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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
Small and medium power internal combustion engines—Cleanliness measurement
WITHDRAWN published on 11.7.2005
Selected format:Ujimqin sheep
WITHDRAWN published on 9.8.1983
Selected format:Zhongwei goat
WITHDRAWN published on 10.8.1983
Selected format:Methods for chemical analysis of xenotime concentrates--The 5-Br-PADAP and thoron photometric methods for the determination of uranium and thorium
WITHDRAWN published on 1.1.1983
Selected format:Methods for chemical analysis of xenotime concentrates--The 5-Br-PADAP and thoron photometric methods for the determination of uranium and thorium
WITHDRAWN published on 12.8.1983
Selected format:Method for chemical analysis of tungsten-molybdenum alloy—The EDTA volumetric method for the determination of molybdenum content
WITHDRAWN published on 12.8.1983
Selected format:Methods for chemical analysis of cadmium--The atomic absorption spectrophotometric method for the determination of silver content
WITHDRAWN published on 1.1.1983
Selected format:Methods for chemical analysis of cadmium--The dimethylglyoxime photometric method for the determination of nickel content
WITHDRAWN published on 1.1.1983
Selected format:Methods for chemical analysis of high purity aluminum--The 1, 10-phenanthroline-thiocyanate photometric method for the determination of iron content
WITHDRAWN published on 1.1.1983
Selected format:Methods for chemical analysis of high purity aluminum--The extraction-molybdenum blue photometric method for the determination of silicon content
WITHDRAWN published on 1.1.1983
Selected format:Latest update: 2025-12-10 (Number of items: 2 249 470)
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