auxiliary marine hydrology and metereological observations
WITHDRAWN published on 10.8.1999
Selected format:The methods of determining for the warning tidal level
WITHDRAWN published on 10.8.1999
Selected format:Latest update: 2025-09-08 (Number of items: 2 231 996)
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