We need your consent to use the individual data so that you can see information about your interests, among other things. Click "OK" to give your consent.
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—Preparation of standard solution, test solution and indicator solution
WITHDRAWN published on 5.6.1993
Selected format:Oil of sassafras—Determination of safrole and isosafrole content—Gas chromatographic method on packed columns
WITHDRAWN published on 5.6.1993
Selected format:Oil of sassafras—Determination of safrole and isosafrole content—Gas chromatographic method on packed columns
WITHDRAWN published on 15.7.2008
Selected format:Aromatics—Determination of carbonyl value and carbonyl compounds content—Hydroxylammonium chloride method
WITHDRAWN published on 5.6.1993
Selected format: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WITHDRAWN published on 5.6.1993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WITHDRAWN published on 5.6.1993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WITHDRAWN published on 5.6.1993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WITHDRAWN published on 5.6.1993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WITHDRAWN published on 5.6.1993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WITHDRAWN published on 5.6.1993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:Latest update: 2026-06-11 (Number of items: 2 281 927)
© Copyright 2026 NORMSERVIS s.r.o.