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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
Protease preparations
WITHDRAWN published on 27.4.2009
Selected format:Fructooligosaccharide
WITHDRAWN published on 27.4.2009
Selected format:Hydraulic fluid power—Positive displacement pumps and motors—Dimensions and identification code for mounting flanges and shaft ends—Part 1:Two-and four-hole flanges and shaft ends
WITHDRAWN published on 29.8.1994
Selected format:Hydraulic fluid power—Positive displacement pumps and motors—Dimensions and identification code for mounting flanges and shaft ends—Part 2:Polygonal flanges(including circular flanges)
WITHDRAWN published on 11.1.1993
Selected format:Yeast extract
WITHDRAWN published on 27.4.2009
Selected format:D-xylose
WITHDRAWN published on 27.4.2009
Selected format:Immobilizod glucose isomerase preparation
WITHDRAWN published on 27.4.2009
Selected format:Superabrasive—Types of synthetic diamond
WITHDRAWN published on 23.4.2009
Selected format:Superabrasives—Limit deviations and run-out tolerances for grinding wheels with diamond or cubic boron nitride and mounted points
WITHDRAWN published on 23.4.2009
Selected format:Conventional abrasive—Testing method for toughness(Ball mill method)
WITHDRAWN published on 23.4.2009
Selected format:Latest update: 2026-04-10 (Number of items: 2 271 455)
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