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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
Chemical reagent—Formaldehyde solution
WITHDRAWN published on 1.3.1993
Selected format:Labeling of containers for unexposed motion-picture film--Minimum information specifications
WITHDRAWN published on 6.9.1986
Selected format:pH Basic line General rules for certification
WITHDRAWN published on 20.10.1986
Selected format:pH Basic line--Calcium hydroxide
WITHDRAWN published on 1.1.1986
Selected format:pH Basic line Potassium dihydrogen phosphate
WITHDRAWN published on 20.10.1986
Selected format:pH Basic line Disodium hydrogen phosphate
WITHDRAWN published on 20.10.1986
Selected format:pH Basic line--Potassium tetroxalate
WITHDRAWN published on 1.1.1986
Selected format:pH Basic line-Sodium tetraborate decahydrate
WITHDRAWN published on 20.10.1986
Selected format:pH Basic line Potassium hydrogen phthalate
WITHDRAWN published on 20.10.1986
Selected format:pH Basic line--Potassium hydrogen tartrate
WITHDRAWN published on 1.1.1986
Selected format:Latest update: 2026-04-10 (Number of items: 2 271 455)
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