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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
Plastics and rubber machines—Size reduction machines—Part 4:Safety requirements for agglomerators
WITHDRAWN published on 23.12.2010
Selected format:High pure indium--Determination of aluminum, cadmium, copper, magnesium, lead and zinc contents--Spectrochemical method
WITHDRAWN published on 1.1.1981
Selected format:High pure indium--Determination of iron content--Spectrochemical method
WITHDRAWN published on 1.1.1981
Selected format:High pure indium--Determination of arsenic content--Spectrochemical method
WITHDRAWN published on 1.1.1981
Selected format:High pure indium--Determination of silicon content--Spectrochemical method
WITHDRAWN published on 1.1.1981
Selected format:High pure indium--Determination of sulphur content
WITHDRAWN published on 1.1.1981
Selected format:High pure indium--Determination of thallium content
WITHDRAWN published on 1.1.1981
Selected format:High pure indium--Determination of tin content
WITHDRAWN published on 1.1.1981
Selected format:Nuclear grade silver-indium-cadmium rods
WITHDRAWN published on 23.12.2010
Selected format:Safety of chemical laboratories—Technical standards for conducting metallurgical analysis
WITHDRAWN published on 7.6.1981
Selected format:Latest update: 2026-03-27 (Number of items: 2 269 573)
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