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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
Methods for chemical analysis of high-titanium slag and rutile--The persulfate oxidation-arsenite volumetric method for the determination of manganous monoxide content
WITHDRAWN published on 27.12.1983
Selected format:Methods for chemical analysis of lead-base alloys--The iodimetric titration method for the determination of tin content
WITHDRAWN published on 1.1.1983
Selected format:Methods for chemical analysis of lead and lead alloys—Determination of tin content
WITHDRAWN published on 28.8.2000
Selected format:Methods for chemical analysis of lead and lead alloys—Determination of silver content
WITHDRAWN published on 28.8.2000
Selected format:Methods for chemical analysis of lead and lead alloys—Determination of zinc content
WITHDRAWN published on 28.8.2000
Selected format:Methods for chemical analysis of lead and lead alloys—Determination of thallium content
WITHDRAWN published on 28.8.2000
Selected format:Methods for chemical analysis of lead and lead alloys—Determination of aluminium content
WITHDRAWN published on 28.8.2000
Selected format:Methods for chemical analysis of lead and lead alloys—Determination of antimony content
WITHDRAWN published on 28.8.2000
Selected format:Methods for chemical analysis of lead and lead alloys—Determination of copper content
WITHDRAWN published on 28.8.2000
Selected format:Methods for chemical analysis of lead and lead alloys—Determination of iron content
WITHDRAWN published on 28.8.2000
Selected format:Latest update: 2025-11-10 (Number of items: 2 243 715)
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