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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
Workplace air—Determination of tin and its inorganic compounds—Flame atomic absorption spectroscopy
WITHDRAWN published on 11.11.1997
Selected format:Workplace air—Determination of antimony and its compounds—Flame atomic absorption spectroscopy
WITHDRAWN published on 11.11.1997
Selected format:Workplace air—Determination of methyl mercaptan—Gas chromatography method
WITHDRAWN published on 11.11.1997
Selected format:Workplace air—Determination of 1,1-dimethylhydrazine—Gas chromatographic method
WITHDRAWN published on 11.11.1997
Selected format:Workplace air—Determination of diethylamine—Gas chromatographic method
WITHDRAWN published on 11.11.1997
Selected format:Workplace air-Determination of arsenic trioxide-Atomic absorption spectrometric method
WITHDRAWN published on 11.11.1997
Selected format:Workplace air—Determination of formic acid—Gas chromatographic method
WITHDRAWN published on 11.11.1997
Selected format:Workplace air—Determination of propionic acid—Gas chromatographic method
WITHDRAWN published on 11.11.1997
Selected format:Lithopone
WITHDRAWN published on 1.1.1986
Selected format:Lithopone
WITHDRAWN published on 21.12.1995
Selected format:Latest update: 2025-11-14 (Number of items: 2 243 651)
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