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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
Antimony trioxide—Determination of antimony trioxide content
WITHDRAWN published on 15.7.1998
Selected format:Chemical analysis of antimony trioxide--Determination of antimony trioxide by difference
WITHDRAWN published on 1.1.1982
Selected format:Antimony trioxide—Determination of arsenic content
WITHDRAWN published on 15.7.1998
Selected format:Chemical analysis of antimony trioxide--Gravimetric method for determination of tartaric acid insolubles
WITHDRAWN published on 1.1.1982
Selected format:Antimony trioxide—Determination of lead content
WITHDRAWN published on 15.7.1998
Selected format:Chemical analysis of antimony trioxide--The dithizone photometric method for determination of lead
WITHDRAWN published on 1.1.1982
Selected format:Antimony trioxide—Determination of copper content
WITHDRAWN published on 15.7.1998
Selected format:Antimony trioxide—Determination of iron content
WITHDRAWN published on 15.7.1998
Selected format:Antimony trioxide—Determination of selenium content
WITHDRAWN published on 15.7.1998
Selected format:Chemical analysis of antimony trisulfide--The bromate volumetric method for determination of antimony
WITHDRAWN published on 1.1.1982
Selected format:Latest update: 2026-01-26 (Number of items: 2 257 479)
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