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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
Analytical methods for boiler water and cooling water—Determination of iron in prefilming liquid containing phosphorus and zinc—Sulphosalicylic acid spectrophotometry
WITHDRAWN published on 22.3.1989
Selected format:o-Anisidine
WITHDRAWN published on 1.1.1989
Selected format:Strontium carbonate for industrial use
WITHDRAWN published on 1.1.1989
Selected format:Fluorescent whitening agent VBL
WITHDRAWN published on 1.1.1989
Selected format:Fluorescent whitening agent VBL
WITHDRAWN published on 25.10.1996
Selected format:Fluorescent whitening agent VBL
WITHDRAWN published on 9.10.2003
Selected format:Disperse deep blue S-3BG
WITHDRAWN published on 9.6.2000
Selected format:Disperse dark blue S-3BG 200%(C.I.Disperse blue 79)
WITHDRAWN published on 28.11.2007
Selected format:Disperse dye--Testing method for migration property
WITHDRAWN published on 31.3.1989
Selected format:Disperse dyestuffs—Determination of migration property
WITHDRAWN published on 5.3.2003
Selected format:Latest update: 2026-04-06 (Number of items: 2 271 069)
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