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
Chemical reagents;Ammonium thiocyanate
WITHDRAWN published on 1.9.1992
Selected format:Cracking C4 fraction for industrial use--Determination of hydrocarbon components--Gas chromatographic method
WITHDRAWN published on 1.1.1986
Selected format:Cracking C4 fraction for industrial use--Sampling in the liquid phase
WITHDRAWN published on 1.1.1986
Selected format:-
WITHDRAWN published on 1.1.1989
Selected format:Liquefied petroleum gases--Determination of vapour pressure--LPG method
WITHDRAWN published on 28.3.1989
Selected format:Cracking C4 fraction for industrial use--Determination of density or relative density--Pressure hydrometer method
WITHDRAWN published on 1.1.1986
Selected format:Cracking C4 fraction for industrial use--Determination of trace water--Karl Fischer method
WITHDRAWN published on 1.1.1986
Selected format:Cracking C4 fraction for industrial use--Determination of alpha acetylenes--Silver nitrate method
WITHDRAWN published on 1.1.1986
Selected format:Indium
WITHDRAWN published on 1.1.1986
Selected format:-
WITHDRAWN published on 1.1.1986
Selected format:Latest update: 2026-06-26 (Number of items: 2 284 409)
© Copyright 2026 NORMSERVIS s.r.o.