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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
Oceanographic terminology—Physical oceanography
WITHDRAWN published on 20.12.1995
Selected format:Oceanographic terminology—Marine chemistry
WITHDRAWN published on 20.12.1995
Selected format:Method for chemical analysis of cobalt ores—Determination of cobalt content—Flame atomic absorption spectrometric method
WITHDRAWN published on 20.12.1995
Selected format:Method for chemical analysis of nickel ores—Determination of nickel content—Flame atomic absorption spectrometric method
WITHDRAWN published on 20.12.1995
Selected format:Method for chemical analysis of tin ores—Determination of tin content—Iodometric method
WITHDRAWN published on 20.12.1995
Selected format:Method for chemical analysis of antimony ores—Determination of antimony content—Cerimetric titration
WITHDRAWN published on 20.12.1995
Selected format:Method for chemical analysis of bismuth ores—Determination of bismuth content—EDTA complexometric titration
WITHDRAWN published on 20.12.1995
Selected format:Method for chemical analysis of arsenic ores—Determination of arsenic content—Iodimetric method after pre-separation by fusion
WITHDRAWN published on 20.12.1995
Selected format:Determination method of residual styrene monomer contents in reinforced plastics based on unsaturated polyester
WITHDRAWN published on 20.12.1995
Selected format:Determination of the minimum ignition energy of dust cloud. A method of dust-falling for double-deck shaking sieve (integrated calculation of energy)
WITHDRAWN published on 20.12.1995
Selected format:Latest update: 2025-11-10 (Number of items: 2 243 715)
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