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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
Aromatics—Determination of carbonyl value and carbonyl compounds content—Free hydroxylamine method
WITHDRAWN published on 5.6.1993
Selected format:Aromatics—Method for valuation of odor
WITHDRAWN published on 5.6.1993
Selected format:Aromatics--Method for determination of colour
WITHDRAWN published on 5.6.1993
Selected format:Aromatics—Determination of refractive index
WITHDRAWN published on 5.6.1993
Selected format:Aromatics—Determination of optical rotation
WITHDRAWN published on 5.6.1993
Selected format:Aromatics—Quantitative evaluation of residue on evaporation
WITHDRAWN published on 5.6.1993
Selected format:Aromatics—Determination of freezing point
WITHDRAWN published on 5.6.1993
Selected format:Aromatics—Determination of cineol content—o-Cresol freezing point method
WITHDRAWN published on 5.6.1993
Selected format:Aromatics—Determination of safrole content—Freezing point method
WITHDRAWN published on 5.6.1993
Selected format:Essential oils—Principles of nomenclature
WITHDRAWN published on 5.6.1993
Selected format:Latest update: 2026-04-10 (Number of items: 2 271 455)
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